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Abuse Potential of Orally Administered Crushed Embeda Compared to Crushed Controlled-Release Morphine and Placebo in Non-Dependent Recreational Opioid Users

A Randomized, Double-Blind, Placebo- and Active-Controlled, 3-Way Crossover Study to Determine the Abuse Potential of Oral Administration of Crushed EMBEDA Relative to Crushed Controlled-Release Morphine Sulfate and Placebo in Non Dependent, Recreational Opioid Users

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01380093
Enrollment
80
Registered
2011-06-27
Start date
2011-02-28
Completion date
2011-05-31
Last updated
2012-05-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nondependent Opioid Abuse, Episodic

Keywords

abuse potential, abuse liability, recreational opioid use, morphine

Brief summary

The primary purpose of this study is to determine the abuse potential of EMBEDA compared to controlled release morphine when crushed and taken orally by non-dependent recreational opioid users; secondary purposes include to determine the abuse potential of crushed EMBEDA relative to placebo and and to compare the pharmacokinetics and safety of crushed EMBEDA with crushed controlled-release morphine and crushed placebo.

Interventions

DRUGPlacebo

Single-dose, 2 x microcrystalline cellulose (weighed to equal weights of average tablet/capsule of active comparator) mixed with 150 ml artificially sweetened, non-carbonated beverage

DRUGMS Contin (morphine sulfate, controlled release)

Single-dose, 2 x 60 mg morphine sulfate whole tablets manually crushed and mixed with 150 ml artificially sweetened, non-carbonated beverage

DRUGEMBEDA (morphine sulfate / naltrexone hydrochloride)

Single-dose, solution 2 x 60 mg morphine sulfate with sequestered 2.4 mg Naltrexone hydrochloride whole capsules manually crushed and mixed with 150 ml artificially sweetened, non-carbonated beverage

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Subject is a recreational opioid user who is NOT physically dependent on opioids based on Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition-Text Revision (DSM-IV-TR) criteria, and the Naloxone Challenge. A recreational opioid user is defined as recreationally abusing opioids for non-therapeutic purposes (i.e., for psychoactive effects) on at least 10 occasions within the last year and at least once in the 12 weeks prior to Visit 1. * Subject is in generally good health as determined by medical history, physical examination, vital signs, clinical laboratory tests, and 12-lead electrocardiogram (ECG).

Exclusion criteria

* Has a history or current diagnosis of substance dependence (excluding caffeine and nicotine), as assessed by the Investigator using the DSM IV-TR criteria. * Has participated in, is currently participating in, or is seeking treatment for substance- and/or alcohol-related disorders (excluding nicotine and caffeine). * History or presence of any clinically significant illness (e.g., cardiovascular, pulmonary, hepatic, renal, hematologic, gastrointestinal, endocrine, immunologic, dermatologic, neurologic, oncologic, musculoskeletal, or psychiatric) or any other condition, which in the opinion of the Investigator would jeopardize the safety of the subject or the validity of the study results. * Has a known allergy or history of hypersensitivity to morphine sulfate, opioids in general, naltrexone hydrochloride (HCl) or similar compounds and/or the known excipients in the investigational drug products. * Has any condition in which an opioid is contraindicated (e.g., significant respiratory depression, acute or severe bronchial asthma or hypercarbia, or is suspected of having paralytic ileus). * Females who are pregnant, lactating, or are planning to become pregnant during the course of the study. Females with a positive serum pregnancy test at Visit 1 or at any subsequent study visit will be excluded from participating in the study.

Design outcomes

Primary

MeasureTime frameDescription
Drug Liking: Area Under Effect Curve (AUE) From 0-2 Hours0.5, 1, 1.5 and 2 hrs post-doseDrug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 millimeter (mm) bipolar visual analogue scale (VAS) anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hours (hrs) (0-2).
Drug Liking: Peak Effect (Emax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseDrug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). Emax = Maximum observed score.
High: Area Under Effect Curve (AUE) From 0-2 Hours0.5, 1, 1.5 and 2 hrs post-doseHigh VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).
High: Peak Effect (Emax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseHigh VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.

Secondary

MeasureTime frameDescription
Drug Liking: Area Under Effect Curve (AUE) From 0-24 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseDrug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).
Drug Liking: Time to Maximum (Peak) Effect (TEmax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseDrug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). TEmax = Time to maximum observed score.
High: Area Under Effect Curve (AUE) From 0-1 Hour0.5 and 1 hrs post-doseHigh VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).
High: Area Under Effect Curve (AUE) From 0-4 Hours0.5, 1, 1.5, 2, 3 and 4 hrs post-doseHigh VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).
High: Area Under Effect Curve (AUE) From 0-8 Hours0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseHigh VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).
High: Area Under Effect Curve (AUE) From 0-12 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseHigh VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).
High: Area Under Effect Curve (AUE) From 0-24 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseHigh VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).
High: Time to Maximum (Peak) Effect (TEmax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseHigh VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.
Good Effects: Area Under Effect Curve (AUE) From 0-1 Hour0.5 and 1 hrs post-doseGood effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).
Good Effects: Area Under Effect Curve (AUE) From 0-2 Hours0.5, 1, 1.5 and 2 hrs post-doseGood effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).
Good Effects: Area Under Effect Curve (AUE) From 0-4 Hours0.5, 1, 1.5, 2, 3 and 4 hrs post-doseGood effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).
Good Effects: Area Under Effect Curve (AUE) From 0-8 Hours0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseGood effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).
Good Effects: Area Under Effect Curve (AUE) From 0-12 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseGood effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).
Good Effects: Area Under Effect Curve (AUE) From 0-24 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseGood effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).
Good Effects: Peak Effect (Emax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseGood effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.
Good Effects: Time to Maximum (Peak) Effect (TEmax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseGood effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.
Any Effects: Area Under Effect Curve (AUE) From 0-1 Hour0.5 and 1 hrs post-doseAny effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).
Any Effects: Area Under Effect Curve (AUE) From 0-2 Hours0.5, 1, 1.5 and 2 hrs post-doseAny effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).
Any Effects: Area Under Effect Curve (AUE) From 0-4 Hours0.5, 1, 1.5, 2, 3 and 4 hrs post-doseAny effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).
Any Effects: Area Under Effect Curve (AUE) From 0-8 Hours0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseAny effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).
Any Effects: Area Under Effect Curve (AUE) From 0-12 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseAny effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).
Any Effects: Area Under Effect Curve (AUE) From 0-24 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseAny effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).
Any Effects: Peak Effect (Emax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseAny effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.
Any Effects: Time to Maximum (Peak) Effect (TEmax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseAny effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.
Bad Effects: Area Under Effect Curve (AUE) From 0-1 Hour0.5 and 1 hrs post-doseBad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).
Bad Effects: Area Under Effect Curve (AUE) From 0-2 Hours0.5, 1, 1.5 and 2 hrs post-doseBad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).
Bad Effects: Area Under Effect Curve (AUE) From 0-4 Hours0.5, 1, 1.5, 2, 3 and 4 hrs post-doseBad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).
Bad Effects: Area Under Effect Curve (AUE) From 0-8 Hours0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseBad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).
Bad Effects: Area Under Effect Curve (AUE) From 0-12 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseBad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).
Bad Effects: Area Under Effect Curve (AUE) From 0-24 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseBad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).
Bad Effects: Peak Effect (Emax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseBad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.
Bad Effects: Time to Maximum (Peak) Effect (TEmax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseBad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.
Nausea: Area Under Effect Curve (AUE) From 0-1 HourPre-dose, 0.5 and 1 hrs post-doseNausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).
Nausea: Area Under Effect Curve (AUE) From 0-2 HoursPre-dose, 0.5, 1, 1.5 and 2 hrs post-doseNausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).
Nausea: Area Under Effect Curve (AUE) From 0-4 HoursPre-dose, 0.5, 1, 1.5, 2, 3 and 4 hrs post-doseNausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).
Nausea: Area Under Effect Curve (AUE) From 0-8 HoursPre-dose, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseNausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).
Nausea: Area Under Effect Curve (AUE) From 0-12 HoursPre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseNausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).
Nausea: Area Under Effect Curve (AUE) From 0-24 HoursPre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseNausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).
Nausea: Peak Effect (Emax)Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseNausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.
Nausea: Time to Maximum (Peak) Effect (TEmax)Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseNausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.
Feel Sick: Area Under Effect Curve (AUE) From 0-1 Hour0.5 and 1 hrs post-doseFeel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).
Feel Sick: Area Under Effect Curve (AUE) From 0-2 Hours0.5, 1, 1.5 and 2 hrs post-doseFeel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).
Feel Sick: Area Under Effect Curve (AUE) From 0-4 Hours0.5, 1, 1.5, 2, 3 and 4 hrs post-doseFeel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).
Feel Sick: Area Under Effect Curve (AUE) From 0-8 Hours0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseFeel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).
Feel Sick: Area Under Effect Curve (AUE) From 0-12 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseFeel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).
Feel Sick: Area Under Effect Curve (AUE) From 0-24 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseFeel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).
Feel Sick: Peak Effect (Emax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseFeel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.
Feel Sick: Time to Maximum (Peak) Effect (TEmax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseFeel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.
Sleepy: Area Under Effect Curve (AUE) From 0-1 Hour0.5 and 1 hrs post-doseSleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr(0-1).
Sleepy: Area Under Effect Curve (AUE) From 0-2 Hours0.5, 1, 1.5 and 2 hrs post-doseSleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).
Sleepy: Area Under Effect Curve (AUE) From 0-4 Hours0.5, 1, 1.5, 2, 3 and 4 hrs post-doseSleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).
Sleepy: Area Under Effect Curve (AUE) From 0-8 Hours0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseSleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).
Sleepy: Area Under Effect Curve (AUE) From 0-12 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseSleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).
Sleepy: Area Under Effect Curve (AUE) From 0-24 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseSleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).
Sleepy: Peak Effect (Emax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseSleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.
Sleepy: Time to Maximum (Peak) Effect (TEmax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseSleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.
Dizzy: Area Under Effect Curve (AUE) From 0-1 Hour0.5 and 1 hrs post-doseDizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).
Dizzy: Area Under Effect Curve (AUE) From 0-2 Hours0.5, 1, 1.5 and 2 hrs post-doseDizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).
Dizzy: Area Under Effect Curve (AUE) From 0-4 Hours0.5, 1, 1.5, 2, 3 and 4 hrs post-doseDizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).
Dizzy: Area Under Effect Curve (AUE) From 0-8 Hours0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseDizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).
Dizzy: Area Under Effect Curve (AUE) From 0-12 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseDizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).
Dizzy: Area Under Effect Curve (AUE) From 0-24 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseDizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).
Dizzy: Peak Effect (Emax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseDizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.
Dizzy: Time to Maximum (Peak) Effect (TEmax)0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseDizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.
Overall Drug Liking Effect at 24 Hours24 hrs post doseOverall drug liking VAS assesses the participant's global perception of drug liking (that is, effects over the whole course of the drug experience including any carryover effects). A 100 mm VAS is used to assess response based on a score ranging from 0 mm to 100 mm (0 mm = strong disliking, 50 mm= neither like nor dislike, and 100 mm= strong liking).
Take Drug Again Effect at 24 Hours24 hrs post doseTake drug again VAS is a subjective assessment of the degree to which a participant would desire to take the drug again if given the opportunity. It is presented on a 100 mm VAS with score ranging from 0 mm to 100 mm (score of 0 mm = definitely would not, 50 mm = do not care, and 100 mm = definitely would).
Pupillometry: Area Under Effect Curve (AUE) From 0-1 HourPre-dose, 0.5 and 1 hrs post-dosePupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).
Pupillometry: Area Under Effect Curve (AUE) From 0-2 HoursPre-dose, 0.5, 1, 1.5 and 2 hrs post-dosePupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).
Pupillometry: Area Under Effect Curve (AUE) From 0-4 HoursPre-dose, 0.5, 1, 1.5, 2, 3 and 4 hrs post-dosePupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).
Pupillometry: Area Under Effect Curve (AUE) From 0-8 HoursPre-dose, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dosePupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).
Pupillometry: Area Under Effect Curve (AUE) From 0-12 HoursPre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dosePupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).
Pupillometry: Area Under Effect Curve (AUE) From 0-24 HoursPre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dosePupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).
Pupillometry: Peak Effect (Emax)Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dosePupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. Emax = Smallest post-dose pupil size.
Pupillometry: Time to Maximum (Peak) Effect (TEmax)Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dosePupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. TEmax = Time to smallest post-dose pupil size.
Time to Reach Maximum Observed Plasma Concentration (Tmax) of MorphinePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose
Maximum Observed Plasma Concentration (Cmax) of MorphinePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-1)] of MorphinePre-dose, 0.5 and 1 hrs post-doseAUC (0-1) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-1).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-2)] of MorphinePre-dose, 0.5, 1, 1.5 and 2 hrs post-doseAUC (0-2) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-2).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-4)] of MorphinePre-dose, 0.5, 1, 1.5, 2, 3 and 4 hrs post-doseAUC (0-4) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-4).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-8)] of MorphinePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseAUC (0-8) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-8).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-12)] of MorphinePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseAUC (0-12) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-12).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)] of MorphinePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseAUC (0-24) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-24).
Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of MorphinePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseAUC (0 - ∞) = Area under the plasma concentration versus time curve (AUC) from time zero to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).
Time to Reach Maximum Observed Plasma Concentration (Tmax) of NaltrexonePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose
Maximum Observed Plasma Concentration (Cmax) of NaltrexonePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-1)] of NaltrexonePre-dose, 0.5 and 1 hrs post-doseAUC (0-1) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-1).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-2)] of NaltrexonePre-dose, 0.5, 1, 1.5 and 2 hrs post-doseAUC (0-2) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-2).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-4)] of NaltrexonePre-dose, 0.5, 1, 1.5, 2, 3 and 4 hrs post-doseAUC (0-4) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-4).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-8)] of NaltrexonePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseAUC (0-8) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-8).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-12)] of NaltrexonePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseAUC (0-12) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-12).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)] of NaltrexonePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseAUC (0-24) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-24).
Drug Liking: Area Under Effect Curve (AUE) From 0-1 Hour0.5 and 1 hrs post-doseDrug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).
Time to Reach Maximum Observed Plasma Concentration (Tmax) of Naltrexone Metabolite (6-beta-naltrexol)Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose
Maximum Observed Plasma Concentration (Cmax) of Naltrexone Metabolite (6-beta-naltrexol)Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-1)] of Naltrexone Metabolite (6-beta-naltrexol)Pre-dose, 0.5 and 1 hrs post-doseAUC (0-1) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-1).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-2)] of Naltrexone Metabolite (6-beta-naltrexol)Pre-dose, 0.5, 1, 1.5 and 2 hrs post-doseAUC (0-2) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-2).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-4)] of Naltrexone Metabolite (6-beta-naltrexol)Pre-dose, 0.5, 1, 1.5, 2, 3 and 4 hrs post-doseAUC (0-4) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-4).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-8)] of Naltrexone Metabolite (6-beta-naltrexol)Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseAUC (0-8) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-8).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-12)] of Naltrexone Metabolite (6-beta-naltrexol)Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseAUC (0-12) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-12).
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)] of Naltrexone Metabolite (6-beta-naltrexol)Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseAUC (0-24) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-24).
Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of Naltrexone Metabolite (6-beta-naltrexol)Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseAUC (0 - ∞) = Area under the plasma concentration versus time curve (AUC) from time zero to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).
Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of NaltrexonePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-doseAUC (0 - ∞) = Area under the plasma concentration versus time curve (AUC) from time zero to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).
Drug Liking: Area Under Effect Curve (AUE) From 0-4 Hours0.5, 1, 1.5, 2, 3 and 4 hrs post-doseDrug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).
Drug Liking: Area Under Effect Curve (AUE) From 0-8 Hours0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-doseDrug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).
Drug Liking: Area Under Effect Curve (AUE) From 0-12 Hours0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-doseDrug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Countries

United States

Participant flow

Participants by arm

ArmCount
Entire Study Population
Includes all participants enrolled in the study.
80
Total80

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008
Drug Discrimination Phase: Day 1Discrimination failure010000000
Drug Discrimination Phase: Day 2Backup participant001000000
Drug Discrimination Phase: Day 2Discrimination failure049000000
Drug Discrimination Phase: Day 2Physician Decision031000000
Drug Discrimination Phase: Day 2Positive urine drug screen011000000
Drug Discrimination Phase: Day 2Sponsor decision001000000
Drug Discrimination Phase: Day 2Withdrawal by Subject010000000
Naloxone Challenge PhaseScreen failures2100000000
Treatment Phase: Second InterventionOther000100000
Treatment Phase: Third InterventionNon-compliance000000001
Treatment Phase: Third InterventionOther000000001

Baseline characteristics

CharacteristicEntire Study Population
Age Continuous24.7 years
STANDARD_DEVIATION 4.52
Sex: Female, Male
Female
17 Participants
Sex: Female, Male
Male
63 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
0 / 591 / 5851 / 592 / 3610 / 3527 / 33
serious
Total, serious adverse events
0 / 590 / 580 / 590 / 361 / 350 / 33

Outcome results

Primary

Drug Liking: Area Under Effect Curve (AUE) From 0-2 Hours

Drug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 millimeter (mm) bipolar visual analogue scale (VAS) anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hours (hrs) (0-2).

Time frame: 0.5, 1, 1.5 and 2 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose pharmacodynamic (PD) data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDrug Liking: Area Under Effect Curve (AUE) From 0-2 Hours88.3 hrs*mmStandard Deviation 4.41
EMBEDADrug Liking: Area Under Effect Curve (AUE) From 0-2 Hours100.3 hrs*mmStandard Deviation 12.29
MorphineDrug Liking: Area Under Effect Curve (AUE) From 0-2 Hours124.7 hrs*mmStandard Deviation 22.7
Comparison: Least square (LS) mean and 95% confidence interval (CI) were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-31.7, -18.1]Mixed Models Analysis
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000995% CI: [5.1, 18.6]Mixed Models Analysis
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [30, 43.6]Mixed Models Analysis
Primary

Drug Liking: Peak Effect (Emax)

Drug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). Emax = Maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDrug Liking: Peak Effect (Emax)51.6 mmStandard Deviation 4.21
EMBEDADrug Liking: Peak Effect (Emax)65.2 mmStandard Deviation 11.21
MorphineDrug Liking: Peak Effect (Emax)80.6 mmStandard Deviation 13.09
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence. Planned power of at least 89% assumed a mean difference of 15 to 30 points and a standard deviation of paired differences of 15 to 20 points, with conservative multiple comparison adjustment for alpha of 0.025.p-value: <0.000195% CI: [-20.2, -11.1]Mixed Models Analysis
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [8.9, 18]Mixed Models Analysis
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [24.6, 33.7]Mixed Models Analysis
Primary

High: Area Under Effect Curve (AUE) From 0-2 Hours

High VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).

Time frame: 0.5, 1, 1.5 and 2 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboHigh: Area Under Effect Curve (AUE) From 0-2 Hours2.0 hrs*mmStandard Deviation 7.34
EMBEDAHigh: Area Under Effect Curve (AUE) From 0-2 Hours26.9 hrs*mmStandard Deviation 27.72
MorphineHigh: Area Under Effect Curve (AUE) From 0-2 Hours77.5 hrs*mmStandard Deviation 34.4
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-61.2, -41]Mixed Models Analysis
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [14.5, 34.6]Mixed Models Analysis
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [65.6, 85.8]Mixed Models Analysis
Primary

High: Peak Effect (Emax)

High VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboHigh: Peak Effect (Emax)1.8 mmStandard Deviation 5.73
EMBEDAHigh: Peak Effect (Emax)29.2 mmStandard Deviation 20.72
MorphineHigh: Peak Effect (Emax)64.1 mmStandard Deviation 18.85
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-42.1, -27.7]Mixed Models Analysis
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [20.1, 34.4]Mixed Models Analysis
Comparison: LS mean and 95% CI were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [54.9, 69.4]Mixed Models Analysis
Secondary

Any Effects: Area Under Effect Curve (AUE) From 0-12 Hours

Any effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboAny Effects: Area Under Effect Curve (AUE) From 0-12 Hours7.8 hrs*mmStandard Deviation 27.85
EMBEDAAny Effects: Area Under Effect Curve (AUE) From 0-12 Hours155.4 hrs*mmStandard Deviation 117.1
MorphineAny Effects: Area Under Effect Curve (AUE) From 0-12 Hours422.5 hrs*mmStandard Deviation 136
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-313.2, -223.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [102.1, 191.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [370.2, 460.2]Mixed Models Analysis
Secondary

Any Effects: Area Under Effect Curve (AUE) From 0-1 Hour

Any effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).

Time frame: 0.5 and 1 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboAny Effects: Area Under Effect Curve (AUE) From 0-1 Hour0.8 hrs*mmStandard Deviation 2.23
EMBEDAAny Effects: Area Under Effect Curve (AUE) From 0-1 Hour9.8 hrs*mmStandard Deviation 12.17
MorphineAny Effects: Area Under Effect Curve (AUE) From 0-1 Hour22.6 hrs*mmStandard Deviation 14.89
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-17, -9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [4.8, 12.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [17.8, 25.8]Mixed Models Analysis
Secondary

Any Effects: Area Under Effect Curve (AUE) From 0-24 Hours

Any effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboAny Effects: Area Under Effect Curve (AUE) From 0-24 Hours10.2 hrs*mmStandard Deviation 33.8
EMBEDAAny Effects: Area Under Effect Curve (AUE) From 0-24 Hours176.4 hrs*mmStandard Deviation 130.79
MorphineAny Effects: Area Under Effect Curve (AUE) From 0-24 Hours510.8 hrs*mmStandard Deviation 194.67
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-395.4, -276.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [106.4, 224.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [442.2, 561]Mixed Models Analysis
Secondary

Any Effects: Area Under Effect Curve (AUE) From 0-2 Hours

Any effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).

Time frame: 0.5, 1, 1.5 and 2 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboAny Effects: Area Under Effect Curve (AUE) From 0-2 Hours1.8 hrs*mmStandard Deviation 6.41
EMBEDAAny Effects: Area Under Effect Curve (AUE) From 0-2 Hours26.7 hrs*mmStandard Deviation 28.59
MorphineAny Effects: Area Under Effect Curve (AUE) From 0-2 Hours71.5 hrs*mmStandard Deviation 33.15
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-55.3, -35.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [14.6, 34.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [59.9, 79.8]Mixed Models Analysis
Secondary

Any Effects: Area Under Effect Curve (AUE) From 0-4 Hours

Any effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).

Time frame: 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboAny Effects: Area Under Effect Curve (AUE) From 0-4 Hours3.2 hrs*mmStandard Deviation 11.95
EMBEDAAny Effects: Area Under Effect Curve (AUE) From 0-4 Hours63.8 hrs*mmStandard Deviation 54.35
MorphineAny Effects: Area Under Effect Curve (AUE) From 0-4 Hours172.2 hrs*mmStandard Deviation 62.6
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-129.3, -88.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [39.9, 80.4]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [148.9, 189.5]Mixed Models Analysis
Secondary

Any Effects: Area Under Effect Curve (AUE) From 0-8 Hours

Any effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboAny Effects: Area Under Effect Curve (AUE) From 0-8 Hours6.4 hrs*mmStandard Deviation 22.45
EMBEDAAny Effects: Area Under Effect Curve (AUE) From 0-8 Hours125.6 hrs*mmStandard Deviation 94.76
MorphineAny Effects: Area Under Effect Curve (AUE) From 0-8 Hours331.8 hrs*mmStandard Deviation 105.57
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-242, -172.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [83.9, 153.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [290.8, 360.7]Mixed Models Analysis
Secondary

Any Effects: Peak Effect (Emax)

Any effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboAny Effects: Peak Effect (Emax)1.9 mmStandard Deviation 5.35
EMBEDAAny Effects: Peak Effect (Emax)28.7 mmStandard Deviation 20.03
MorphineAny Effects: Peak Effect (Emax)62.4 mmStandard Deviation 18.59
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-40.7, -26.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [19.7, 33.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [53.4, 67.4]Mixed Models Analysis
Secondary

Any Effects: Time to Maximum (Peak) Effect (TEmax)

Any effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboAny Effects: Time to Maximum (Peak) Effect (TEmax)0.8 hrsStandard Deviation 0.99
EMBEDAAny Effects: Time to Maximum (Peak) Effect (TEmax)3.1 hrsStandard Deviation 2.34
MorphineAny Effects: Time to Maximum (Peak) Effect (TEmax)2.8 hrsStandard Deviation 2.03
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.334595% CI: [-0.4, 1.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [1.5, 3.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [1.1, 2.8]Mixed Models Analysis
Secondary

Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of Morphine

AUC (0 - ∞) = Area under the plasma concentration versus time curve (AUC) from time zero to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of Morphine551755 hrs*pg/mLStandard Deviation 476987
EMBEDAArea Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of Morphine369270 hrs*pg/mLStandard Deviation 98821.5
Comparison: Natural log transformed AUC (0-∞) was analyzed using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000590% CI: [1.17, 1.49]Mixed Models Analysis
Secondary

Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of Naltrexone

AUC (0 - ∞) = Area under the plasma concentration versus time curve (AUC) from time zero to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of Naltrexone3320.90 hrs*pg/mLStandard Deviation 1616.514
Secondary

Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of Naltrexone Metabolite (6-beta-naltrexol)

AUC (0 - ∞) = Area under the plasma concentration versus time curve (AUC) from time zero to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of Naltrexone Metabolite (6-beta-naltrexol)74931.5 hrs*pg/mLStandard Deviation 25580.1
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-12)] of Morphine

AUC (0-12) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-12).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-12)] of Morphine303428 hrs*pg/mLStandard Deviation 86669.9
EMBEDAArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-12)] of Morphine288324 hrs*pg/mLStandard Deviation 81697.4
Comparison: Natural log transformed AUC (0-12) was analyzed using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.42590% CI: [0.97, 1.1]Mixed Models Analysis
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-12)] of Naltrexone

AUC (0-12) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-12).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-12)] of Naltrexone2813.34 hrs*pg/mLStandard Deviation 1337.306
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-12)] of Naltrexone Metabolite (6-beta-naltrexol)

AUC (0-12) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-12).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-12)] of Naltrexone Metabolite (6-beta-naltrexol)33324.9 hrs*pg/mLStandard Deviation 7309.76
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-1)] of Morphine

AUC (0-1) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-1).

Time frame: Pre-dose, 0.5 and 1 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-1)] of Morphine52644.9 hrs*pg/mLStandard Deviation 19951.6
EMBEDAArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-1)] of Morphine67920.1 hrs*pg/mLStandard Deviation 24702.8
Comparison: Natural log transformed AUC (0-1) was analyzed using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000490% CI: [0.69, 0.86]Mixed Models Analysis
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-1)] of Naltrexone

AUC (0-1) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-1).

Time frame: Pre-dose, 0.5 and 1 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-1)] of Naltrexone619.24 hrs*pg/mLStandard Deviation 441.602
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-1)] of Naltrexone Metabolite (6-beta-naltrexol)

AUC (0-1) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-1).

Time frame: Pre-dose, 0.5 and 1 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-1)] of Naltrexone Metabolite (6-beta-naltrexol)3934.5 hrs*pg/mLStandard Deviation 1529.66
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)] of Morphine

AUC (0-24) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-24).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)] of Morphine376260 hrs*pg/mLStandard Deviation 104635.5
EMBEDAArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)] of Morphine335357 hrs*pg/mLStandard Deviation 91242.6
Comparison: Natural log transformed AUC (0-24) was analyzed using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.020490% CI: [1.03, 1.18]Mixed Models Analysis
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)] of Naltrexone

AUC (0-24) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-24).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)] of Naltrexone3159.91 hrs*pg/mLStandard Deviation 1522.915
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)] of Naltrexone Metabolite (6-beta-naltrexol)

AUC (0-24) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-24).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)] of Naltrexone Metabolite (6-beta-naltrexol)47809.1 hrs*pg/mLStandard Deviation 10184.33
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-2)] of Morphine

AUC (0-2) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-2).

Time frame: Pre-dose, 0.5, 1, 1.5 and 2 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-2)] of Morphine112989 hrs*pg/mLStandard Deviation 33784.6
EMBEDAArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-2)] of Morphine129721 hrs*pg/mLStandard Deviation 39670.7
Comparison: Natural log transformed AUC (0-2) was analyzed using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.006590% CI: [0.79, 0.94]Mixed Models Analysis
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-2)] of Naltrexone

AUC (0-2) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-2).

Time frame: Pre-dose, 0.5, 1, 1.5 and 2 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-2)] of Naltrexone1270.91 hrs*pg/mLStandard Deviation 700.063
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-2)] of Naltrexone Metabolite (6-beta-naltrexol)

AUC (0-2) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-2).

Time frame: Pre-dose, 0.5, 1, 1.5 and 2 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-2)] of Naltrexone Metabolite (6-beta-naltrexol)8916.1 hrs*pg/mLStandard Deviation 2747.62
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-4)] of Morphine

AUC (0-4) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-4).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-4)] of Morphine197745 hrs*pg/mLStandard Deviation 54807.4
EMBEDAArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-4)] of Morphine199442 hrs*pg/mLStandard Deviation 60559.8
Comparison: Natural log transformed AUC (0-4) was analyzed using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.639990% CI: [0.91, 1.06]Mixed Models Analysis
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-4)] of Naltrexone

AUC (0-4) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-4).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-4)] of Naltrexone2018.23 hrs*pg/mLStandard Deviation 1000.217
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-4)] of Naltrexone Metabolite (6-beta-naltrexol)

AUC (0-4) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-4).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-4)] of Naltrexone Metabolite (6-beta-naltrexol)16532.5 hrs*pg/mLStandard Deviation 4351.58
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-8)] of Morphine

AUC (0-8) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-8).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-8)] of Morphine269743 hrs*pg/mLStandard Deviation 77664.5
EMBEDAArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-8)] of Morphine263270 hrs*pg/mLStandard Deviation 76706
Comparison: Natural log transformed AUC (0-8) was analyzed using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.905790% CI: [0.94, 1.08]Mixed Models Analysis
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-8)] of Naltrexone

AUC (0-8) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-8).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-8)] of Naltrexone2577.19 hrs*pg/mLStandard Deviation 1228.398
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-8)] of Naltrexone Metabolite (6-beta-naltrexol)

AUC (0-8) = Area under the plasma concentration versus time curve from time zero to time of last quantifiable concentration (0-8).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboArea Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-8)] of Naltrexone Metabolite (6-beta-naltrexol)26634.5 hrs*pg/mLStandard Deviation 6167.97
Secondary

Bad Effects: Area Under Effect Curve (AUE) From 0-12 Hours

Bad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboBad Effects: Area Under Effect Curve (AUE) From 0-12 Hours2.1 hrs*mmStandard Deviation 7.82
EMBEDABad Effects: Area Under Effect Curve (AUE) From 0-12 Hours28.4 hrs*mmStandard Deviation 56.67
MorphineBad Effects: Area Under Effect Curve (AUE) From 0-12 Hours110.3 hrs*mmStandard Deviation 116.6
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-112.9, -52.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.07895% CI: [-3.1, 56.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [79.6, 139.8]Mixed Models Analysis
Secondary

Bad Effects: Area Under Effect Curve (AUE) From 0-1 Hour

Bad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).

Time frame: 0.5 and 1 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboBad Effects: Area Under Effect Curve (AUE) From 0-1 Hour0.3 hrs*mmStandard Deviation 0.92
EMBEDABad Effects: Area Under Effect Curve (AUE) From 0-1 Hour0.6 hrs*mmStandard Deviation 1.24
MorphineBad Effects: Area Under Effect Curve (AUE) From 0-1 Hour1.5 hrs*mmStandard Deviation 3.7
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.045395% CI: [-2, 0]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.563795% CI: [-0.7, 1.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.01195% CI: [0.3, 2.3]Mixed Models Analysis
Secondary

Bad Effects: Area Under Effect Curve (AUE) From 0-24 Hours

Bad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboBad Effects: Area Under Effect Curve (AUE) From 0-24 Hours3.6 hrs*mmStandard Deviation 13.62
EMBEDABad Effects: Area Under Effect Curve (AUE) From 0-24 Hours36.8 hrs*mmStandard Deviation 76.5
MorphineBad Effects: Area Under Effect Curve (AUE) From 0-24 Hours147.2 hrs*mmStandard Deviation 157.74
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-153.7, -70.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.108995% CI: [-7.8, 75.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [104.1, 187.5]Mixed Models Analysis
Secondary

Bad Effects: Area Under Effect Curve (AUE) From 0-2 Hours

Bad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).

Time frame: 0.5, 1, 1.5 and 2 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboBad Effects: Area Under Effect Curve (AUE) From 0-2 Hours0.5 hrs*mmStandard Deviation 1.65
EMBEDABad Effects: Area Under Effect Curve (AUE) From 0-2 Hours2.6 hrs*mmStandard Deviation 4.4
MorphineBad Effects: Area Under Effect Curve (AUE) From 0-2 Hours7.4 hrs*mmStandard Deviation 12.5
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.004195% CI: [-8.2, -1.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.217895% CI: [-1.2, 5.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [3.7, 10.3]Mixed Models Analysis
Secondary

Bad Effects: Area Under Effect Curve (AUE) From 0-4 Hours

Bad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).

Time frame: 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboBad Effects: Area Under Effect Curve (AUE) From 0-4 Hours0.9 hrs*mmStandard Deviation 3.2
EMBEDABad Effects: Area Under Effect Curve (AUE) From 0-4 Hours7.7 hrs*mmStandard Deviation 13.27
MorphineBad Effects: Area Under Effect Curve (AUE) From 0-4 Hours27.1 hrs*mmStandard Deviation 36.06
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000195% CI: [-28.8, -9.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.15195% CI: [-2.6, 16.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [16.8, 35.7]Mixed Models Analysis
Secondary

Bad Effects: Area Under Effect Curve (AUE) From 0-8 Hours

Bad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboBad Effects: Area Under Effect Curve (AUE) From 0-8 Hours1.6 hrs*mmStandard Deviation 5.84
EMBEDABad Effects: Area Under Effect Curve (AUE) From 0-8 Hours19.7 hrs*mmStandard Deviation 37.56
MorphineBad Effects: Area Under Effect Curve (AUE) From 0-8 Hours74.6 hrs*mmStandard Deviation 80.92
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-75.9, -34.4]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.079695% CI: [-2.2, 39.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [52.9, 94.4]Mixed Models Analysis
Secondary

Bad Effects: Peak Effect (Emax)

Bad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboBad Effects: Peak Effect (Emax)0.6 mmStandard Deviation 1.6
EMBEDABad Effects: Peak Effect (Emax)6.6 mmStandard Deviation 10.3
MorphineBad Effects: Peak Effect (Emax)20.1 mmStandard Deviation 18.98
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-18.8, -8.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.021595% CI: [0.9, 11.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [14.6, 24.8]Mixed Models Analysis
Secondary

Bad Effects: Time to Maximum (Peak) Effect (TEmax)

Bad effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboBad Effects: Time to Maximum (Peak) Effect (TEmax)0.9 hrsStandard Deviation 1.6
EMBEDABad Effects: Time to Maximum (Peak) Effect (TEmax)2.2 hrsStandard Deviation 2.38
MorphineBad Effects: Time to Maximum (Peak) Effect (TEmax)4.5 hrsStandard Deviation 3.56
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000795% CI: [-3.6, -1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.045595% CI: [0, 2.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [2.3, 4.9]Mixed Models Analysis
Secondary

Dizzy: Area Under Effect Curve (AUE) From 0-12 Hours

Dizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDizzy: Area Under Effect Curve (AUE) From 0-12 Hours2.4 hrs*mmStandard Deviation 8.68
EMBEDADizzy: Area Under Effect Curve (AUE) From 0-12 Hours27.4 hrs*mmStandard Deviation 66.65
MorphineDizzy: Area Under Effect Curve (AUE) From 0-12 Hours71.4 hrs*mmStandard Deviation 111.82
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.005195% CI: [-73.1, -13.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.094195% CI: [-4.4, 55]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [38.8, 98.4]Mixed Models Analysis
Secondary

Dizzy: Area Under Effect Curve (AUE) From 0-1 Hour

Dizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).

Time frame: 0.5 and 1 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDizzy: Area Under Effect Curve (AUE) From 0-1 Hour0.4 hrs*mmStandard Deviation 1.28
EMBEDADizzy: Area Under Effect Curve (AUE) From 0-1 Hour0.9 hrs*mmStandard Deviation 2.41
MorphineDizzy: Area Under Effect Curve (AUE) From 0-1 Hour3.0 hrs*mmStandard Deviation 5.73
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.006295% CI: [-3.7, -0.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.499895% CI: [-1, 2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000895% CI: [1.1, 4.2]Mixed Models Analysis
Secondary

Dizzy: Area Under Effect Curve (AUE) From 0-24 Hours

Dizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDizzy: Area Under Effect Curve (AUE) From 0-24 Hours4.0 hrs*mmStandard Deviation 14.73
EMBEDADizzy: Area Under Effect Curve (AUE) From 0-24 Hours36.0 hrs*mmStandard Deviation 82.99
MorphineDizzy: Area Under Effect Curve (AUE) From 0-24 Hours85.5 hrs*mmStandard Deviation 135.09
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.008395% CI: [-85, -13.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.076695% CI: [-3.5, 68.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [45.4, 117.3]Mixed Models Analysis
Secondary

Dizzy: Area Under Effect Curve (AUE) From 0-2 Hours

Dizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).

Time frame: 0.5, 1, 1.5 and 2 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDizzy: Area Under Effect Curve (AUE) From 0-2 Hours0.6 hrs*mmStandard Deviation 1.7
EMBEDADizzy: Area Under Effect Curve (AUE) From 0-2 Hours2.8 hrs*mmStandard Deviation 6.26
MorphineDizzy: Area Under Effect Curve (AUE) From 0-2 Hours9.9 hrs*mmStandard Deviation 15.14
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000995% CI: [-11.1, -3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.269395% CI: [-1.8, 6.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [5.3, 13.3]Mixed Models Analysis
Secondary

Dizzy: Area Under Effect Curve (AUE) From 0-4 Hours

Dizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).

Time frame: 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDizzy: Area Under Effect Curve (AUE) From 0-4 Hours1.0 hrs*mmStandard Deviation 2.93
EMBEDADizzy: Area Under Effect Curve (AUE) From 0-4 Hours9.5 hrs*mmStandard Deviation 21.81
MorphineDizzy: Area Under Effect Curve (AUE) From 0-4 Hours26.1 hrs*mmStandard Deviation 41.05
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.004295% CI: [-27.2, -5.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.113995% CI: [-2.2, 19.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [14.1, 35.9]Mixed Models Analysis
Secondary

Dizzy: Area Under Effect Curve (AUE) From 0-8 Hours

Dizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDizzy: Area Under Effect Curve (AUE) From 0-8 Hours1.7 hrs*mmStandard Deviation 5.93
EMBEDADizzy: Area Under Effect Curve (AUE) From 0-8 Hours20.9 hrs*mmStandard Deviation 51.17
MorphineDizzy: Area Under Effect Curve (AUE) From 0-8 Hours56.7 hrs*mmStandard Deviation 87
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.003995% CI: [-58.5, -11.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.102695% CI: [-4, 42.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [31, 77.8]Mixed Models Analysis
Secondary

Dizzy: Peak Effect (Emax)

Dizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDizzy: Peak Effect (Emax)0.7 mmStandard Deviation 2.45
EMBEDADizzy: Peak Effect (Emax)5.5 mmStandard Deviation 11.18
MorphineDizzy: Peak Effect (Emax)13.7 mmStandard Deviation 17.66
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.001895% CI: [-12.9, -3.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.052795% CI: [-0.1, 9.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [7.9, 17.7]Mixed Models Analysis
Secondary

Dizzy: Time to Maximum (Peak) Effect (TEmax)

Dizzy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDizzy: Time to Maximum (Peak) Effect (TEmax)0.5 hrsStandard Deviation 0.09
EMBEDADizzy: Time to Maximum (Peak) Effect (TEmax)2.0 hrsStandard Deviation 2.57
MorphineDizzy: Time to Maximum (Peak) Effect (TEmax)2.4 hrsStandard Deviation 2.6
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.398695% CI: [-1.4, 0.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.002395% CI: [0.6, 2.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000295% CI: [1, 2.9]Mixed Models Analysis
Secondary

Drug Liking: Area Under Effect Curve (AUE) From 0-12 Hours

Drug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDrug Liking: Area Under Effect Curve (AUE) From 0-12 Hours591.0 hrs*mmStandard Deviation 20.36
EMBEDADrug Liking: Area Under Effect Curve (AUE) From 0-12 Hours658.2 hrs*mmStandard Deviation 81.77
MorphineDrug Liking: Area Under Effect Curve (AUE) From 0-12 Hours732.9 hrs*mmStandard Deviation 122.81
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000195% CI: [-112.8, -39.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000695% CI: [29.8, 103.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [105.7, 179.3]Mixed Models Analysis
Secondary

Drug Liking: Area Under Effect Curve (AUE) From 0-1 Hour

Drug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).

Time frame: 0.5 and 1 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDrug Liking: Area Under Effect Curve (AUE) From 0-1 Hour37.8 hrs*mmStandard Deviation 1.82
EMBEDADrug Liking: Area Under Effect Curve (AUE) From 0-1 Hour43.1 hrs*mmStandard Deviation 6.11
MorphineDrug Liking: Area Under Effect Curve (AUE) From 0-1 Hour51.8 hrs*mmStandard Deviation 10.12
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-11.8, -6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000695% CI: [2.3, 8.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [11.2, 17]Mixed Models Analysis
Secondary

Drug Liking: Area Under Effect Curve (AUE) From 0-24 Hours

Drug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDrug Liking: Area Under Effect Curve (AUE) From 0-24 Hours1192.1 hrs*mmStandard Deviation 29.73
EMBEDADrug Liking: Area Under Effect Curve (AUE) From 0-24 Hours1263.0 hrs*mmStandard Deviation 101.88
MorphineDrug Liking: Area Under Effect Curve (AUE) From 0-24 Hours1348.2 hrs*mmStandard Deviation 174.53
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.001195% CI: [-136.5, -35.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.007195% CI: [19.7, 120]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [105.7, 206.3]Mixed Models Analysis
Secondary

Drug Liking: Area Under Effect Curve (AUE) From 0-4 Hours

Drug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).

Time frame: 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDrug Liking: Area Under Effect Curve (AUE) From 0-4 Hours188.6 hrs*mmStandard Deviation 7.56
EMBEDADrug Liking: Area Under Effect Curve (AUE) From 0-4 Hours217.9 hrs*mmStandard Deviation 24.72
MorphineDrug Liking: Area Under Effect Curve (AUE) From 0-4 Hours265.6 hrs*mmStandard Deviation 44.44
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-62, -35.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [15.8, 42.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [64.5, 91]Mixed Models Analysis
Secondary

Drug Liking: Area Under Effect Curve (AUE) From 0-8 Hours

Drug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDrug Liking: Area Under Effect Curve (AUE) From 0-8 Hours390.3 hrs*mmStandard Deviation 15.19
EMBEDADrug Liking: Area Under Effect Curve (AUE) From 0-8 Hours447.3 hrs*mmStandard Deviation 60.82
MorphineDrug Liking: Area Under Effect Curve (AUE) From 0-8 Hours514.4 hrs*mmStandard Deviation 87.1
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-95, -42.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [30.1, 82.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [98.7, 151.5]Mixed Models Analysis
Secondary

Drug Liking: Time to Maximum (Peak) Effect (TEmax)

Drug liking assesses the degree that a participant likes a drug effect at the time the question is being asked (that is, at the moment). It is scored using a 100 mm bipolar VAS anchored in the center with a neutral anchor of neither like nor dislike (score of 50 mm), on the left with strong disliking (score of 0 mm) and on the right with strong liking (score of 100 mm). TEmax = Time to maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboDrug Liking: Time to Maximum (Peak) Effect (TEmax)5.8 hrsStandard Deviation 6.83
EMBEDADrug Liking: Time to Maximum (Peak) Effect (TEmax)4.8 hrsStandard Deviation 5.74
MorphineDrug Liking: Time to Maximum (Peak) Effect (TEmax)2.7 hrsStandard Deviation 2.63
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.125495% CI: [-0.6, 4.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.459295% CI: [-3.6, 1.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.025195% CI: [-5.6, -0.4]Mixed Models Analysis
Secondary

Feel Sick: Area Under Effect Curve (AUE) From 0-12 Hours

Feel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboFeel Sick: Area Under Effect Curve (AUE) From 0-12 Hours2.3 hrs*mmStandard Deviation 8.53
EMBEDAFeel Sick: Area Under Effect Curve (AUE) From 0-12 Hours22.5 hrs*mmStandard Deviation 54.79
MorphineFeel Sick: Area Under Effect Curve (AUE) From 0-12 Hours80.9 hrs*mmStandard Deviation 113.22
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-88.5, -31.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.155695% CI: [-8, 48.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [52, 108.9]Mixed Models Analysis
Secondary

Feel Sick: Area Under Effect Curve (AUE) From 0-1 Hour

Feel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).

Time frame: 0.5 and 1 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboFeel Sick: Area Under Effect Curve (AUE) From 0-1 Hour0.3 hrs*mmStandard Deviation 1.09
EMBEDAFeel Sick: Area Under Effect Curve (AUE) From 0-1 Hour0.3 hrs*mmStandard Deviation 0.86
MorphineFeel Sick: Area Under Effect Curve (AUE) From 0-1 Hour1.0 hrs*mmStandard Deviation 3.5
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.1195% CI: [-1.7, 0.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.942195% CI: [-1, 0.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.126695% CI: [-0.2, 1.7]Mixed Models Analysis
Secondary

Feel Sick: Area Under Effect Curve (AUE) From 0-24 Hours

Feel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboFeel Sick: Area Under Effect Curve (AUE) From 0-24 Hours3.9 hrs*mmStandard Deviation 14.72
EMBEDAFeel Sick: Area Under Effect Curve (AUE) From 0-24 Hours31.1 hrs*mmStandard Deviation 73.35
MorphineFeel Sick: Area Under Effect Curve (AUE) From 0-24 Hours112.8 hrs*mmStandard Deviation 160.44
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000195% CI: [-124.8, -43.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.182695% CI: [-13.3, 68.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [70.6, 152.2]Mixed Models Analysis
Secondary

Feel Sick: Area Under Effect Curve (AUE) From 0-2 Hours

Feel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).

Time frame: 0.5, 1, 1.5 and 2 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboFeel Sick: Area Under Effect Curve (AUE) From 0-2 Hours0.6 hrs*mmStandard Deviation 1.75
EMBEDAFeel Sick: Area Under Effect Curve (AUE) From 0-2 Hours1.7 hrs*mmStandard Deviation 4.25
MorphineFeel Sick: Area Under Effect Curve (AUE) From 0-2 Hours4.2 hrs*mmStandard Deviation 10.19
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.072395% CI: [-5.3, 0.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.451595% CI: [-1.7, 3.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.012195% CI: [0.8, 6.4]Mixed Models Analysis
Secondary

Feel Sick: Area Under Effect Curve (AUE) From 0-4 Hours

Feel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).

Time frame: 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboFeel Sick: Area Under Effect Curve (AUE) From 0-4 Hours1.0 hrs*mmStandard Deviation 3.22
EMBEDAFeel Sick: Area Under Effect Curve (AUE) From 0-4 Hours5.2 hrs*mmStandard Deviation 12.28
MorphineFeel Sick: Area Under Effect Curve (AUE) From 0-4 Hours16.1 hrs*mmStandard Deviation 28.88
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.005995% CI: [-18.7, -3.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.2895% CI: [-3.5, 11.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000295% CI: [7.5, 22.8]Mixed Models Analysis
Secondary

Feel Sick: Area Under Effect Curve (AUE) From 0-8 Hours

Feel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboFeel Sick: Area Under Effect Curve (AUE) From 0-8 Hours1.7 hrs*mmStandard Deviation 6.27
EMBEDAFeel Sick: Area Under Effect Curve (AUE) From 0-8 Hours14.8 hrs*mmStandard Deviation 35.83
MorphineFeel Sick: Area Under Effect Curve (AUE) From 0-8 Hours50.7 hrs*mmStandard Deviation 72.35
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000195% CI: [-54.8, -18.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.148895% CI: [-4.8, 31.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [31.8, 67.9]Mixed Models Analysis
Secondary

Feel Sick: Peak Effect (Emax)

Feel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboFeel Sick: Peak Effect (Emax)0.7 mmStandard Deviation 1.96
EMBEDAFeel Sick: Peak Effect (Emax)4.9 mmStandard Deviation 11.06
MorphineFeel Sick: Peak Effect (Emax)16.4 mmStandard Deviation 17.38
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-16.4, -7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.081195% CI: [-0.5, 8.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [11.1, 20.6]Mixed Models Analysis
Secondary

Feel Sick: Time to Maximum (Peak) Effect (TEmax)

Feel sick VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboFeel Sick: Time to Maximum (Peak) Effect (TEmax)0.9 hrsStandard Deviation 2
EMBEDAFeel Sick: Time to Maximum (Peak) Effect (TEmax)1.8 hrsStandard Deviation 2.77
MorphineFeel Sick: Time to Maximum (Peak) Effect (TEmax)4.3 hrsStandard Deviation 3.45
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000795% CI: [-3.8, -1.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.163195% CI: [-0.4, 2.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [2.1, 4.8]Mixed Models Analysis
Secondary

Good Effects: Area Under Effect Curve (AUE) From 0-12 Hours

Good effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboGood Effects: Area Under Effect Curve (AUE) From 0-12 Hours7.8 hrs*mmStandard Deviation 28.24
EMBEDAGood Effects: Area Under Effect Curve (AUE) From 0-12 Hours174.6 hrs*mmStandard Deviation 153.23
MorphineGood Effects: Area Under Effect Curve (AUE) From 0-12 Hours417.4 hrs*mmStandard Deviation 158.39
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-302, -187.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [109.5, 223.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [354.3, 468.6]Mixed Models Analysis
Secondary

Good Effects: Area Under Effect Curve (AUE) From 0-1 Hour

Good effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).

Time frame: 0.5 and 1 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboGood Effects: Area Under Effect Curve (AUE) From 0-1 Hour0.8 hrs*mmStandard Deviation 2.47
EMBEDAGood Effects: Area Under Effect Curve (AUE) From 0-1 Hour12.2 hrs*mmStandard Deviation 13.74
MorphineGood Effects: Area Under Effect Curve (AUE) From 0-1 Hour27.2 hrs*mmStandard Deviation 17.64
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-20.3, -10.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [6.3, 16.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [21.5, 31.5]Mixed Models Analysis
Secondary

Good Effects: Area Under Effect Curve (AUE) From 0-24 Hours

Good effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboGood Effects: Area Under Effect Curve (AUE) From 0-24 Hours10.2 hrs*mmStandard Deviation 34.73
EMBEDAGood Effects: Area Under Effect Curve (AUE) From 0-24 Hours196.0 hrs*mmStandard Deviation 176.48
MorphineGood Effects: Area Under Effect Curve (AUE) From 0-24 Hours503.8 hrs*mmStandard Deviation 223.88
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-384.5, -235.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [110.8, 259.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [420.6, 569.7]Mixed Models Analysis
Secondary

Good Effects: Area Under Effect Curve (AUE) From 0-2 Hours

Good effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).

Time frame: 0.5, 1, 1.5 and 2 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboGood Effects: Area Under Effect Curve (AUE) From 0-2 Hours1.8 hrs*mmStandard Deviation 6.69
EMBEDAGood Effects: Area Under Effect Curve (AUE) From 0-2 Hours30.4 hrs*mmStandard Deviation 29.84
MorphineGood Effects: Area Under Effect Curve (AUE) From 0-2 Hours77.4 hrs*mmStandard Deviation 38.39
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-59.5, -35.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [16.5, 40.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [64.2, 87.8]Mixed Models Analysis
Secondary

Good Effects: Area Under Effect Curve (AUE) From 0-4 Hours

Good effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).

Time frame: 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboGood Effects: Area Under Effect Curve (AUE) From 0-4 Hours3.1 hrs*mmStandard Deviation 12.35
EMBEDAGood Effects: Area Under Effect Curve (AUE) From 0-4 Hours70.5 hrs*mmStandard Deviation 58.34
MorphineGood Effects: Area Under Effect Curve (AUE) From 0-4 Hours178.5 hrs*mmStandard Deviation 73.28
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-132.9, -85.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [43.5, 90.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [152.6, 199.9]Mixed Models Analysis
Secondary

Good Effects: Area Under Effect Curve (AUE) From 0-8 Hours

Good effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboGood Effects: Area Under Effect Curve (AUE) From 0-8 Hours6.2 hrs*mmStandard Deviation 22.44
EMBEDAGood Effects: Area Under Effect Curve (AUE) From 0-8 Hours141.2 hrs*mmStandard Deviation 120.31
MorphineGood Effects: Area Under Effect Curve (AUE) From 0-8 Hours330.0 hrs*mmStandard Deviation 122.85
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-234.2, -147.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [91.5, 178]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [282.1, 368.9]Mixed Models Analysis
Secondary

Good Effects: Peak Effect (Emax)

Good effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboGood Effects: Peak Effect (Emax)1.8 mmStandard Deviation 5.38
EMBEDAGood Effects: Peak Effect (Emax)32.6 mmStandard Deviation 23.74
MorphineGood Effects: Peak Effect (Emax)63.0 mmStandard Deviation 20.71
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-38.7, -22.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [22.6, 39]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [53.1, 69.5]Mixed Models Analysis
Secondary

Good Effects: Time to Maximum (Peak) Effect (TEmax)

Good effects VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboGood Effects: Time to Maximum (Peak) Effect (TEmax)0.7 hrsStandard Deviation 0.99
EMBEDAGood Effects: Time to Maximum (Peak) Effect (TEmax)2.5 hrsStandard Deviation 2.13
MorphineGood Effects: Time to Maximum (Peak) Effect (TEmax)2.6 hrsStandard Deviation 2.47
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.867195% CI: [-1, 0.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000195% CI: [0.9, 2.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [1, 2.8]Mixed Models Analysis
Secondary

High: Area Under Effect Curve (AUE) From 0-12 Hours

High VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboHigh: Area Under Effect Curve (AUE) From 0-12 Hours8.1 hrs*mmStandard Deviation 28.8
EMBEDAHigh: Area Under Effect Curve (AUE) From 0-12 Hours160.7 hrs*mmStandard Deviation 129.72
MorphineHigh: Area Under Effect Curve (AUE) From 0-12 Hours412.3 hrs*mmStandard Deviation 142.08
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-301.5, -204.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [103.5, 200.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [356.4, 453.3]Mixed Models Analysis
Secondary

High: Area Under Effect Curve (AUE) From 0-1 Hour

High VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).

Time frame: 0.5 and 1 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboHigh: Area Under Effect Curve (AUE) From 0-1 Hour0.9 hrs*mmStandard Deviation 2.87
EMBEDAHigh: Area Under Effect Curve (AUE) From 0-1 Hour10.3 hrs*mmStandard Deviation 12.26
MorphineHigh: Area Under Effect Curve (AUE) From 0-1 Hour25.5 hrs*mmStandard Deviation 16.26
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-19.9, -11]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [4.8, 13.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [20.3, 29.1]Mixed Models Analysis
Secondary

High: Area Under Effect Curve (AUE) From 0-24 Hours

High VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboHigh: Area Under Effect Curve (AUE) From 0-24 Hours10.7 hrs*mmStandard Deviation 35.41
EMBEDAHigh: Area Under Effect Curve (AUE) From 0-24 Hours180.3 hrs*mmStandard Deviation 149.07
MorphineHigh: Area Under Effect Curve (AUE) From 0-24 Hours485.4 hrs*mmStandard Deviation 204.51
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-370.9, -242.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [104.7, 232.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [411.3, 539.6]Mixed Models Analysis
Secondary

High: Area Under Effect Curve (AUE) From 0-4 Hours

High VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).

Time frame: 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboHigh: Area Under Effect Curve (AUE) From 0-4 Hours3.4 hrs*mmStandard Deviation 13.28
EMBEDAHigh: Area Under Effect Curve (AUE) From 0-4 Hours63.6 hrs*mmStandard Deviation 53.04
MorphineHigh: Area Under Effect Curve (AUE) From 0-4 Hours178.9 hrs*mmStandard Deviation 64.56
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-136.5, -95.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [39.3, 80.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [155.4, 196.2]Mixed Models Analysis
Secondary

High: Area Under Effect Curve (AUE) From 0-8 Hours

High VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboHigh: Area Under Effect Curve (AUE) From 0-8 Hours6.5 hrs*mmStandard Deviation 23.15
EMBEDAHigh: Area Under Effect Curve (AUE) From 0-8 Hours129.5 hrs*mmStandard Deviation 101.43
MorphineHigh: Area Under Effect Curve (AUE) From 0-8 Hours330.5 hrs*mmStandard Deviation 109.02
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-239, -165.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [85.7, 159.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [287.7, 361.5]Mixed Models Analysis
Secondary

High: Time to Maximum (Peak) Effect (TEmax)

High VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboHigh: Time to Maximum (Peak) Effect (TEmax)0.8 hrsStandard Deviation 0.99
EMBEDAHigh: Time to Maximum (Peak) Effect (TEmax)2.7 hrsStandard Deviation 1.94
MorphineHigh: Time to Maximum (Peak) Effect (TEmax)2.5 hrsStandard Deviation 1.94
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.560795% CI: [-0.6, 1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [1.2, 2.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [1, 2.6]Mixed Models Analysis
Secondary

Maximum Observed Plasma Concentration (Cmax) of Morphine

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboMaximum Observed Plasma Concentration (Cmax) of Morphine79308.6 picogram/milliliter (pg/mL)Standard Deviation 31555.86
EMBEDAMaximum Observed Plasma Concentration (Cmax) of Morphine103621 picogram/milliliter (pg/mL)Standard Deviation 34005.3
Comparison: Natural log transformed Cmax was analyzed using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000190% CI: [0.68, 0.83]Mixed Models Analysis
Secondary

Maximum Observed Plasma Concentration (Cmax) of Naltrexone

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboMaximum Observed Plasma Concentration (Cmax) of Naltrexone978.83 pg/mLStandard Deviation 713.748
Secondary

Maximum Observed Plasma Concentration (Cmax) of Naltrexone Metabolite (6-beta-naltrexol)

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboMaximum Observed Plasma Concentration (Cmax) of Naltrexone Metabolite (6-beta-naltrexol)6226.3 pg/mLStandard Deviation 2158.29
Secondary

Nausea: Area Under Effect Curve (AUE) From 0-12 Hours

Nausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboNausea: Area Under Effect Curve (AUE) From 0-12 Hours2.2 hrs*mmStandard Deviation 7.42
EMBEDANausea: Area Under Effect Curve (AUE) From 0-12 Hours25.2 hrs*mmStandard Deviation 61.13
MorphineNausea: Area Under Effect Curve (AUE) From 0-12 Hours76.9 hrs*mmStandard Deviation 119.64
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000695% CI: [-83.2, -24]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.120795% CI: [-6.3, 52.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [47.3, 106.4]Mixed Models Analysis
Secondary

Nausea: Area Under Effect Curve (AUE) From 0-1 Hour

Nausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).

Time frame: Pre-dose, 0.5 and 1 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboNausea: Area Under Effect Curve (AUE) From 0-1 Hour0.4 hrs*mmStandard Deviation 1.28
EMBEDANausea: Area Under Effect Curve (AUE) From 0-1 Hour0.5 hrs*mmStandard Deviation 1.16
MorphineNausea: Area Under Effect Curve (AUE) From 0-1 Hour0.8 hrs*mmStandard Deviation 2.25
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.374995% CI: [-0.9, 0.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.793995% CI: [-0.5, 0.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.252495% CI: [-0.3, 1]Mixed Models Analysis
Secondary

Nausea: Area Under Effect Curve (AUE) From 0-24 Hours

Nausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboNausea: Area Under Effect Curve (AUE) From 0-24 Hours3.8 hrs*mmStandard Deviation 13.69
EMBEDANausea: Area Under Effect Curve (AUE) From 0-24 Hours35.3 hrs*mmStandard Deviation 76.53
MorphineNausea: Area Under Effect Curve (AUE) From 0-24 Hours108.3 hrs*mmStandard Deviation 171.22
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000895% CI: [-118.6, -33]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.14195% CI: [-10.8, 74.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [64.9, 150.5]Mixed Models Analysis
Secondary

Nausea: Area Under Effect Curve (AUE) From 0-2 Hours

Nausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).

Time frame: Pre-dose, 0.5, 1, 1.5 and 2 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboNausea: Area Under Effect Curve (AUE) From 0-2 Hours0.7 hrs*mmStandard Deviation 1.73
EMBEDANausea: Area Under Effect Curve (AUE) From 0-2 Hours2.1 hrs*mmStandard Deviation 4.12
MorphineNausea: Area Under Effect Curve (AUE) From 0-2 Hours3.7 hrs*mmStandard Deviation 8.14
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.121195% CI: [-3.8, 0.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.199795% CI: [-0.7, 3.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.005795% CI: [0.9, 5.2]Mixed Models Analysis
Secondary

Nausea: Area Under Effect Curve (AUE) From 0-4 Hours

Nausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboNausea: Area Under Effect Curve (AUE) From 0-4 Hours1.0 hrs*mmStandard Deviation 2.78
EMBEDANausea: Area Under Effect Curve (AUE) From 0-4 Hours5.5 hrs*mmStandard Deviation 11.3
MorphineNausea: Area Under Effect Curve (AUE) From 0-4 Hours15.3 hrs*mmStandard Deviation 26.61
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.005795% CI: [-16.7, -3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.191895% CI: [-2.3, 11.4]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [7.5, 21.2]Mixed Models Analysis
Secondary

Nausea: Area Under Effect Curve (AUE) From 0-8 Hours

Nausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboNausea: Area Under Effect Curve (AUE) From 0-8 Hours1.6 hrs*mmStandard Deviation 5.17
EMBEDANausea: Area Under Effect Curve (AUE) From 0-8 Hours16.5 hrs*mmStandard Deviation 39.86
MorphineNausea: Area Under Effect Curve (AUE) From 0-8 Hours47.1 hrs*mmStandard Deviation 75.02
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.001395% CI: [-50.2, -12.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.113695% CI: [-3.7, 33.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [27.8, 65.1]Mixed Models Analysis
Secondary

Nausea: Peak Effect (Emax)

Nausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboNausea: Peak Effect (Emax)0.8 mmStandard Deviation 2.41
EMBEDANausea: Peak Effect (Emax)5.2 mmStandard Deviation 10.41
MorphineNausea: Peak Effect (Emax)14.9 mmStandard Deviation 17.14
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-14.4, -5.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.052995% CI: [-0.1, 8.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [9.9, 18.7]Mixed Models Analysis
Secondary

Nausea: Time to Maximum (Peak) Effect (TEmax)

Nausea VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboNausea: Time to Maximum (Peak) Effect (TEmax)1.4 hrsStandard Deviation 4.17
EMBEDANausea: Time to Maximum (Peak) Effect (TEmax)2.5 hrsStandard Deviation 4.69
MorphineNausea: Time to Maximum (Peak) Effect (TEmax)4.3 hrsStandard Deviation 3.52
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.080695% CI: [-3.8, 0.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.276995% CI: [-0.9, 3.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.005695% CI: [0.9, 5]Mixed Models Analysis
Secondary

Overall Drug Liking Effect at 24 Hours

Overall drug liking VAS assesses the participant's global perception of drug liking (that is, effects over the whole course of the drug experience including any carryover effects). A 100 mm VAS is used to assess response based on a score ranging from 0 mm to 100 mm (0 mm = strong disliking, 50 mm= neither like nor dislike, and 100 mm= strong liking).

Time frame: 24 hrs post dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboOverall Drug Liking Effect at 24 Hours50.6 mmStandard Deviation 3.06
EMBEDAOverall Drug Liking Effect at 24 Hours58.8 mmStandard Deviation 17.68
MorphineOverall Drug Liking Effect at 24 Hours69.8 mmStandard Deviation 20.23
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.002995% CI: [-18, -4]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.028695% CI: [1, 15]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [12, 27]Mixed Models Analysis
Secondary

Pupillometry: Area Under Effect Curve (AUE) From 0-12 Hours

Pupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboPupillometry: Area Under Effect Curve (AUE) From 0-12 Hours0.7 hrs*mmStandard Deviation 4.78
EMBEDAPupillometry: Area Under Effect Curve (AUE) From 0-12 Hours-20.8 hrs*mmStandard Deviation 6.8
MorphinePupillometry: Area Under Effect Curve (AUE) From 0-12 Hours-32.6 hrs*mmStandard Deviation 7.95
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [8.7, 14.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-24.5, -18.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-36.2, -30.2]Mixed Models Analysis
Secondary

Pupillometry: Area Under Effect Curve (AUE) From 0-1 Hour

Pupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr (0-1).

Time frame: Pre-dose, 0.5 and 1 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboPupillometry: Area Under Effect Curve (AUE) From 0-1 Hour0.0 hrs*mmStandard Deviation 0.4
EMBEDAPupillometry: Area Under Effect Curve (AUE) From 0-1 Hour-0.5 hrs*mmStandard Deviation 0.38
MorphinePupillometry: Area Under Effect Curve (AUE) From 0-1 Hour-1.2 hrs*mmStandard Deviation 0.6
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [0.5, 0.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-0.8, -0.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-1.5, -1]Mixed Models Analysis
Secondary

Pupillometry: Area Under Effect Curve (AUE) From 0-24 Hours

Pupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboPupillometry: Area Under Effect Curve (AUE) From 0-24 Hours3.5 hrs*mmStandard Deviation 9.19
EMBEDAPupillometry: Area Under Effect Curve (AUE) From 0-24 Hours-34.2 hrs*mmStandard Deviation 13.96
MorphinePupillometry: Area Under Effect Curve (AUE) From 0-24 Hours-51.8 hrs*mmStandard Deviation 15.26
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [11.6, 23.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-43.6, -31.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-61.1, -49.3]Mixed Models Analysis
Secondary

Pupillometry: Area Under Effect Curve (AUE) From 0-2 Hours

Pupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).

Time frame: Pre-dose, 0.5, 1, 1.5 and 2 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboPupillometry: Area Under Effect Curve (AUE) From 0-2 Hours0.0 hrs*mmStandard Deviation 0.87
EMBEDAPupillometry: Area Under Effect Curve (AUE) From 0-2 Hours-1.7 hrs*mmStandard Deviation 1.07
MorphinePupillometry: Area Under Effect Curve (AUE) From 0-2 Hours-4.1 hrs*mmStandard Deviation 1.31
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [1.9, 2.9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-2.2, -1.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-4.6, -3.6]Mixed Models Analysis
Secondary

Pupillometry: Area Under Effect Curve (AUE) From 0-4 Hours

Pupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboPupillometry: Area Under Effect Curve (AUE) From 0-4 Hours-0.1 hrs*mmStandard Deviation 1.67
EMBEDAPupillometry: Area Under Effect Curve (AUE) From 0-4 Hours-5.4 hrs*mmStandard Deviation 2.29
MorphinePupillometry: Area Under Effect Curve (AUE) From 0-4 Hours-10.3 hrs*mmStandard Deviation 2.58
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [3.9, 5.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-6.3, -4.3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-11.1, -9.2]Mixed Models Analysis
Secondary

Pupillometry: Area Under Effect Curve (AUE) From 0-8 Hours

Pupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboPupillometry: Area Under Effect Curve (AUE) From 0-8 Hours0.0 hrs*mmStandard Deviation 3.25
EMBEDAPupillometry: Area Under Effect Curve (AUE) From 0-8 Hours-13.8 hrs*mmStandard Deviation 4.36
MorphinePupillometry: Area Under Effect Curve (AUE) From 0-8 Hours-22.5 hrs*mmStandard Deviation 5.35
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [6.6, 10.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-15.9, -11.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-24.5, -20.4]Mixed Models Analysis
Secondary

Pupillometry: Peak Effect (Emax)

Pupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. Emax = Smallest post-dose pupil size.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboPupillometry: Peak Effect (Emax)5.6 mmStandard Deviation 0.76
EMBEDAPupillometry: Peak Effect (Emax)3.9 mmStandard Deviation 0.71
MorphinePupillometry: Peak Effect (Emax)2.8 mmStandard Deviation 0.74
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [0.8, 1.4]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-2.1, -1.5]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-3.2, -2.6]Mixed Models Analysis
Secondary

Pupillometry: Time to Maximum (Peak) Effect (TEmax)

Pupillometry assessments measured change in pupil size (miosis) as an indicator of opioid pharmacological properties. The same eye for each participant was used for all measurements during the study. Participants had the size of their pupil measured (in mm) using a pupillometer. Measurements were made in a dimly lit (mesopic) room with controlled lighting conditions. TEmax = Time to smallest post-dose pupil size.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboPupillometry: Time to Maximum (Peak) Effect (TEmax)4.8 hrsStandard Deviation 6.83
EMBEDAPupillometry: Time to Maximum (Peak) Effect (TEmax)5.6 hrsStandard Deviation 2.26
MorphinePupillometry: Time to Maximum (Peak) Effect (TEmax)3.2 hrsStandard Deviation 1.64
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.026295% CI: [0.3, 4.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.41895% CI: [-1.3, 3]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.147995% CI: [-3.7, 0.6]Mixed Models Analysis
Secondary

Sleepy: Area Under Effect Curve (AUE) From 0-12 Hours

Sleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-12) = Area under the effect versus time curve from time 0 to 12 hrs (0-12).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8 and 12 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboSleepy: Area Under Effect Curve (AUE) From 0-12 Hours5.3 hrs*mmStandard Deviation 13.05
EMBEDASleepy: Area Under Effect Curve (AUE) From 0-12 Hours138.5 hrs*mmStandard Deviation 140.93
MorphineSleepy: Area Under Effect Curve (AUE) From 0-12 Hours287.5 hrs*mmStandard Deviation 196.29
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-205.1, -89.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [76.5, 191.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [223.7, 339.2]Mixed Models Analysis
Secondary

Sleepy: Area Under Effect Curve (AUE) From 0-1 Hour

Sleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-1) = Area under the effect versus time curve from time 0 to 1 hr(0-1).

Time frame: 0.5 and 1 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboSleepy: Area Under Effect Curve (AUE) From 0-1 Hour0.4 hrs*mmStandard Deviation 1.3
EMBEDASleepy: Area Under Effect Curve (AUE) From 0-1 Hour2.4 hrs*mmStandard Deviation 6.57
MorphineSleepy: Area Under Effect Curve (AUE) From 0-1 Hour3.6 hrs*mmStandard Deviation 5.13
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.211795% CI: [-3.1, 0.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.034595% CI: [0.2, 4]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.001195% CI: [1.4, 5.2]Mixed Models Analysis
Secondary

Sleepy: Area Under Effect Curve (AUE) From 0-24 Hours

Sleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-24) = Area under the effect versus time curve from time 0 to 24 hrs (0-24).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboSleepy: Area Under Effect Curve (AUE) From 0-24 Hours7.6 hrs*mmStandard Deviation 21.06
EMBEDASleepy: Area Under Effect Curve (AUE) From 0-24 Hours175.5 hrs*mmStandard Deviation 175.65
MorphineSleepy: Area Under Effect Curve (AUE) From 0-24 Hours378.7 hrs*mmStandard Deviation 267.76
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-279.3, -123.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [91.5, 246.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [292.7, 448.4]Mixed Models Analysis
Secondary

Sleepy: Area Under Effect Curve (AUE) From 0-2 Hours

Sleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-2) = Area under the effect versus time curve from time 0 to 2 hrs (0-2).

Time frame: 0.5, 1, 1.5 and 2 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboSleepy: Area Under Effect Curve (AUE) From 0-2 Hours0.7 hrs*mmStandard Deviation 1.91
EMBEDASleepy: Area Under Effect Curve (AUE) From 0-2 Hours9.1 hrs*mmStandard Deviation 12.63
MorphineSleepy: Area Under Effect Curve (AUE) From 0-2 Hours21.3 hrs*mmStandard Deviation 21.28
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000295% CI: [-18.4, -6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.008195% CI: [2.3, 14.6]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [14.4, 26.8]Mixed Models Analysis
Secondary

Sleepy: Area Under Effect Curve (AUE) From 0-4 Hours

Sleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-4) = Area under the effect versus time curve from time 0 to 4 hrs (0-4).

Time frame: 0.5, 1, 1.5, 2, 3 and 4 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboSleepy: Area Under Effect Curve (AUE) From 0-4 Hours1.7 hrs*mmStandard Deviation 4.31
EMBEDASleepy: Area Under Effect Curve (AUE) From 0-4 Hours35.9 hrs*mmStandard Deviation 38.78
MorphineSleepy: Area Under Effect Curve (AUE) From 0-4 Hours74.2 hrs*mmStandard Deviation 61.41
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-55.6, -20.8]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.000295% CI: [17, 51.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [55.2, 90]Mixed Models Analysis
Secondary

Sleepy: Area Under Effect Curve (AUE) From 0-8 Hours

Sleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). AUE (0-8) = Area under the effect versus time curve from time 0 to 8 hrs (0-8).

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboSleepy: Area Under Effect Curve (AUE) From 0-8 Hours4.2 hrs*mmStandard Deviation 10.15
EMBEDASleepy: Area Under Effect Curve (AUE) From 0-8 Hours97.6 hrs*mmStandard Deviation 103.13
MorphineSleepy: Area Under Effect Curve (AUE) From 0-8 Hours199.2 hrs*mmStandard Deviation 141.96
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-142.2, -58.4]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [52.1, 135.7]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [152.3, 236.1]Mixed Models Analysis
Secondary

Sleepy: Peak Effect (Emax)

Sleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). Emax = Maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboSleepy: Peak Effect (Emax)1.5 mmStandard Deviation 3.71
EMBEDASleepy: Peak Effect (Emax)27.1 mmStandard Deviation 22.75
MorphineSleepy: Peak Effect (Emax)43.9 mmStandard Deviation 21.93
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [-23.8, -9]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [18.3, 33.1]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [34.7, 49.5]Mixed Models Analysis
Secondary

Sleepy: Time to Maximum (Peak) Effect (TEmax)

Sleepy VAS assesses the effect experienced by the participant on a 100 mm unipolar VAS, where responses are unidirectional and range from a response of 'none' (score of 0 mm) to 'extremely' (score of 100 mm). TEmax = Time to maximum observed score.

Time frame: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboSleepy: Time to Maximum (Peak) Effect (TEmax)1.1 hrsStandard Deviation 2.2
EMBEDASleepy: Time to Maximum (Peak) Effect (TEmax)4.0 hrsStandard Deviation 2.94
MorphineSleepy: Time to Maximum (Peak) Effect (TEmax)5.3 hrsStandard Deviation 2.81
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.025395% CI: [-2.6, -0.2]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [1.6, 4]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [3, 5.4]Mixed Models Analysis
Secondary

Take Drug Again Effect at 24 Hours

Take drug again VAS is a subjective assessment of the degree to which a participant would desire to take the drug again if given the opportunity. It is presented on a 100 mm VAS with score ranging from 0 mm to 100 mm (score of 0 mm = definitely would not, 50 mm = do not care, and 100 mm = definitely would).

Time frame: 24 hrs post dose

Population: The evaluable population included all randomized participants who completed all 3 treatment periods of the treatment phase, contributed post-dose PD data from each period and did not have major protocol violations.

ArmMeasureValue (MEAN)Dispersion
PlaceboTake Drug Again Effect at 24 Hours49.8 mmStandard Deviation 4.41
EMBEDATake Drug Again Effect at 24 Hours58.0 mmStandard Deviation 21.9
MorphineTake Drug Again Effect at 24 Hours70.6 mmStandard Deviation 24.53
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.00595% CI: [-22, -4]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.0795% CI: [-1, 17]Mixed Models Analysis
Comparison: LS mean, 95% CI, and unadjusted p-value were calculated using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: <0.000195% CI: [12, 30]Mixed Models Analysis
Secondary

Time to Reach Maximum Observed Plasma Concentration (Tmax) of Morphine

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboTime to Reach Maximum Observed Plasma Concentration (Tmax) of Morphine0.9 hrsStandard Deviation 0.48
EMBEDATime to Reach Maximum Observed Plasma Concentration (Tmax) of Morphine0.7 hrsStandard Deviation 0.25
Comparison: Tmax was analyzed using linear mixed model with fixed effects for sequence, period and treatment, and a random effect for participant nested in sequence.p-value: 0.018190% CI: [0.07, 0.35]Mixed Models Analysis
Secondary

Time to Reach Maximum Observed Plasma Concentration (Tmax) of Naltrexone

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboTime to Reach Maximum Observed Plasma Concentration (Tmax) of Naltrexone0.8 hrsStandard Deviation 0.32
Secondary

Time to Reach Maximum Observed Plasma Concentration (Tmax) of Naltrexone Metabolite (6-beta-naltrexol)

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hrs post-dose

Population: Safety population included all participants who received at least one dose of study drug in the Treatment Phase.

ArmMeasureValue (MEAN)Dispersion
PlaceboTime to Reach Maximum Observed Plasma Concentration (Tmax) of Naltrexone Metabolite (6-beta-naltrexol)1.0 hrsStandard Deviation 0.61

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026