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Evaluation of Intranasal Naltrexone and Naloxone

Pharmacokinetic Evaluation of Intranasal Naltrexone and Naloxone Administered Separately and in Combination in Healthy Volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03851731
Enrollment
12
Registered
2019-02-22
Start date
2015-10-05
Completion date
2015-11-07
Last updated
2020-09-14

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

Conditions

Opioid-use Disorder

Brief summary

This study will be to determine the pharmacokinetics of naltrexone and naloxone when administered via intranasal separately and in combination in healthy volunteers.

Interventions

DRUGNaltrexone

Intranasal spray

DRUGNaloxone

Intranasal spray

DRUGNaltrexol

Intranasal spray

Sponsors

National Institute on Drug Abuse (NIDA)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Males and females 18 to 55 years of age, inclusive. * Provide written informed consent. * Body mass index (BMI) ranging from 18 to 30 kg/m2, inclusive. * Adequate venous access. * No clinically significant concurrent medical conditions determined by medical history, physical examination, clinical laboratory examination, vital signs, and 12-lead ECG. * Agree to use a reliable double-barrier method of birth control from the start of screening until one week after completing the study. Oral contraceptives are prohibited. * Agree not to ingest alcohol, drinks containing xanthine \>500 mg/day (e.g., Coca Cola®, tea, coffee, etc.), or grapefruit/grapefruit juice or participate in strenuous exercise 72 hours prior to admission through the last blood draw of the study.

Exclusion criteria

* Contact site for more information

Design outcomes

Primary

MeasureTime frameDescription
Pharmacokinetic parameter [maximum serum concentration - Cmax]12 daysThe primary endpoints of the study are the pharmacokinetic parameter, maximum serum concentration \[Cmax\], of naltrexone and naloxone when administered and in combination.
Pharmacokinetic parameter [area under the plasma concentration time curve - AUCO-t]12 daysThe primary endpoints of the study are the pharmacokinetic parameter, area under the plasma concentration time curve \[AUCO-t\] of naltrexone and naloxone when administered and in combination.
Pharmacokinetic parameter [area under the plasma concentration curve from zero to infinity - AUCO-inf]12 daysThe primary endpoints of the study are the pharmacokinetic parameter, area under the plasma concentration curve from zero to infinity \[AUCO-inf\] of naltrexone and naloxone when administered and in combination.

Secondary

MeasureTime frameDescription
Vital Sign - Blood pressure (systolic)12 daysTo assess and document blood pressure (systolic) before and after intranasal dosing
Adverse Events15 daysTo assess and document any adverse events measures
Electrocardiogram12 daysTwelve-lead ECGs performed according to standard procedures that will assess P wave, PR interval, QRS complex, ST segment, T wave and QT interval.
Vital Sign - Respiration Rate12 daysTo assess and document respiration rate before and after intranasal dosing
Vital Sign - Heart Rate12 daysTo assess and document heart rate before and after intranasal dosing
Vital Sign - Blood pressure (diastolic)12 daysTo assess and document blood pressure (diastolic) before and after intranasal dosing

Outcome results

None listed

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