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A study to determine how the bodies of healthy study participants handle axelopran and oxycodone given as a combined tablet compared with given as separate tablets.

An Open-label, Randomized, Single-dose, 4-way Crossover Study to Assess the Relative Bioavailability of Axelopran and Oxycodone Administered as a Fixed-Dose Combination and as Individual Components to Healthy Subjects with a Naltrexone Block Under Fasting Conditions

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12614001152617
Enrollment
28
Registered
2014-10-31
Start date
2014-10-16
Completion date
2014-10-20
Last updated
2020-01-13

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

Conditions

None listed

Brief summary

The purpose of this study is to determine the pharmacokinetics (how the body absorbs the drug), safety, and tolerability of oxycodone and axelopran when given together and separately.

Interventions

The interventional product, axelopran 10mg, will be co-formulated with an oxycodone 20mg tablet and administered orally under fasting conditions. Both products will also be administered together but as separate tablets, and also as individual doses, so that study participants will each receive each of the 4 treatment options, separated by a week between dosing. In each Period, subjects will also receive co-treatment with naltrexone 50 mg orally (a single 50 mg dose 15 and 3 hours before and 9

The interventional product, axelopran 10mg, will be co-formulated with an oxycodone 20mg tablet and administered orally under fasting conditions. Both products will also be administered together but as separate tablets, and also as individual doses, so that study participants will each receive each of the 4 treatment options, separated by a week between dosing. In each Period, subjects will also receive co-treatment with naltrexone 50 mg orally (a single 50 mg dose 15 and 3 hours before and 9 and 21 hours after dosing with Study Treatment).

Sponsors

Theravance Biopharma R&D, Inc.
Lead SponsorCommercial sector/Industry

Study design

Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

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

Inclusion criteria

- healthy weight, BMI, medical history and on physical exam - females must not be pregnant and males and females must practice approved contraception during the study - screening lab assessments must have normal healthy results - able to comply with study requirements and give informed consent

Exclusion criteria

- history or evidence of severe allergic, or other disease as determined by the investigator to be of clinical significance - history of chronic obstructive pulmonary disease, asthma or reactive airway disease - history of, or current hypersensitivity to drugs - any condition which may affect drug absorption - recent participation in a trial of an investigational drug (or medical device) within 60 days (or 5 half-lives of the investigational drug, whichever is longer) prior to screening. - Unwilling to abstain from caffeine products or alcohol or strenuous exercise beginning 24 hours prior to admission on Day -1 until the final PK sample is collected for each period. - Consumption of grapefruit or grapefruit juice within 14 days prior to admission on Day -1. - Consumption of other fruit juices within 24 hours prior to admission to the unit on Day -1 of any period. - history of alcoholism or drug abuse - history of tobacco use within previous 6 months - Use of prescription or over-the-counter medications including herbals within 7 days (or14 days if the drug is a potent inducer or inhibitor of cytochrome P450 isoenzyme 3A4 or permeability glycoprotein 1, or five half-lives (whichever is longer) prior to Day -1 or requires continuous use during study participation, with the exception of routine vitamins or minerals, paracetamol (up to 1000 mg/day) if required, ibuprofen (up to 400 mg/day) if required, or ondansetron IV (up to 8 mg /day) if required. - Blood donors within 8 weeks prior to screening -abnormal ECG or family history of congenital long QT syndrome or family history of sudden death

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026