CI

At a glance

ClinicalIndex Comparison Record
Phase 4Completed· 785 enrolled
Drug / intervention
Transmucosal Buprenorphine +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04995029
NCT04995029Phase 4Completed

A Randomised, Double-Blind Study Comparing 2 Maintenance Dosing Regimens of Buprenorphine Extended-Release Subcutaneous Injection (RBP-6000) in Treatment-Seeking Adult Participants With Opioid Use Disorder and High-risk Opioid Use

Indivior Inc.·interventional·Posted Aug 6, 2021·Updated Feb 6, 2026

In Brief

A Phase 4 clinical trial evaluating Transmucosal Buprenorphine and Extended-release Buprenorphine for Moderate to Severe Opioid-use Disorder. Completed, enrolled 785 participants across 29 sites in 2 countries.

Detailed Summary

The primary objective of the induction phase of the study is to compare treatment retention of participants following rapid induction or standard of care (SoC) induction onto extended-release buprenorphine. The primary objective of the maintenance phase is to compare the efficacy of 100 mg and 300 mg maintenance doses of extended-release buprenorphine administered every 4 weeks.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesCanada, United States
Collaborators--

Timeline

Phase 4CompletedFinished
20222023202420252026
First PostedAug 6, 2021
Enrollment StartOct 26, 2021
Primary CompletionJun 26, 2024
TodayJul 2, 2026
Enrollment to primary: 2.7 yearsPosted 4.9 years ago

Interventions

Transmucosal Buprenorphinedrug

Transmucosal (TM) buprenorphine as selected by the Investigator per local prescribing guidelines, administered either under the tongue (sublingual) or between the gum and cheek (buccal)

Extended-release Buprenorphinedrug

Administered by subcutaneous injection