Identifying Optimal Buprenorphine Dosing for Opioid Use Disorder Treatment and Prevention of Overdose
Optimal Bup
Randomized Clinical Trial of a 16 mg vs. 24 mg Maintenance Daily Dose of Buprenorphine to Increase Retention in Treatment Among People With Opioid Use Disorder
1 other identifier
interventional
250
1 country
1
Brief Summary
The investigators aim to test the effectiveness of a high maintenance daily dose of buprenorphine (24 mg) for improving outcomes among patients who used fentanyl compared to the standard daily dose (16 mg). The main question it aims to answer is: will patients who are randomly assigned to the high 24 mg maintenance dose, as compared to patients randomly assigned to the standard 16 mg maintenance dose, have improved retention in buprenorphine treatment (primary outcome), improved treatment response based on use of non-prescribed opioids (secondary outcome), decreased opioid cravings (secondary outcome), and decreased risk of fatal and non-fatal opioid overdose (exploratory outcome).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Jan 2025
Typical duration for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 6, 2024
CompletedFirst Posted
Study publicly available on registry
March 18, 2024
CompletedStudy Start
First participant enrolled
January 6, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
November 1, 2027
October 23, 2025
October 1, 2025
2.6 years
March 6, 2024
October 21, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Treatment Engagement
The primary outcome is the percentage of participants retained in buprenorphine treatment. Participants will be classified as retained in buprenorphine treatment at six months post- randomization if (1) the study site data indicate that they remained engaged in treatment or (2) the PDMP suggest that they continued treatment elsewhere and have not had a gap of more than 27 days in medication on-hand based on fill dates and days' supply.
six months post-randomization
Secondary Outcomes (2)
Control of Opioid Cravings
six months post-randomization
Treatment response based on use of non-prescribed opioids
six months post-randomization
Other Outcomes (1)
Rate of Non-fatal or Fatal Opioid Overdose
twelve months post-randomization
Study Arms (2)
High Maintenance Daily Dose (24mg)
EXPERIMENTALThe experimental intervention is a high daily maintenance dose of buprenorphine (24 mg) plus any usual clinical care the participant receives at the clinic. This high daily dose is the upper limit of the FDA-approved dose range and was selected based on preclinical studies, clinician anecdotes, case reports, and retrospective analyses suggesting improved effectiveness of higher buprenorphine doses among patients with a history of fentanyl use. Underlying pharmacodynamic principles support that the 24 mg daily dose of buprenorphine is likely to be well-tolerated, safe, and better control cravings among people with a history of fentanyl use.
Standard Maintenance Daily Dose (16mg)
ACTIVE COMPARATORThe control intervention is the FDA-recommended target daily maintenance dose of buprenorphine (16 mg) plus any usual clinical care the participant receives at the clinic.
Interventions
Buprenorphine in a highly effective treatment for opioid use disorder (OUD). Buprenorphine dose guidelines for OUD treatment were determined by clinical trials conducted in populations with a history of heroin use. However, fentanyl is changing the calculation of treatment, and optimal buprenorphine dosing for people who use fentanyl is unknown.
Eligibility Criteria
You may qualify if:
- English-speaking
- Age 18 years-old or older
- Identified by the treating physician as having moderate to severe opioid use disorder (OUD)
- Initiating or continuing buprenorphine for treatment of opioid use disorder
- History of fentanyl use (confirmed by fentanyl positive urine drug screen (UDS) at intake OR if on buprenorphine maintenance treatment fentanyl plus a positive UDS within the last month OR self- reported ongoing fentanyl use during treatment)
You may not qualify if:
- Previous enrollment in the trial
- Incarcerated or in police custody\*
- Pregnant
- Live outside of Rhode Island (RI)
- Unable to provide informed consent
- Allergy to Buprenorphine
- Concomitant medication use deemed to present potential for serious medication interaction by the treating clinician \*Participants that become incarcerated/or in police custody during the study will be withdrawn.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Rhode Island Hospitallead
- Brown Universitycollaborator
Study Sites (1)
Brown University
Providence, Rhode Island, 02912, United States
Related Publications (2)
Chambers LC, Hallowell BD, Zullo AR, Paiva TJ, Berk J, Gaither R, Hampson AJ, Beaudoin FL, Wightman RS. Buprenorphine Dose and Time to Discontinuation Among Patients With Opioid Use Disorder in the Era of Fentanyl. JAMA Netw Open. 2023 Sep 5;6(9):e2334540. doi: 10.1001/jamanetworkopen.2023.34540.
PMID: 37721749BACKGROUNDArmeni K, Chambers LC, Peachey A, Berk J, Langdon KJ, Peterson L, Beaudoin FL, Wightman RS. Randomised clinical trial of a 16 mg vs 24 mg maintenance daily dose of buprenorphine to increase retention in treatment among people with an opioid use disorder in Rhode Island: study protocol paper. BMJ Open. 2024 Nov 9;14(11):e085888. doi: 10.1136/bmjopen-2024-085888.
PMID: 39521460DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Epidemiology and Emergency Medicine
Study Record Dates
First Submitted
March 6, 2024
First Posted
March 18, 2024
Study Start
January 6, 2025
Primary Completion (Estimated)
August 1, 2027
Study Completion (Estimated)
November 1, 2027
Last Updated
October 23, 2025
Record last verified: 2025-10
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF
- Time Frame
- Deidentified data will be made available upon request
Deidentified data will be made available upon request in accordance with the policies and procedures of the Brown University and Rhode Island Department of Health Institutional Review Boards and collaborating state and local institutions