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Pharmacokinetics, Safety, and Tolerability of Depot Buprenorphine at Three Different Molecular Weights in Treatment-Seeking Subjects With Opioid Use Disorder

A Single-Center, Randomized, Open-Label, Single-Dose Study to Evaluate the Pharmacokinetics, Safety, and Tolerability of Depot Buprenorphine (RBP-6000) Using Poly (DL-lactide-co-glycolide) Polymer of Two Different Molecular Weights (Low and High Molecular Weights as Test Treatments) in Comparison to Intermediate Molecular Weight (Reference Treatment) in Treatment-Seeking Subjects With Opioid Use Disorder

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02559973
Enrollment
47
Registered
2015-09-25
Start date
2015-09-30
Completion date
2016-03-31
Last updated
2017-01-31

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

Conditions

Opioid Use Disorder

Keywords

Buprenorphine, opioid use disorder

Brief summary

This is a single-center, randomized, open-label, single-dose, parallel-group study which will enroll and randomize approximately 48 subjects (to achieve 36 completers) with opioid use disorder (OUD) who are seeking treatment for OUD. The study includes both a Residential (Inpatient) and Non-Residential (Outpatient) Period.

Interventions

RBP-6000 uses buprenorphine in the ATRIGEL Delivery System. The single-syringe is prefilled with RBP-6000 containing 300 mg buprenorphine.

Subjects will be dose-stabilized on SUBOXONE sublingual film prior to administration of RBP-6000. SUBOXONE sublingual film will be administered beginning after the subject is experiencing signs and symptoms of withdrawal on Day -8 and continue until Day -1.

Sponsors

Indivior Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Currently meets DSM-5 criteria for moderate or severe opioid use disorder (OUD) * Is seeking treatment for OUD * Body mass index: ≥ 18.0 to ≤ 35.0 kg/m\^2 * Females: Female individuals of childbearing potential (defined as all women who are not surgically sterile or postmenopausal for at least 1 year prior to informed consent) must have a negative serum pregnancy test prior to enrollment and must agree to use a medically acceptable means of contraception from Screening through at least 6 months after the last dose of Investigational Medicinal Product (IMP). * Males: Male individuals with female partners of child-bearing potential must agree to use medically acceptable contraception after signing the informed consent form through at least 6 months after the last dose of IMP. Male individuals must also agree not to donate sperm during the study and for 6 months after receiving the last dose of IMP. * Have a normal electrocardiogram (ECG) or ECG with no clinically significant findings in the opinion of the Investigator or medically qualified sub-investigator at Screening and through pre-dose on Day 1. * Agree not to take any buprenorphine-containing products, other than those administered for the current study, throughout the duration of the study. * Willing to adhere to study procedures and provide written informed consent prior to start of any study procedures.

Exclusion criteria

* Current diagnosis, other than OUD, requiring chronic opioid treatment. * Pregnant or lactating females. * Have an ECG demonstrating a corrected QT interval using Fridericia's calculation (QTcF) \> 450 msec in males and QTcF \> 470 msec in females upon admission to the residential facility or prior to administration of RBP-6000. * Currently meet the criteria for diagnosis of moderate or severe substance use disorder, by DSM-5 criteria, for any substances other than opioids, and/or tobacco. * Had a significant traumatic injury, major surgery, or open biopsy within the 4 weeks prior to signing the informed consent form. * Used buprenorphine-containing products within the 14 days prior to signing the informed consent form. * Have a history of suicidal ideation within the 30 days prior to signing the informed consent form or prior to study drug administration * Have a history or presence of allergic or adverse response (including rash or anaphylaxis) to buprenorphine, naloxone, methadone, or the ATRIGEL Delivery System. * Individuals who have a positive urine drug screen (UDS) prior to admission to the residential facility for barbiturates, benzodiazepines, buprenorphine, or methadone.

Design outcomes

Primary

MeasureTime frameDescription
Area Under the Concentration-Time Curve from Study Day 1 to Day 29 (AUC0-28days) of BuprenorphineDay 1 to Day 29Relative bioavailability will be assessed using AUC0-28days.
Maximum Observed Plasma Concentration (Cmax) of BuprenorphineDay 1 to Day 57Relative bioavailability will also be assessed using Cmax

Secondary

MeasureTime frame
Area Under the Concentration-Time Curve from Study Day 1 to Day 29 (AUC0-28days) of NorbuprenorphineDay 1 to Day 29
Maximum Observed Plasma Concentration (Cmax) of NorbuprenorphineDay 1 to Day 57
Participants with Treatment-Emergent Adverse EventsDay 1 to Day 57

Countries

United States

Outcome results

None listed

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