Title
Transfer of Subjects From Subutex/Suboxone to RBP-6300
A Randomized, Double-blind, Double-dummy, Active-drug-controlled, Parallel-group, Multicentre Acceptability and Safety Study of the Transfer From Subutex/Suboxone to RBP-6300 in Opioid-dependent Subjects
Phase
Phase 2Lead Sponsor
Indivior Inc.Study Type
InterventionalStatus
Completed No Results PostedIndication/Condition
Opioid Related DisorderIntervention/Treatment
buprenorphine ...Study Participants
143This study is designed to determine if opioid dependent subjects who are already receiving Subutex and/or Suboxone can transfer to RBP-6300. Upon completing the study, subjects will continue their pre-study prescribed dosage of Subutex and/or Suboxone
During the open-label Run-In Period (study days -7 to -1), participants receive Subutex®/Suboxone® at one of three dose levels, depending on the dose level for that subject on entry to the study: 8 mg/day, 16 mg/day, or 24 mg/day.
During the 7-day, active drug-controlled, double-blind Transfer Period (study days 1-7), participants are randomized to either Subutex®/Suboxone® or RBP-6300 active drug at dosing levels equivalent to the level during the Run-In Period plus placebo matching the other drug.
This is followed by a 3-day single-blind Subutex®/Suboxone® Transition Period in which participants receive the same dose given during the Run-In Period.
Participants randomized to the RBP-6300 treatment arm take either 10, 20 or 30 mg/day RBP-6300 tablets during the Transfer Period (study days 1-7). Oral RBP-6300 tablets containing 10 mg buprenorphine hemiadipate HCl and 10 mg naloxone HCl dehydrate.
Participants randomized to the Subutex®/Suboxone® treatment arm take the dosage of either drug on which they were previously stabilised during the Run-In, Transfer, and Transition Periods. Participants randomized to the RBP-6300 treatment arm take the dosage of either drug on which they were previously stabilised during the Run-In and Transition Periods. Sublingual Subutex® tablets containing 8 mg buprenorphine and and sublingual Suboxone® tablets containing 8 mg buprenorphine and 2 mg naloxone.
Participants randomized to the Subutex®/Suboxone® treatment arm take Placebo for RBP-6300 during the Transfer and Transition Periods. Participants randomized to the RBP-6300 treatment arm take Placebo for RBP-6300 during the Transition Period.
Participants randomized to the RBP-6300 treatment arm take Placebo for Subutex®/Suboxone® during the Transfer Period.
During the Double-Blind Transfer Period (Days 1-7), participants take RBP-6300 at a level (either 10, 20 or 30 mg/day) equivalent to dosing during the Run-In Period, plus Placebo for Subutex®/Suboxone®. This is followed by a 3-day Transition Period (Days 8-10) in which participants take active Subutex®/Suboxone® equal to the dose taken during the Run-In Period plus placebo matching RBP-6000.
During the Double-Blind Transfer Period (Days 1-7), participants take Subutex®/Suboxone® at a level (either 8, 16 or 240 mg/day) equivalent to dosing during the Run-In Period, plus Placebo for RBP-6000. This is followed by a 3-day Transition Period (Days 8-10) in which participants take active Subutex®/Suboxone® equal to the dose taken during the Run-In Period plus placebo matching RBP-6000.
Inclusion Criteria: Be Male or non-pregnant, non-lactating females Be at least 18 years of age Meet Diagnostic and Statistical Manual of Mental Disorders, DSM-IV-TR (Diagnostic and Statistical Manual-IV-TEXT REVISION)criteria for opioid dependence at screening Be on stable dose of 8, 16, or 24mg/day for about 30 days prior to screening Female subjects of childbearing potential must have a negative urine test prior to enrollment into the study Exclusion Criteria: Have participated in an experimental drug or device study within the last 60 days If female, be breast feeding or lactating Have any medical condition that in the opinion of the physician investigator would preclude the subject from completing the study Have a clinically significant abnormal finding (in the opinion of the investigator)
