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Memantine-enhanced Buprenorphine Treatment for Opioid-dependent Young Adults

Primary Purpose

Opioid Dependence

Status
Completed
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
Memantine
Memantine
Placebo
Sponsored by
University of Massachusetts, Worcester
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Opioid Dependence focused on measuring Drug Abuse

Eligibility Criteria

18 Years - 25 Years (Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Men and women between 18-25 years old
  • Opioid dependence as evidenced by signs of opiate withdrawal, self-reported history of opioid dependence for a consecutive 12 month period and positive urine for opioids

Exclusion Criteria:

  • Current diagnosis of other drug or alcohol dependence (other than opiates, cannabis or tobacco)
  • Serious medical illness (e.g. major cardiovascular, renal, endocrine, hepatic disorder)
  • Current serious psychiatric illness or history of psychosis, schizophrenia, bipolar type I disorder and participants with suicidal or homicidal thoughts
  • Women who are pregnant, nursing or refuse to use a reliable form of birth control or refuse monthly pregnancy testing
  • Screening liver function tests (SGOT or SGPT) greater than 3 times normal

Sites / Locations

  • University of Massachusetts Medical School

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Placebo Comparator

Arm Label

Memantine 30mg/day + Buprenorphine

Memantine 15mg/day + Buprenorphine

Memantine 0mg/day + Buprenorphine

Arm Description

Participants were inducted onto buprenorphine/naloxone sublingual tablets during the first week of study participation. The dose was titrated from bup/nal 8mg to bup/nal 16mg in three days where it will remain until the last day of week 8. The 7-day discontinuation of buprenorphine-naloxone on week 9 was 12mg, 10mg, 8mg, 6mg, 4mg, 2mg, 2mg and stopped. Memantine 5mg in the morning was started on week 2. The dose was titrated on a twice a day schedule until the target dose of 30 mg/day was achieved by week 4. The medication was discontinued over a one-week period on week 13. Patients received a 7-day supply of their medication each week.

Participants were inducted onto buprenorphine/naloxone sublingual tablets during the first week of study participation. The dose was titrated from bup/nal 8mg to bup/nal 16mg in three days where it will remain until the last day of week 8. The 7-day discontinuation of buprenorphine-naloxone on week 9 was 12mg, 10mg, 8mg, 6mg, 4mg, 2mg, 2mg and stopped. Memantine 5mg in the morning was started on week 2. The dose was titrated on a twice a day schedule until the target dose of 15 mg/day was achieved by week 4. The medication was discontinued over a one-week period on week 13. Patients received a 7-day supply of their medication each week.

Participants were inducted onto buprenorphine/naloxone sublingual tablets during the first week of study participation. The dose was titrated from bup/nal 8mg to bup/nal 16mg in three days where it will remain until the last day of week 8. The 7-day discontinuation of buprenorphine-naloxone on week 9 was 12mg, 10mg, 8mg, 6mg, 4mg, 2mg, 2mg and stopped. Matching placebo capsule was started on week 2. The placebo capsules were given on a twice a day schedule until week 12 and then discontinued over a one-week period on week 13. Patients received a 7-day supply of their medication each week.

Outcomes

Primary Outcome Measures

Change of Opioid Use From Week 1 to 13
The primary outcome variable was the change from baseline of the mean proportion of weekly opioid use assessed by self-reported days of use and/or positive urine drug screen during the previous week using the time-line followed-back method (TLFB) . A positive urine counted as 1, as did each self-reported day of use. Each participants total was divided by 8. Mean proportion by group were calculated by averaging the proportions across participants in that group.
Number of Participants Who Were Estimated to Have Survived as Assessed by Survival Curve of Relapse Rate After Achieving Complete Abstinence on Week 8
Calculated survival curve from abstinence in Week 8 to first positive opioid urine screen or first reported relapse to opioid use to evaluate the effect of memantine on reducing early relapse and after rapid buprenorphine discontinuation on week 9. The last observation carried forward (LOCF) was used to perform our event survival analyses.

Secondary Outcome Measures

Treatment Retention
Treatment retention during the stabilization period weeks 1 to 8 and after buprenorphine / naloxone discontinuation weeks 9 to 13.

Full Information

First Posted
January 18, 2010
Last Updated
March 11, 2015
Sponsor
University of Massachusetts, Worcester
Collaborators
National Institute on Drug Abuse (NIDA)
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1. Study Identification

Unique Protocol Identification Number
NCT01052662
Brief Title
Memantine-enhanced Buprenorphine Treatment for Opioid-dependent Young Adults
Official Title
Memantine-enhanced Buprenorphine Treatment for Opioid-dependent Young Adults
Study Type
Interventional

2. Study Status

Record Verification Date
March 2015
Overall Recruitment Status
Completed
Study Start Date
October 2009 (undefined)
Primary Completion Date
June 2013 (Actual)
Study Completion Date
October 2013 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
University of Massachusetts, Worcester
Collaborators
National Institute on Drug Abuse (NIDA)

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The purpose of this study is to examine the effect of memantine and buprenorphine on opioid abusing behavior, to determine the effect of memantine and buprenorphine on early relapse and to evaluate the tolerability of memantine co-administrated with buprenorphine. The study seeks to determine if combined treatment of memantine and buprenorphine may provide shorter-term treatment for opioid dependence.
Detailed Description
Opiate dependence is an increasing problem among young adults (18-25 years old) whose rates of current use of illicit drugs are generally high (19.7 %)according to data from the 2007 National Survey on Drug Use & Health (Substance Abuse and Mental Health Services Administration 2008). Young adults start using heroin around this age range, and more recently have had increasing rates of prescription-type drug use. Given that young adults with opiate dependence who are seeking treatment are relatively treatment naïve, have a shorter period of addiction, and are more likely to choose buprenorphine over methadone, developing short-term buprenorphine treatment alternatives to long-term methadone agonist treatment is needed.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Opioid Dependence
Keywords
Drug Abuse

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2, Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
87 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Memantine 30mg/day + Buprenorphine
Arm Type
Experimental
Arm Description
Participants were inducted onto buprenorphine/naloxone sublingual tablets during the first week of study participation. The dose was titrated from bup/nal 8mg to bup/nal 16mg in three days where it will remain until the last day of week 8. The 7-day discontinuation of buprenorphine-naloxone on week 9 was 12mg, 10mg, 8mg, 6mg, 4mg, 2mg, 2mg and stopped. Memantine 5mg in the morning was started on week 2. The dose was titrated on a twice a day schedule until the target dose of 30 mg/day was achieved by week 4. The medication was discontinued over a one-week period on week 13. Patients received a 7-day supply of their medication each week.
Arm Title
Memantine 15mg/day + Buprenorphine
Arm Type
Experimental
Arm Description
Participants were inducted onto buprenorphine/naloxone sublingual tablets during the first week of study participation. The dose was titrated from bup/nal 8mg to bup/nal 16mg in three days where it will remain until the last day of week 8. The 7-day discontinuation of buprenorphine-naloxone on week 9 was 12mg, 10mg, 8mg, 6mg, 4mg, 2mg, 2mg and stopped. Memantine 5mg in the morning was started on week 2. The dose was titrated on a twice a day schedule until the target dose of 15 mg/day was achieved by week 4. The medication was discontinued over a one-week period on week 13. Patients received a 7-day supply of their medication each week.
Arm Title
Memantine 0mg/day + Buprenorphine
Arm Type
Placebo Comparator
Arm Description
Participants were inducted onto buprenorphine/naloxone sublingual tablets during the first week of study participation. The dose was titrated from bup/nal 8mg to bup/nal 16mg in three days where it will remain until the last day of week 8. The 7-day discontinuation of buprenorphine-naloxone on week 9 was 12mg, 10mg, 8mg, 6mg, 4mg, 2mg, 2mg and stopped. Matching placebo capsule was started on week 2. The placebo capsules were given on a twice a day schedule until week 12 and then discontinued over a one-week period on week 13. Patients received a 7-day supply of their medication each week.
Intervention Type
Drug
Intervention Name(s)
Memantine
Intervention Description
30mg/day Memantine orally everyday for 12 weeks
Intervention Type
Drug
Intervention Name(s)
Memantine
Intervention Description
15 mg/day Memantine orally everyday for 12 weeks
Intervention Type
Drug
Intervention Name(s)
Placebo
Intervention Description
Placebo orally everyday for 12 weeks
Primary Outcome Measure Information:
Title
Change of Opioid Use From Week 1 to 13
Description
The primary outcome variable was the change from baseline of the mean proportion of weekly opioid use assessed by self-reported days of use and/or positive urine drug screen during the previous week using the time-line followed-back method (TLFB) . A positive urine counted as 1, as did each self-reported day of use. Each participants total was divided by 8. Mean proportion by group were calculated by averaging the proportions across participants in that group.
Time Frame
Weekly from week 1 to 13
Title
Number of Participants Who Were Estimated to Have Survived as Assessed by Survival Curve of Relapse Rate After Achieving Complete Abstinence on Week 8
Description
Calculated survival curve from abstinence in Week 8 to first positive opioid urine screen or first reported relapse to opioid use to evaluate the effect of memantine on reducing early relapse and after rapid buprenorphine discontinuation on week 9. The last observation carried forward (LOCF) was used to perform our event survival analyses.
Time Frame
Weeks after buprenorphine discontinuation week 9
Secondary Outcome Measure Information:
Title
Treatment Retention
Description
Treatment retention during the stabilization period weeks 1 to 8 and after buprenorphine / naloxone discontinuation weeks 9 to 13.
Time Frame
Weekly

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
25 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Men and women between 18-25 years old Opioid dependence as evidenced by signs of opiate withdrawal, self-reported history of opioid dependence for a consecutive 12 month period and positive urine for opioids Exclusion Criteria: Current diagnosis of other drug or alcohol dependence (other than opiates, cannabis or tobacco) Serious medical illness (e.g. major cardiovascular, renal, endocrine, hepatic disorder) Current serious psychiatric illness or history of psychosis, schizophrenia, bipolar type I disorder and participants with suicidal or homicidal thoughts Women who are pregnant, nursing or refuse to use a reliable form of birth control or refuse monthly pregnancy testing Screening liver function tests (SGOT or SGPT) greater than 3 times normal
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Gerardo Gonzalez, M.D.
Organizational Affiliation
University of Massachusetts, Worcester
Official's Role
Principal Investigator
Facility Information:
Facility Name
University of Massachusetts Medical School
City
Worcester
State/Province
Massachusetts
ZIP/Postal Code
01605
Country
United States

12. IPD Sharing Statement

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Memantine-enhanced Buprenorphine Treatment for Opioid-dependent Young Adults

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