A Placebo-Controlled Study of Mixed Amphetamine Salts and Topiramate for the Treatment of Cocaine Dependence (TACT)
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|ClinicalTrials.gov Identifier: NCT00421603|
Recruitment Status : Completed
First Posted : January 12, 2007
Results First Posted : February 28, 2013
Last Update Posted : May 15, 2018
|Condition or disease||Intervention/treatment||Phase|
|Cocaine Dependence||Drug: Adderall-XR and Topiramate Drug: Placebo||Phase 2|
Specific Aim 1: To determine the efficacy of ER-MAS and topiramate in promoting cocaine abstinence among cocaine-dependent patients.
Primary Hypothesis: The proportion of participants achieving sustained cocaine abstinence (via urine toxicology) for three consecutive weeks during the study will be significantly greater for the combined pharmacotherapies group compared to the placebo group.
Hypothesis 2: The proportion of urine samples negative for cocaine metabolites will be greater in the combined pharmacotherapies group compared to the placebo group.
Hypothesis 3: The pattern of cocaine use (amount of cocaine used per day in dollars and the number of using days per week), as measured by the time-line follow-back method, will show a greater reduction in use for the combined pharmacotherapies group compared to the placebo group.
Specific Aim 2: To determine the effect of ER-MAS and topiramate on cocaine craving among cocaine-dependent patients.
Hypothesis 4: Cocaine craving symptoms will be reduced to a greater degree in the combined pharmacotherapies group compared to the placebo group.
Specific Aim 3: To explore a set of related secondary outcomes (treatment retention, global functioning, HIV risk behavior) as well as moderators and mediators potentially reflective of mechanism of action.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||81 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Triple (Participant, Investigator, Outcomes Assessor)|
|Official Title:||A Randomized, Double-Blind, Placebo-Controlled Study of Mixed Amphetamine Salts (Adderall-XR) and Topiramate for the Treatment of Cocaine Dependence|
|Study Start Date :||February 2007|
|Actual Primary Completion Date :||May 2010|
|Actual Study Completion Date :||May 2010|
Active Comparator: Adderall-XR and Topiramate
Adderall-XR (60 mg/day) and Topiramate (300mg/day)
Drug: Adderall-XR and Topiramate
Adderall-XR 60mg/day and Topiramate 300mg/day
Placebo Comparator: Placebo
- Three Weeks of Continuous Cocaine Abstinence as Measured by Urine Toxicology and Self Report Based on Time Line Follow Back [ Time Frame: 3 weeks of abstinence during 14 weeks of trial or for length of participation ]Cocaine use was assessed by using urine toxicology confirmed self-report. Self-reported cocaine use data was collected for each day of the study period by the Time Line Follow Back. Urine samples were collected three times per week. A week was considered abstinence if no cocaine use was self reported during that week and if all urine samples collected that week were negative for cocaine. If a patient achieved three continuous weeks of abstinence based on this criteria they were considered cocaine abstinent in terms of this outcome measure.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00421603
|United States, New York|
|New York, New York, United States, 10032|
|Principal Investigator:||Frances R Levin, M.D.||Columbia University|