Tryptophan and Behavior Therapy for Cocaine Abuse - 1
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
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The purpose of this study is to assess the efficacy of tryptophan vs. placebo, and voucher payments vs. a control condition, in the treatment of cocaine dependence.
Condition or disease
This clinical trial uses a 2 by 2 design to compare tryptophan to placebo, and voucher incentives vs. a control condition, in the outpatient treatment of cocaine dependence- using a relapse prevention model of treatment intervention.
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Ages Eligible for Study:
18 Years to 55 Years (Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Physically dependent on drugs of abuse other than cocaine
Significant medical or psychiatric illness (besides substance abuse disorder)
Jones H.E., Johnson, R.E., Bigelow G.E., Strain E.C. Differences at treatment entry between opioid-dependent and cocaine-dependent males and females. Addictive Disorders and Their Treatment 3:110-121, 2004.
Central Nervous System Depressants
Physiological Effects of Drugs
Sensory System Agents