Tryptophan and Behavior Therapy for Cocaine Abuse - 1

Tryptophan and Behavior Therapy for Cocaine Abuse

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.

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.

Inclusion Criteria:

• Cocaine dependent

Exclusion Criteria:

• Physically dependent on drugs of abuse other than cocaine
• Significant medical or psychiatric illness (besides substance abuse disorder)
• Pregnant