Cocaine dependence has diverse adverse consequences and has proven difficult to treat. Behavioral interventions, including Community Reinforcement Model and Cognitive Behavior Therapy/Relapse Prevention have proven effective. Medications that might serve as effective adjuncts have been elusive. Recent primate self-administration data (Negus, 2002), several recent reports, and completion/analysis of a recent large clinical trial support further study of the agonist/ replacement approach. Still, target medications, dose, and duration must be further evaluated. ? ? This application proposes a large (140 S's, 35/group), long duration (6 month) rigorous blind randomized clinical trial. Sustained release d-amphetamine will be examined across dose range. of PBO, 45 mg, 60 mg, or 80 mg administered in identical capsules. Rigorous compliance measures using riboflavin, urine screens, and MEMS dispensing bottles will be applied. Consent will be followed by a 10 day period in which BZ positive urine screens must be provided and during which Intake and Evaluation will proceed. Medication run-up of 10 days will be followed by 20 weeks of stable medication. A dose reduction period and four weeks of behavior therapy alone will follow, Post treatment follow-up will be at 1 and 3 months. Intake evaluation will include standardized measures (.e.g. ASI, SCID, HAM A/D, Craving Questionnaire; HIV, EKG, TB, urine screens). There will be repeated weekly measures with thrice weekly urine screens. EKGs will be bi-weekly. Manual Driven Cognitive Behavior Therapy will be weekly. Blood samples will be obtained at regular intervals during run-up, maintenance, dose reduction and in the final three non-medication weeks. This design incorporates both major features and details in accord with NIDA's consensus review (January 2002) on optimal strategies for agonist evaluation. ? ?

Agency
National Institute of Health (NIH)
Institute
National Institute on Drug Abuse (NIDA)
Type
Research Project (R01)
Project #
1R01DA016305-01
Application #
6599547
Study Section
Human Development Research Subcommittee (NIDA)
Program Officer
Montoya, Ivan
Project Start
2003-05-01
Project End
2006-02-28
Budget Start
2003-05-01
Budget End
2004-02-29
Support Year
1
Fiscal Year
2003
Total Cost
$493,654
Indirect Cost
Name
University of Texas Health Science Center Houston
Department
Psychiatry
Type
Schools of Medicine
DUNS #
800771594
City
Houston
State
TX
Country
United States
Zip Code
77225
Mooney, Marc E; Herin, David V; Schmitz, Joy M et al. (2009) Effects of oral methamphetamine on cocaine use: a randomized, double-blind, placebo-controlled trial. Drug Alcohol Depend 101:34-41
Chawdhary, Ayesha; Sayre, Shelly L; Green, Charles et al. (2007) Moderators of delay tolerance in treatment-seeking cocaine users. Addict Behav 32:370-6
Grabowski, John; Shearer, James; Merrill, John et al. (2004) Agonist-like, replacement pharmacotherapy for stimulant abuse and dependence. Addict Behav 29:1439-64