An interventional study of prize contingency management in Cocaine Abuse, sponsored by UConn Health. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-03-13.
Sponsored by UConn Health · Not applicable, Interventional, and Treatment
The investigators will randomize 300 cocaine-dependent methadone patients to 1 of 6 conditions: (a) a control group, (b) a contingency management condition that arranges a 100% probability of winning a prize with each draw and has 3 prize categories, (c) a contingency management condition that arranges a 31% probability of winning and has 3 prize categories, (d) a contingency management condition that arranges a 100% probability of winning and has 7 prize categories, (e) a contingency management condition that arranges a 31% probability of winning and has 7 prize categories, or (f) usual prize contingency management with a 50% probability of winning from 3 prize categories. Magnitudes of reinforcement will be identical across conditions, but lower overall probability conditions arrange for greater chances of winning larger magnitude prizes. The investigators expect that the new contingency management conditions will reduce cocaine use relative to the control condition, that 31% probability conditions will decrease drug use relative to 100% conditions, and that 7-prize category conditions will reduce drug use compared to 3-prize category conditions. In addition, the 31%/7-category condition is expected to be most efficacious. Results will be instrumental for further developing prize contingency management to improve outcomes of cocaine-dependent methadone patients.
415 studies on the registry are indexed under Cocaine-Related Disorders; 12 are open to participants now.
This study's enrollment of 280 is above the median of 60 across 312 interventional studies indexed under Cocaine-Related Disorders.
Browse Cocaine-Related Disorders studies →UConn Health is the lead sponsor of 182 studies on the registry; 18 are open to participants now.
Of its 9 completed or terminated interventional studies of FDA-regulated products, 6 (67%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Standard Care
100% probability of winning a prize with each draw and has 3 prize categories
Behavioral: prize contingency management
31% probability of winning and has 3 prize categories
Behavioral: prize contingency management
100% probability of winning and has 7 prize categories
Behavioral: prize contingency management
31% probability of winning and has 7 prize categories
Behavioral: prize contingency management
usual prize contingency management with a 50% probability of winning from 3 prize categories
Behavioral: prize contingency management
Participants earn the chance to win prizes for the targeted behavior, cocaine abstinence.
longest continuous period of cocaine abstinence
Time frame: three months
This study is completed, as verified in Mar 2019. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
UConn Health