Behavior, Addictive, Cocaine Abuse, Cocaine Dependence, Heroin Dependence, Opioid Dependence
Conditions
Keywords
Behavior Therapy, Cocaine Abuse, Cocaine Dependence, Contingency Management, Heroin Dependence, Methadone, Opioid Dependence
Brief summary
The purpose of this study is to determine whether long-term exposure to the Therapeutic Workplace intervention could sustain drug abstinence over an extended period of time in heroin- and cocaine-dependent, unemployed, treatment-resistant young mothers.
Detailed description
The current study is a continuation of the research into the development and evaluation of a novel treatment designed to address the chronic, persistent nature of drug addiction. This treatment, called the Therapeutic Workplace, integrates abstinence reinforcement contingencies of proven efficacy into a model supported work program. Participants were paid to work or to train in the Therapeutic Workplace but had to provide drug-free urine samples to gain daily access. Forty participants were randomly assigned to a Therapeutic Workplace or usual care control group. Therapeutic Workplace participants could work for about 5 years. This study reports the effects of the intervention over a follow-up period of 8 years after treatment initiation.
Interventions
BEHAVIORALContingency management
Invited to attend the Therapeutic Workplace 3 hr per day, Monday through Friday. Each day when a participant reported to the workplace, she was required to provide a urine sample. If the sample tested negative for opiates and cocaine, she was allowed to work that day. Participants who gained entrance to the workplace participated in basic skills education and job skills training throughout each 3-hr work shift.
Sponsors
Johns Hopkins University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
No
Inclusion criteria
* When originally enrolled in the study, participants were at least 18 years old, unemployed, and methadone maintenance patients of the Center for Addiction and Pregnancy (CAP) who continued to use opiates or cocaine during CAP treatment.
Exclusion criteria
* Participants were excluded if they were at risk for suicide at the time of intake or if they had serious psychiatric illness (e.g., schizophrenia).
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of urine samples at the assessments that were negative for cocaine | every 30 days throughout fourth year | (total number of monthly urine samples negative for cocaine/total number of possible urine samples) x 100 |
| Percentage of urine samples at the assessments that were negative for opiates | every 30 days throughout fourth year | (total number of monthly urine samples negative for opiates/total number of possible urine samples) x 100 |
| Percentage of urine samples at the assessments that were negative for cocaine and opiates | every 30 days throughout fourth year | (total number of monthly urine samples negative for cocaine and opiates/total number of possible urine samples) x 100 |
Secondary
| Measure | Time frame |
|---|---|
| HIV risk behaviors | every 30 days throughout fourth year |
| Percentage of participants to self-report abstinence at all time points | every 30 days throughout fourth year |
| Percentage of participants employed each month | every 30 days throughout fourth year |
| Number of days employed each month | every 30 days throughout fourth year |
Countries
United States
Outcome results
None listed