Free Venlafaxine Treatment for Marijuana Addiction and Depression - 1 (VEN)
The purpose of this study is to determine if Venlafaxine Extended Release (Ven-XR) is effective in treating individuals with marijuana addiction and depression.
|Study Design:||Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
|Official Title:||Marijuana Addiction and Depression: Venlafaxine Treatment|
- Two Consecutive Weeks of Marijuana Abstinence [ Time Frame: measured daily by self report for 12 weeks of the trial or length of study participation ] [ Designated as safety issue: No ]The primary outcome measure for marijuana use was a dichotomous abstinence response,defined as at least two consecutive urine-confirmed abstinent weeks. Each week during the study, subjects were scored as urine-confirmed abstinent if both self-reported marijuana use for that week was negative, according to the quantitative substance use daily inventory (Timeline FollowBack), and all urines collected for that week were negative for THC. Patients who achieved the two consecutive abstinent weeks were classified as abstinent whether or not they subsequently dropped out of the study. Patients who dropped out of the study without achieving two continuous weeks of abstinence were classified as not abstinent.
|Study Start Date:||March 2004|
|Study Completion Date:||December 2010|
|Primary Completion Date:||December 2010 (Final data collection date for primary outcome measure)|
Active Comparator: Venlafaxine
Other Name: Effexor
Placebo Comparator: Placebo
Other Name: placebo
Given that depression and marijuana addiction often occur together, medications to treat individuals diagnosed with both conditions may be effective. The purpose of this study is to determine the effectiveness of Ven-XR in treating individuals diagnosed with depression and marijuana addiction.
During this twelve-week, double-blind, placebo-controlled study, study visits will occur twice each week. During study visits, participants will receive either placebo or medication and provide a urine sample for drug screening. Blood tests will be collected each month and women must take pregnancy tests each month. Throughout the study, all participants will receive individualized psychotherapy sessions. At each study visit, participants will be given $5 to cover transportation costs.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00131456
|United States, New York|
|New York State Psychiatric Institute|
|New York, New York, United States, 10032|
|Principal Investigator:||Frances R Levin, M.D.||New York State Psychiatric Institute|