Study Summary
This trial will study the impacts of reduced cannabis use on functional outcomes in heavy cannabis users, in order to inform clinical trials of pharmacotherapies for substance use disorders.
Eligible Conditions
- Cannabis Use
- Cannabis
Treatment Effectiveness
Effectiveness Progress
Study Objectives
4 Primary · 8 Secondary · Reporting Duration: Baseline and post-treatment (approximately eight weeks)
Baseline and post-treatment (approximately eight weeks)
Change in auditory working memory
Change in health-related quality of life, WHOQOL-BREF
Change in impulsivity as measured by delay discounting
Change in impulsivity as measured by self-report
Change in impulsivity as measured by the Balloon Analogue Risk Task
Change in impulsivity as measured by the Iowa Gambling Task
Change in mental health symptoms
Change in number of days of drugged driving
Change in physical activity as measured by the Baecke Physical Activity Questionnaire
Change in physical activity as measured by the International Physical Activity Questionnaire
Change in self-reported self-efficacy
Change in visual working memory
Trial Safety
Safety Progress
Trial Design
2 Treatment Groups
Control Condition
1 of 2
Reduced Use Condition
1 of 2
Active Control
Experimental Treatment
92 Total Participants · 2 Treatment Groups
Primary Treatment: Mobile contingency management · No Placebo Group · N/A
Reduced Use Condition
Behavioral
Experimental Group · 1 Intervention: Mobile contingency management · Intervention Types: BehavioralControl ConditionNoIntervention Group · 1 Intervention: Control Condition · Intervention Types:
Trial Logistics
Trial Timeline
Screening: ~3 weeks
Treatment: Varies
Reporting: baseline and post-treatment (approximately eight weeks)
Who is running the clinical trial?
Duke UniversityLead Sponsor
2,178 Previous Clinical Trials
3,200,602 Total Patients Enrolled
3 Trials studying Cannabis Use
159 Patients Enrolled for Cannabis Use
Eligibility Criteria
Age 18 - 80 · All Participants · 5 Total Inclusion Criteria
Mark “Yes” if the following statements are true for you:I can speak and write fluent conversational English.
We are looking for people who are between 18 and 80 years of age.
You are asked to complete 10 out of 14 nightly diaries during the ad lib phase of the study.
I had 40 or more days of cannabis use in the past 90 days.
Who else is applying?
What state do they live in?
| Virginia | 100.0% |
How old are they?
| 18 - 65 | 100.0% |
What site did they apply to?
| Duke University Medical Center | 100.0% |
What portion of applicants met pre-screening criteria?
| Met criteria | 100.0% |
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Conditions
Cancer Related
Treatments