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NCT04202146 · ClinicalTrials.gov registry record · NA

Cannabis Use and Relapse After One Week of Contingency Management Therapy

A NA study, sponsored by Yale University.

Completed
Registry status
NA
Development phase
49
Enrollment target

NCT04202146: Completed NA study, sponsored by Yale University.

NCT04202146 is a NA study that has completed, run by Yale University. The registered enrollment target is 49 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04202146, a NA study, has completed, sponsored by Yale University.

COMPLETED
Registry status
NA
Development phase
49 participants
Enrollment target

Study Summary

The purpose of this study is to examine the effects of a seven-day combined contingency management (CM) with two sessions of brief Motivation Interviewing (MI) followed by standardized individual drug counseling on cannabis use and relapse in the following 90-day period in individuals with moderate to severe Cannabis Use Disorder (DSM-5).

Primary Outcome

The Structured Clinical Interview for DSM-V (SCID-II) will be used to ascertain DSM-5 Axis 1 psychiatric and substance abuse diagnoses (First, et al., 2015) and specifically to determine presence/absence of DSM-5 Cannabis Use Disorder (CUD). The SCID-II interview for cannabis use will be administered at intake and weeks 4, 8, and 12 to measure changes in problematic cannabis use. The outcome will be the slope of change over study day in daily quantity of use and the percent use days per week. In

Interventions

  • BEHAVIORAL Contingency Management + Motivational Interviewing

Trial Details

FieldValue
Enrollment Target 49 participants
Start Date 2018-07-15
Est. Completion 2019-09-15
Phase NA
Yale University

1,492 total trials

What the finished NCT04202146 record still lists

NCT04202146 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 49 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower).

The record links to 0 conditions, and to 1 intervention - of which Contingency Management + Motivational Interviewing is the first listed.

NCT04202146 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04202146 about?

NCT04202146 is a clinical study titled "Cannabis Use and Relapse After One Week of Contingency Management Therapy". The purpose of this study is to examine the effects of a seven-day combined contingency management (CM) with two sessions of brief Motivation Interviewing (MI) followed by standardized individual drug counseling on cannabis use and relapse in the following 90-day period in individuals with moderate ...

What is the current status of trial NCT04202146?

This trial is currently completed. It is a NA study. The enrollment target is 49 participants. The study started on 2018-07-15. Estimated completion is 2019-09-15.

What interventions are being tested in trial NCT04202146?

The interventions under investigation include: Contingency Management + Motivational Interviewing (BEHAVIORAL).

Who is sponsoring clinical trial NCT04202146?

This trial is sponsored by Yale University, which has 1,492 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04202146's enrollment target sits among peer trials

49 1379th of 2000 higher than 620 of 2,000 other NA trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT04202146, the US trial registry maintained by the National Library of Medicine. NCT04202146 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.