# Extended Effects of Cannabis Abstinence on Clinical Symptoms and Cognition in Depression

> **NCT04935619** · NA · RECRUITING · sponsor: **Centre for Addiction and Mental Health** · enrollment: 52 (estimated)

## Conditions studied

- Cannabis Use
- Major Depressive Disorder
- Cognitive Impairment

## Interventions

- **BEHAVIORAL:** Contingency Reinforcement
- **BEHAVIORAL:** Non-Contingency Reinforcement

## Key facts

- **NCT ID:** NCT04935619
- **Lead sponsor:** Centre for Addiction and Mental Health
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2021-07-21
- **Primary completion:** 2027-06-30
- **Final completion:** 2027-08-31
- **Target enrollment:** 52 (ESTIMATED)
- **Last updated:** 2025-02-24


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04935619

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04935619, "Extended Effects of Cannabis Abstinence on Clinical Symptoms and Cognition in Depression". Retrieved via AI Analytics 2026-06-22 from https://api.ai-analytics.org/clinical/NCT04935619. Licensed CC0.

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