# Cannabis and Tobacco Co-use Study

> **NCT04228965** · PHASE4 · COMPLETED · sponsor: **Medical University of South Carolina** · enrollment: 181 (actual)

## Conditions studied

- Tobacco Use Disorder

## Interventions

- **DRUG:** Varenicline
- **BEHAVIORAL:** Contingency Management
- **BEHAVIORAL:** Counseling

## Key facts

- **NCT ID:** NCT04228965
- **Lead sponsor:** Medical University of South Carolina
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-01-28
- **Primary completion:** 2024-06-12
- **Final completion:** 2024-09-13
- **Target enrollment:** 181 (ACTUAL)
- **Last updated:** 2025-06-15

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04228965

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04228965, "Cannabis and Tobacco Co-use Study". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT04228965. Licensed CC0.

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