# Combining Varenicline and Guanfacine for Smoking Cessation

> **NCT04198116** · PHASE2 · COMPLETED · sponsor: **Yale University** · enrollment: 165 (actual)

## Conditions studied

- Smoking Cessation

## Interventions

- **DRUG:** Varenicline
- **DRUG:** Guanfacine ER

## Key facts

- **NCT ID:** NCT04198116
- **Lead sponsor:** Yale University
- **Sponsor class:** OTHER
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-11-01
- **Primary completion:** 2025-04-30
- **Final completion:** 2025-04-30
- **Target enrollment:** 165 (ACTUAL)
- **Last updated:** 2025-07-25

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04198116

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04198116, "Combining Varenicline and Guanfacine for Smoking Cessation". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT04198116. Licensed CC0.

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