Effectiveness of Combination Varenicline and Oral Nicotine Replacement Therapy (COMBO)
Public ClinicalTrials.gov record NCT03722966. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Comparison of the Effectiveness of Combination Varenicline and Oral Nicotine Replacement Therapy Versus Varenicline Alone for Smoking Cessation: a Pilot Study
Study identification
- NCT ID
- NCT03722966
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- University of Oklahoma
- Other
- Enrollment
- 34 participants
Conditions and interventions
Conditions
Interventions
- Varenicline Drug
- Oral Nicotine Replacement Therapy (NRT) Drug
- Medication Reminders Behavioral
- Tobacco Cessation Counseling Behavioral
Drug · Behavioral
Eligibility (public fields only)
- Age range
- 18 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 6, 2020
- Primary completion
- Feb 6, 2022
- Completion
- Feb 6, 2022
- Last update posted
- Feb 5, 2024
2020 – 2022
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| TSET Health Promotion Research Center | Oklahoma City | Oklahoma | 73104 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03722966, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 5, 2024 · Synced Jul 23, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03722966 live on ClinicalTrials.gov.