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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Quitline Support Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Helping Poor Smokers Quit

NCT03194958
View directory record Official record
Conditions
Smoking Cessation, Smoking, Tobacco, Smoking, Cigarette, Smoking, Pipe, Smoking (Tobacco) Addiction, Smoking, Tobacco Use, Tobacco Dependence, Tobacco Use Cessation, Tobacco Smoking, Tobacco; Use, Rehabilitation, Nicotine Dependence, Nicotine Use Disorder, Nicotine Dependence, Cigarettes, Nicotine Dependence Tobacco Product
Interventions
Specialized Quitline, Basic Needs Navigator
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
1,944 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 25, 2023 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Project CheckUP: A Brief Behavioral Intervention for Quitline Callers Who Use Marijuana (MJ) and Tobacco

NCT04737772
View directory record Official record
Conditions
Smoking Cessation, Marijuana Use
Interventions
Behavioral: Quitline treatment as usual, QL Marijuana Check-Up intervention (QL-MJCU)
Behavioral
Lead sponsor
Consumer Wellness Solutions
Industry
Eligibility
21 Years and older
Enrollment
107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 26, 2025 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional

Community and Clinician Partnership for Prevention

NCT00577759
View directory record Official record
Conditions
Physical Activity, Dietary Habits, Tobacco Use Cessation
Interventions
Active Intervention, Passive Intervention, No intervention
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 15, 2015 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Results available

Personalized Smoking Cessation Tool Based on Patient Lung CT Image

NCT03087617
View directory record Official record
Conditions
Smoking Cessation
Interventions
Imbio Smoking Cessation Report, Smoking Cessation Counseling, Usual Care
Device · Behavioral · Other
Lead sponsor
Imbio
Industry
Eligibility
55 Years to 80 Years
Enrollment
321 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 4, 2022 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tobacco Cessation Intervention

NCT03657511
View directory record Official record
Conditions
Smoking Tobacco
Interventions
Educational Interventions to Promote Tobacco Cessation
Behavioral
Lead sponsor
Barbara Ann Karmanos Cancer Institute
Other
Eligibility
21 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated May 5, 2022 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Support Person Intervention to Promote a Smoking Helpline Among Under Resourced Smokers

NCT03096145
View directory record Official record
Conditions
Tobacco Cessation
Interventions
Telephone counseling 1 session, Mobile texting, Health incentive
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 10, 2019 · Synced Sep 2, 2026, 4:06 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Helpers Program On-line Training on Smoking Relapse and Social Networks

NCT05641974
View directory record Official record
Conditions
Smoking, Cigarette Smoking
Interventions
Helpers Stay Quit Training
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 99 Years
Enrollment
940 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Phase 2Phase 3 Interventional Results available

PRecision Interventions for SMoking in the SCCS

NCT03521141
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
Nicotine patch, Varenicline, Nicotine metabolism, Genetically-informed lung cancer risk score, NCI "Clearing the Air"
Drug · Genetic · Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 31, 2020 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Results available

Worksite Phone Counseling for Smoking Cessation

NCT02730260
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nondirective smoking cessation coaching, Directive smoking cessation coaching
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
518 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 22, 2016 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Parent eReferral to Tobacco Quitline

NCT02997735
View directory record Official record
Conditions
Secondhand Smoke
Interventions
Quitline Delivered Treatment
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
18 Years and older
Enrollment
484 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 27, 2019 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Enhancing Smoker Utilization of the Minnesota Quitline Through Support Persons

NCT01311830
View directory record Official record
Conditions
Tobacco Use
Interventions
Telephone Counseling, Written Materials
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
534 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 22, 2011 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Results available

Engaging Patients in Tobacco Cessation Resources in Dental Settings

NCT03656874
View directory record Official record
Conditions
Smoking
Interventions
Clinical Decision Support
Other
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
3
States / cities
Indianapolis, Indiana • Bloomington, Minnesota • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 27, 2022 · Synced Sep 2, 2026, 4:06 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

mHealth for Smoking Cessation in Public Housing

NCT04657250
View directory record Official record
Conditions
Smoking Cessation
Interventions
Smoking cessation + quitline linkage text messages, Passive quitline referral
Behavioral
Lead sponsor
George Washington University
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Nov 7, 2022 · Synced Sep 2, 2026, 4:06 PM EDT
Not yet recruiting Not applicable Interventional

Pain and Smoking Study 2

NCT06442514
View directory record Official record
Conditions
Smoking, Pain, Smoking Cessation
Interventions
PASS2, Treatment as Usual
Behavioral · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 2, 2026, 4:06 PM EDT
Terminated Phase 4 Interventional Results available

Mindfulness Based Smoking Cessation Among Cancer Survivors

NCT04038255
View directory record Official record
Conditions
Tobacco Smoking
Interventions
Nicoderm C-Q Transdermal Product, Orientation session, Craving-to-Quit app, Two brief follow-up phone calls, Group MT sessions, Brief advice on quitting smoking, Self-help smoking cessation materials
Drug · Behavioral
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
2
States / cities
Miami, Florida • Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Phase 4 Interventional Results available

Effectiveness of a Smoking Cessation Algorithm Integrated Into HIV Primary Care

NCT03670316
View directory record Official record
Conditions
HIV, AIDS, Smoking Cessation
Interventions
Algorithm Treatment, Quitline only
Drug · Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
371 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 2, 2026, 4:06 PM EDT
Recruiting Not applicable Interventional

Technology Assisted Motivational Interviewing

NCT06713603
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
TAMI Coach
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
440 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 22, 2025 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Phase 4 Interventional Results available

Health Systems Reach Interventions Project

NCT04199117
View directory record Official record
Conditions
Smoking, Cigarette, Smoking Cessation
Interventions
Varenicline, Combination nicotine patch and nicotine mini-lozenge treatment, Monetary incentives for initiating treatment, Automated tailored outreach, Care management, Wisconsin Tobacco Quit Line referral, Primary care provider referral, Untailored outreach, Multiple smoking cessation coaching calls
Drug · Behavioral · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 23, 2025 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Results available

Promoting Smoking Cessation in Lung Cancer Screening Through Proactive Treatment

NCT03612804
View directory record Official record
Conditions
Smoking Reduction, Tobacco Use, Tobacco Smoking, Tomography, Lung Diseases, Lung Neoplasms
Interventions
Unsigned note to provider about cessation medication prescription, Proactive Telephone Counseling from VA Quitline
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Up to 80 Years
Enrollment
944 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
3
States / cities
New York, New York • Providence, Rhode Island • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 7, 2024 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Enhanced E-cigarette Coaching Intervention for Dual Users of Cigarettes and E-cigarettes

NCT03575468
View directory record Official record
Conditions
Smoking Cessation
Interventions
Enhanced E-cigarette Coaching, Quitline treatment as usual
Behavioral
Lead sponsor
Consumer Wellness Solutions
Industry
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 15, 2023 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Interventions to Help More Low-income Smokers Quit

NCT04311983
View directory record Official record
Conditions
Tobacco Use Cessation, Smoking Behaviors, Health Disparity
Interventions
Tobacco Quitline, Smoke Free Home
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
21 Years and older
Enrollment
1,973 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 9, 2024 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional

Comparative Effectiveness of Two Tobacco Cessation Interventions for Employees of Partners HealthCare, Inc.

NCT02601521
View directory record Official record
Conditions
Smoking Cessation, Tobacco Use Disorder
Interventions
Internal tobacco coach, External tobacco coach
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 23, 2021 · Synced Sep 2, 2026, 4:06 PM EDT
Recruiting Not applicable Interventional

Refer2Quit: Evaluating a Proactive, Tailored, Population Health Approach for Tobacco Treatment for Household Smokers Through a Pediatric Care Network

NCT06582693
View directory record Official record
Conditions
Smoking, Smoking Cessation, Second Hand Tobacco Smoke
Interventions
Refer2Quit
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
18 Years and older
Enrollment
3,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 2, 2026, 4:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study of Mobile Phone Support for the DC Tobacco Quitline

NCT01817842
View directory record Official record
Conditions
Smoking Cessation
Interventions
Mobile EX cessation support, DC Quitline Support, Device Control
Behavioral
Lead sponsor
Truth Initiative
Other
Eligibility
18 Years and older
Enrollment
803 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 25, 2013 · Synced Sep 2, 2026, 4:06 PM EDT