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ClinicalTrials.gov public records Last synced Oct 19, 2026, 2:56 AM EDT

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Showing 1–24 of 63 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Secondhand smoke Clear all
Completed Not applicable Interventional Accepts healthy volunteers

OCAST Cessation Study

NCT01921439
View directory record Official record
Conditions
Tobacco Smoking Behavior, Cigarette Smoking Behavior, Second Hand Tobacco Smoke, Tobacco Use Cessation
Interventions
Personalized Feedback
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 65 Years
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 11, 2017 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

PROS Brief Smoking Cessation Counseling in Pediatric Practice to Reduce Secondhand Smoke Exposure of Young Children

NCT00135213
View directory record Official record
Conditions
Health Care Quality, Access, and Evaluation, Smoking Cessation
Interventions
training in smoking cessation
Behavioral
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
1,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 3, 2008 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional Results available

Babies Living Safe and Smokefree

NCT02602288
View directory record Official record
Conditions
Second Hand Tobacco Smoke, Nicotine Dependence
Interventions
Ask, Advise, Refer, Telebased tobacco counseling, Telebased nutrition counseling, Mobile phone smoking cessation application, Mobile phone nutrition application, Nicotine polacrilex
Behavioral · Device · Drug
Lead sponsor
Temple University
Other
Eligibility
18 Years and older · Female only
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 15, 2022 · Synced Oct 19, 2026, 2:56 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Preventing Relapse Following Involuntary Smoking Abstinence

NCT01374724
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Tobacco Use Ban, Tailored Pamphlet, Informational Pamphlet, Relapse Prevention Intervention
Behavioral
Lead sponsor
University of Tennessee
Other
Eligibility
18 Years and older
Enrollment
23,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
2
States / cities
Memphis, Tennessee • Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Creating Smokefree Living Together for Chinese Household Pairs

NCT01592682
View directory record Official record
Conditions
Smoking, Smoke Exposure
Interventions
Smokefree counseling
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
410 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 3, 2015 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Motivational Incentives to Reduce Secondhand Smoke in NICU Infants' Homes

NCT01726062
View directory record Official record
Conditions
Exposure to Secondhand Smoke in Neonatal Infants
Interventions
Motivational Interviewing plus Incentives, Conventional Care (CC)
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
Not listed
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 14, 2018 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Nicotine Patch as an Adjunctive Intervention to Reduce Secondhand Smoke Among NICU Families

NCT04045964
View directory record Official record
Conditions
Environmental Tobacco Smoke, Smoking Cessation
Interventions
nicotine replacement therapy (NRT), motivational advice, Quitline referral
Drug · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
Not listed
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cardiovascular Assessment of the Effects of Tobacco and Nicotine Delivery Products

NCT01964807
View directory record Official record
Conditions
Adverse Effect of Other Agents Primarily Affecting the Cardiovascular System, Initial Encounter
Interventions
Cigarette, NIDA test type with 16.6 mg nicotine, Cigarette, NIDA test type with <0.45 mg nicotine, Electronic cigarette with 18 mg/ml nicotine, Electronic Cigarette with no nicotine, Moist snuff, Sham Smoking, Secondhand cigarette smoke (SHS), Conditioned, filtered air, Sham Moist Snuff
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 50 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 27, 2021 · Synced Oct 19, 2026, 2:56 AM EDT
Recruiting Phase 4 Interventional

Modifying Progesterone and Estradiol Levels to Prevent Postpartum Cigarette Smoking Relapse and Reduce Secondhand Smoke Exposure in Infants and Children

NCT04783857
View directory record Official record
Conditions
Smoking, Smoking Cessation, Smoking Reduction
Interventions
Progesterone 200 MG Oral Capsule
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 19, 2026, 2:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Secondhand Smoke on Flight Attendant Health

NCT01639235
View directory record Official record
Conditions
Cardiopulmonary Disease
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
592 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2020
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 28, 2021 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Smoke-free Home Intervention in Permanent Supportive Housing

NCT04855357
View directory record Official record
Conditions
Smoking Cessation, Second Hand Tobacco Smoke
Interventions
Resident counselling, Staff Training
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
452 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 19, 2026, 2:56 AM EDT
Withdrawn Phase 2 Interventional

Cotinine Feedback as an Intervention to Change Parental/Caregiver Smoking Behavior Around Children With Cancer

NCT01828502
View directory record Official record
Conditions
Pediatric Cancer
Interventions
Education, Cotinine Education
Behavioral
Lead sponsor
University of South Florida
Other
Eligibility
2 Years to 12 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
10
States / cities
Wilmington, Delaware • Fort Myers, Florida • Jacksonville, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 29, 2014 · Synced Oct 19, 2026, 2:56 AM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Controlled Exposure of Healthy Nonsmokers to Secondhand and Thirdhand Cigarette Smoke

NCT04013256
View directory record Official record
Conditions
Pollution; Exposure, Smoke Inhalation, Exposure to Pollution
Interventions
Cigarette Smoke, Clean Air and Clean Clothing/Sham exposure
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 50 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 28, 2023 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional Results available

An Intervention to Reduce Second Hand Smoke Exposure Among Pediatric Emergency Patients

NCT02531594
View directory record Official record
Conditions
Smoking Cessation
Interventions
SBIRT, HHC
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
770 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 15, 2023 · Synced Oct 19, 2026, 2:56 AM EDT
Completed No phase listed Observational

Vascular Aging in Flight Attendants With Occupational Secondhand Smoke Exposure

NCT02795624
View directory record Official record
Conditions
Vascular Aging, Secondhand Smoking
Interventions
Spirometry, Pulse Wave Analysis, Peripheral arterial tonometry
Procedure
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
40 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 23, 2021 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional

A Study of Tobacco Smoke and Children With Respiratory Illnesses

NCT03062709
View directory record Official record
Conditions
Bronchiolitis, Pneumonia, Reactive Airway Disease, Asthma, Tobacco Smoking, Tobacco Cessation, Bronchopulmonary Dysplasia
Interventions
Breathe Easy Coalition written materials, Maine Tobacco Helpline, Urine cotinine testing
Behavioral · Diagnostic Test
Lead sponsor
MaineHealth
Other
Eligibility
Up to 10 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Portland, Maine
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Sustaining Smoking Cessation in Smokers With Kids With Asthma

NCT00862368
View directory record Official record
Conditions
Asthma, Smoking Cessation
Interventions
PAM, PAM-Enhanced/Asthma Counseling Phone Calls, Follow-Up Phone Calls - Child Wellness Topic
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years and older
Enrollment
573 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
5
States / cities
Fall River, Massachusetts • Pawtucket, Rhode Island • Providence, Rhode Island + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2012 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Using a Structured Tobacco Cessation Education Program

NCT00683228
View directory record Official record
Conditions
Secondhand Smoke Exposure
Interventions
Counseling
Behavioral
Lead sponsor
State University of New York - Upstate Medical University
Other
Eligibility
1 Day to 15 Days
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Dec 2, 2014 · Synced Oct 19, 2026, 2:56 AM EDT
Not listed Phase 2 Interventional

Healthy Outcomes of Pregnancy Education

NCT00381823
View directory record Official record
Conditions
Environmental Tobacco Smoke Exposure, Depression, Partner Abuse, Tobacco Smoking
Interventions
Cognitive Behavioral Therapy
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years and older · Female only
Enrollment
1,750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 29, 2006 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional

Implementation of a System-level Tobacco Treatment Intervention

NCT02816697
View directory record Official record
Conditions
Smoking Cessation, Lung Cancer
Interventions
CEASE, Usual Care Tobacco Treatment Services
Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
263 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional

Reducing Environmental Tobacco Smoke in Neonatal Intensive Care Unit (NICU) Infants' Homes

NCT00670280
View directory record Official record
Conditions
Infant Environmental Tobacco Smoke Exposure
Interventions
Motivational Interviewing intervention, Usual Care, Usual Care - Reduced Measurement
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
12 Years and older
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 6, 2016 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Project CASA in Promoting Smoke-Free Indoor Air Policy in Mexican American Households

NCT00850954
View directory record Official record
Conditions
Cigarette Smoker, Current Smoker, Currently Living With Smoker
Interventions
Informational Intervention, Smoking Cessation Intervention, Survey Administration
Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
168 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 28, 2023 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Anxiety Reduction During Office Procedural Medicine Using Aromatherapy

NCT04260399
View directory record Official record
Conditions
Anxiety, Anxiety State, Procedural Anxiety
Interventions
Lavender Aromatherapy, Placebo Aromatherapy
Other
Lead sponsor
Loyola University
Other
Eligibility
18 Years to 100 Years · Female only
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Maywood, Illinois
Source: ClinicalTrials.gov public record
Updated May 28, 2021 · Synced Oct 19, 2026, 2:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

MassCONECT (Massachusetts Community Networks to Eliminate Cancer Disparities Through Education) 4 Kids: Promoting Smoke-free Homes

NCT01537874
View directory record Official record
Conditions
Tobacco Smoking Behavior
Interventions
Motivational Interview, Usual best practices
Behavioral
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
17 Years and older
Enrollment
138 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
3
States / cities
Boston, Massachusetts • Lawrence, Massachusetts • Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 20, 2014 · Synced Oct 19, 2026, 2:56 AM EDT