Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 21, 2026, 8:25 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 232 matching trials from the live ClinicalTrials.gov search.
Terminated Phase 4 Interventional Accepts healthy volunteers

Testing Pharmacological Therapies for Pregnant Smokers

NCT00224419
Conditions
Smoking, Pregnancy
Interventions
Motivational interviewing for smoking cessation, Cognitive behaviors therapy, CBT + NRT
Behavioral · Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
181 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2003
U.S. locations
2
States / cities
Durham, North Carolina • Fayetteville, North Carolina
Conditions
Change in Bone Mineral Density, Bone Loss
Interventions
drospirenone 4 mg oral tablet or drospirenone 3.5 mg chewable tablet
Drug
Lead sponsor
Insud Pharma
Industry
Eligibility
14 Years to 45 Years · Female only
Enrollment
1,536 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
27
States / cities
Phoenix, Arizona • Aurora, Colorado • Boynton Beach, Florida + 17 more
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy of Oral Tobacco Products Compared to a Medicinal Nicotine

NCT00710034
Conditions
Tobacco Use Disorder
Interventions
Oral tobacco, Nicotine Gum
Other · Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 70 Years
Enrollment
391 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
2
States / cities
Minneapolis, Minnesota • Eugene, Oregon
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Quercetin, Placebo - sugar chew
Drug · Other
Lead sponsor
University of Michigan
Other
Eligibility
40 Years to 80 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Ann Arbor, Michigan
Completed No phase listed Observational Accepts healthy volunteers

Chewing Capability Study for Infants and Toddlers

NCT02156986
Conditions
Healthy
Interventions
Not listed
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
9 Months to 36 Months
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Phase 1 Interventional Accepts healthy volunteers

Comparing Over-the-counter Dry Mouth Remedies After Radiation

NCT00595933
Conditions
Xerostomia
Interventions
sugar-free chewing gum, chewing gum, mouth rinse, mouth spray
Other · Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
13 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Completed Phase 2Phase 3 Interventional Results available

CPT and Smoking Cessation

NCT01901848
Conditions
Stress Disorders, Post-Traumatic, Smoking
Interventions
Cognitive Processing Therapy (CPT), Bupropion, nicotine replacement therapy (NRT), Integrated Care for Smoking Cessation (ICSC), smokefreeVET
Behavioral · Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Completed Phase 4 Interventional Results available

Identifying Treatments to Motivate Smokers to Quit

NCT01122238
Conditions
Smoking, Smoking Cessation, Motivation, Nicotine Dependence
Interventions
Nicotine Patch, Nicotine Gum, Motivational Interviewing, Smoking Reduction, No Intervention, Nicotine Patch + Nicotine Gum
Drug · Behavioral · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 99 Years
Enrollment
517 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Madison, Wisconsin
Conditions
Tobacco Use
Interventions
VLN menthol cigarettes (A), Usual Brand Menthol Cigarettes (B), Nicotine gum (C)
Other · Drug
Lead sponsor
22nd Century Group, Inc.
Industry
Eligibility
22 Years to 65 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Overland Park, Kansas
Conditions
Smoking Cessation, Tobacco Use Disorder
Interventions
Nicotine Replacement Therapies, Nicotine patch, Folic Acid
Drug · Dietary Supplement
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
13 Years to 18 Years
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Anemia, Renal Insufficiency, Chronic, Renal Anemia
Interventions
Daprodustat
Drug
Lead sponsor
USRC Kidney Research
Network
Eligibility
18 Years and older
Enrollment
161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Lone Tree, Colorado
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin Supplementation After Bariatric Surgery

NCT02686905
Conditions
Complications of Bariatric Procedures, Avitaminosis
Interventions
Chewable Multivitamin with Iron, PatchMD Vitamin D3/Calcium Patch, PatchMD Multivitamin Patch, PatchMD B12 Energy Plus Patch, Chewable Calcium, Quick Dissolve B12
Dietary Supplement
Lead sponsor
California State Polytechnic University, Pomona
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Brea, California
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Research and Innovation to Stop E-cigarette/Vaping in Young Adults

NCT04974580
Conditions
Nicotine Dependence, E-Cig Use
Interventions
Nicotine patch, Phone Counseling, Digital Coaching
Drug · Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 24 Years
Enrollment
508 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Completed Not applicable Interventional Accepts healthy volunteers

Chewing Gum for Weight Loss

NCT00971347
Conditions
Obesity, Overweight, Weight Loss
Interventions
Extra sugar-free chewing gum sticks, nutrition brochure
Other · Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years to 50 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Birmingham, Alabama
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Pilot Study Evaluating Nicotine Lozenges and Self Help

NCT00888459
Conditions
Smokeless Tobacco Use
Interventions
nicotine replacement therapy, placebo NRT
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Male only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
2
States / cities
Rochester, Minnesota • Eugene, Oregon
Conditions
Neurofibromatosis Type II
Interventions
Everolimus (RAD001) , Afinitor®
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
3 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
New York, New York
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of Nicotine and Attention on Frequency Tuning in Auditory Cortex

NCT05018117
Conditions
Aging
Interventions
Nicotine gum, Placebo gum
Drug · Other
Lead sponsor
University of California, Berkeley
Other
Eligibility
18 Years to 85 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Berkeley, California
Conditions
Diabetes, PreDiabetes
Interventions
Oral application of miracle fruit pill, Oral application of sugar candy
Other
Lead sponsor
Queens College, The City University of New York
Other
Eligibility
45 Years to 75 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Bayside, New York
Completed Phase 3 Interventional Results available

Fesoterodine Flexible Dose Study

NCT00536484
Conditions
Overactive Bladder
Interventions
Fesoterodine, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
896 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
95
States / cities
Mobile, Alabama • Chandler, Arizona • Peoria, Arizona + 81 more
Completed Not applicable Interventional Accepts healthy volunteers

QuitAid Pilot Feasibility Trial

NCT05649241
Conditions
Smoking Cessation
Interventions
Nicotine patch, Nicotine gum, Medication Therapy Management
Drug · Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Charlottesville, Virginia
Terminated Not applicable Interventional Accepts healthy volunteers

Impact of Sleep Deprivation and Caffeine in Medical Professionals

NCT04273841
Conditions
Sleep Deprivation, Performance
Interventions
Military Energy Gum, Placebo Gum
Dietary Supplement
Lead sponsor
Walter Reed Army Institute of Research (WRAIR)
Federal
Eligibility
18 Years to 50 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2024
U.S. locations
1
States / cities
Silver Spring, Maryland
Completed No phase listed Observational Accepts healthy volunteers

Availability of Lipids in Almonds in Healthy Individuals

NCT00768417
Conditions
Obesity, Overweight
Interventions
10 chews, 25 Chews, 40 Chews
Behavioral
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
West Lafayette, Indiana
Conditions
Veterans, Tobacco Use Disorder, Cigarette Smoking, Tobacco Dependence
Interventions
Motivation-Phase Varenicline, Motivation-Phase Nicotine Mini-Lozenge, Cessation-Phase Combination Nicotine Replacement Therapy (NRT), Cessation-Phase Varenicline, Motivation-Phase Counseling, Cessation-Phase Counseling
Drug · Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
4
States / cities
San Diego, California • Minneapolis, Minnesota • Durham, North Carolina + 1 more
Terminated Phase 3 Interventional Accepts healthy volunteers

Caries Transmission Prevention in Alaska Native Infants

NCT00067340
Conditions
Dental Caries
Interventions
Chlorhexidine mouth rinse, Xylitol chewing gum
Drug · Other
Lead sponsor
University of Washington
Other
Eligibility
Female only
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Seattle, Washington