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ClinicalTrials.gov public records Last synced Oct 22, 2026, 1:04 AM EDT

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Showing 169–192 of 232 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Mastication Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Health Effects of SLT, Cigarette Smoking, and New Tobacco Products

NCT00469079
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine gum and lozenge, Taboka, Camel Snus
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 70 Years
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 1, 2019 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Web-based Smoking Cessation Program for Tribal College Students

NCT02050308
View directory record Official record
Conditions
Smoking Cessation
Interventions
Internet-All Nations Breath of Life (I-ANBL), Honoring the Gift of Heart Health, Nicotine gum, Patch, or Lozenge or Zyban® or Chantix®
Other · Drug
Lead sponsor
Won Choi, PhD, MPH
Other
Eligibility
18 Years and older
Enrollment
251 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
2
States / cities
Kansas City, Kansas • Pablo, Montana
Source: ClinicalTrials.gov public record
Updated Dec 7, 2021 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Food Form and Fitness on Appetite and Digestion.

NCT01070199
View directory record Official record
Conditions
High and Increasing Contribution of Energy From Beverages in the Diet May Enhance Positive Energy Balance and Weight Gain
Interventions
liquid to liquid, liquid to solid, solid to liquid, solid to solid
Behavioral
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 50 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 25, 2011 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional

Study to Improve Healthy Eating for At-Risk Older Adults

NCT01846169
View directory record Official record
Conditions
Biometrics
Interventions
Food deliveries
Behavioral
Lead sponsor
Boston Medical Center
Other
Eligibility
55 Years and older
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 25, 2014 · Synced Oct 22, 2026, 1:04 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

A Clinical Study on the Effects of a Dietary Supplement on Stress, Anxiety, Mood and Sleep in a Pediatric Population

NCT07076537
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Dietary Supplement with actives
Dietary Supplement
Lead sponsor
Olly, PBC
Industry
Eligibility
5 Years to 14 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Fair Lawn, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 22, 2025 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional

The ENHANCE Study: Exercise and Nutrition in Head And Neck CancEr Survivors

NCT05798780
View directory record Official record
Conditions
Oral Cavity Cancer, Oropharynx Cancer, Hypopharynx Cancer, Larynx Cancer
Interventions
ENHANCE Intervention - Exercise and Nutrition, ENHANCE Intervention - Nutrition Only
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Early Phase 1 Interventional

Phosphate Binding of Chitosan Chewing Gum in Patients With Chronic Kidney Disease (CKD)

NCT01341691
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
chewing gum
Other
Lead sponsor
Denver Nephrologists, P.C.
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 26, 2011 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Safety, Tolerability, and Bioavailability of Orally Administered Venglustat in Healthy Adult Participants

NCT06418620
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Venglustat
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 45 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated May 17, 2024 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Influenza Virus Vaccine Plus Vitamin A and D Supplements for Prevention of Respiratory Virus Infections in Children

NCT02649192
View directory record Official record
Conditions
Healthy Participants
Interventions
Influenza virus vaccine, Vitamins A and D, Placebo
Biological · Dietary Supplement · Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
2 Years to 8 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 29, 2019 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 2 Interventional

Tobacco Treatment Optimization and Preferences During Concurrent Cancer Treatment

NCT04634071
View directory record Official record
Conditions
Smoking Cessation, Cancer, Treatment-Related
Interventions
Varenicline, Bupropion, Long-acting nicotine replacement therapy, Low-intensity counseling, High-intensity counseling, No nicotine replacement therapy, Nicotine Replacement Products
Drug · Behavioral · Other
Lead sponsor
Joseph Valentino, MD
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
3
States / cities
Bowling Green, Kentucky • Lexington, Kentucky • Owensboro, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 3 Interventional Results available

A Study of the Effectiveness of Venetoclax in Combination With Azacitidine or Decitabine in an Outpatient Setting in Patients With Acute Myeloid Leukemia (AML) Ineligible for Intensive Chemotherapy

NCT03941964
View directory record Official record
Conditions
Acute Myeloid Leukemia (AML), Cancer
Interventions
Venetoclax, Azacitidine, Decitabine
Drug
Lead sponsor
AbbVie
Industry
Eligibility
12 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
16
States / cities
Tempe, Arizona • Denver, Colorado • Lone Tree, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 20, 2023 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 4 Interventional Results available

BREATHE 2 Clinic Stop-Smoking Treatment Outreach Study

NCT05683821
View directory record Official record
Conditions
Quitting Smoking, Smoking Cessation, Smoking, Cigarette
Interventions
Text message smoking treatment, Nicotine replacement therapy sampling, Wisconsin Tobacco QuitLine Referral, Referral to Primary Care Provider, BREATHE 2 Cessation Study, Additional modalities to learn about and request treatment
Behavioral · Drug · Combination Product
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
12,376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Long-Term Safety Study Of Tofacitinib In Patients With Juvenile Idiopathic Arthritis

NCT01500551
View directory record Official record
Conditions
Juvenile Idiopathic Arthritis
Interventions
Tofacitinib
Drug
Lead sponsor
Pfizer
Industry
Eligibility
2 Years to 18 Years
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2025
U.S. locations
43
States / cities
Little Rock, Arkansas • Loma Linda, California • Los Angeles, California + 23 more
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Gum Chewing on Appetite and Digestion

NCT01070212
View directory record Official record
Conditions
The Null Hypothesis is That Food Rheology Will Have no Effect on These Indices, The Alternate Hypothesis is That Increased Mechanical Stimulation Will Result in Stronger Satiation/Satiety and Reduced Energy Intake, It is Hypothesized That the Effects of Mastication Will be Less Evident in Obese Compared to Lean Individuals
Interventions
soft gum, firm gum, no gum
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 15, 2023 · Synced Oct 22, 2026, 1:04 AM EDT
Terminated Not applicable Interventional

Entarik Feeding Tube System Placement in Adult ICU

NCT05884216
View directory record Official record
Conditions
Nasogastric Tube
Interventions
Entarik Feeding Tube System, Entarik Feeding Tube System without monitoring
Device
Lead sponsor
Gravitas Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
2
States / cities
Bradenton, Florida • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 20, 2025 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effect of Chewing a Calcium Supplement Before Fluoride Rinse on Salivary Fluoride

NCT04620252
View directory record Official record
Conditions
Dental Caries
Interventions
Inactive supplement, Tricalcium phosphate supplement, Calcium carbonate supplement, Calcium citrate supplement, Inactive supplement and fluoride mouthwash, Calcium carbonate supplement and fluoride mouthwash, Calcium citrate supplement and fluoride mouthwash
Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 99 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 9, 2022 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 2 Interventional Results available

High Dose Vitamin D for Sickle Cell Disease

NCT01331148
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Vitamin D, Placebo
Drug · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
7 Years to 21 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 9, 2022 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional

Efficacy of Vitamin D Supplementation in Obese Children

NCT02956408
View directory record Official record
Conditions
Obesity, Pediatric, Obesity, Childhood, Obesity, Morbid, Vitamin D Deficiency
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
5 Years to 11 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Smoking Cessation in Hispanic Construction Workers

NCT02873377
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicorette Gum, Nicoderm CQ, Smoking Quitline Referral, Behavioral Smoking Cessation Counseling
Drug · Other · Behavioral
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older · Male only
Enrollment
134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 7, 2019 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

The Effect of Gum Chewing on Postoperative Ileus After Gynecologic Surgery

NCT01579175
View directory record Official record
Conditions
Postoperative Ileus
Interventions
Chewing gum
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older · Female only
Enrollment
294 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 14, 2013 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 3 Interventional Results available

A Study in Previously Untreated Chronic Lymphocytic Leukemia (CLL) Subjects, Excluding Those With the 17p Deletion, to Evaluate Debulking Regimens Prior to Initiating Venetoclax Combination Therapy

NCT03406156
View directory record Official record
Conditions
Chronic Lymphocytic Leukemia (CLL), Small Lymphocytic Lymphoma (SLL)
Interventions
Obinutuzumab, Bendamustine, Venetoclax
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 99 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
15
States / cities
Tempe, Arizona • Denver, Colorado • Kansas City, Missouri + 12 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2024 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Remineralization Effects of Hydroxyapatite Toothpaste

NCT03681340
View directory record Official record
Conditions
Caries, Dental
Interventions
Hydroxyapatite toothpaste, Fluoridated toothpaste
Other
Lead sponsor
Dr. Joachim Enax
Industry
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jul 22, 2019 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Return of Bowel Function After One or Two Level Anterior Lumbar Interbody Fusion With Chewing Gum

NCT03945461
View directory record Official record
Conditions
Spondylosis, Spondylolisthesis, Neurogenic Claudication, Foraminal Stenosis
Interventions
Chewing gum
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 85 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 26, 2024 · Synced Oct 22, 2026, 1:04 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Investigating the Bioavailability of Broccoli Extract Supplements

NCT07564674
View directory record Official record
Conditions
Diet, Healthy
Interventions
Avmacol Extra Strength with coating - 1 tablet, Avmacol chewable wafer - 2 tablets, Avmacol Extra Strength with coating - 2 tablets
Dietary Supplement
Lead sponsor
Oregon State University
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Oct 22, 2026, 1:04 AM EDT