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Showing 1–24 of 141 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Weight loss - diet only Clear all
Completed Not applicable Interventional Results available

Dissemination of the Look Ahead Weight Management Treatment in the Military

NCT02063178
View directory record Official record
Conditions
Overweight, Obesity
Interventions
Phone-based sessions (28 total) on a structured schedule, Phone-based sessions upon request, Weight self-monitoring, Dietary and physical activity self-monitoring, Scheduled tailored interventionist feedback, Dietary goals, Meal replacements, Physical activity goals, Toolbox, Challenges, Tailored interventionist feedback upon request
Behavioral
Lead sponsor
University of Tennessee
Other
Eligibility
18 Years and older
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Feb 27, 2019 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

The Effect of Bariatric Surgery on Metabolism, the Metabolome and Microbiome in Patients With Type 2 Diabetes

NCT02762708
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Obesity
Interventions
Roux-en-Y Gastric Bypass (RYGB), Caloric Restriction, Exendin-9,39, Normal Saline
Procedure · Behavioral · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
20 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 2, 2022 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Optimal Timing of Exercise Initiation Within a Lifestyle Weight Loss Program

NCT01985568
View directory record Official record
Conditions
Obesity
Interventions
Sequential BT, Standard BT
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 55 Years
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study of the Effectiveness of Breakfast Recommendations On Reducing Body Weight

NCT01781780
View directory record Official record
Conditions
Obesity, Food Habits
Interventions
General Nutrition Recommendations, Breakfast Recommendation, No Breakfast Recommendation
Behavioral
Lead sponsor
David Allison, Phd
Other
Eligibility
20 Years to 65 Years
Enrollment
309 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
4
States / cities
Birmingham, Alabama • Denver, Colorado • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2014 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Phase 4 Interventional

Effects of Glucosamine and Chondroitin Supplementation in Women With Knee Osteoarthritis Participating in an Exercise and Weight Loss Program

NCT01271218
View directory record Official record
Conditions
Knee Osteoarthritis
Interventions
Diet, Exercise
Other
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Jan 5, 2011 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Examining Cooking as a Health Behavior

NCT03783962
View directory record Official record
Conditions
Obesity
Interventions
Active Intervention - Cooking, Demonstrations - Cooking
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated May 16, 2021 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Nutrigenomics: Personalizing Weight Loss for Obese Veterans

NCT01859403
View directory record Official record
Conditions
Obesity
Interventions
Personalized Genomics, Usual Care
Genetic
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 12, 2021 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Results available

Integrating Online Weight Management With Primary Care Support

NCT02656693
View directory record Official record
Conditions
Obesity
Interventions
Online weight management program, Population health management support
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
20 Years to 70 Years
Enrollment
840 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 4, 2020 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Delicious Eating for Life in Southern Homes

NCT04302727
View directory record Official record
Conditions
Weight Loss, Diet, Healthy, Cardiovascular Risk Factor
Interventions
Med-South Weight Loss Intervention, WW
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 75 Years
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 2, 2025 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Results available

ELIRA 2: Safety and Effectiveness of TENS Assisted Weight Loss and Appetite Suppression

NCT03936699
View directory record Official record
Conditions
Weight Loss
Interventions
Transcutaneous Nerve Stimulator (TENS), Diet & Exercise
Device · Behavioral
Lead sponsor
Elira Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 1, 2022 · Synced Sep 25, 2026, 3:52 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Low Sugar Protein Pacing, Intermittent Fasting Diet in Men and Women

NCT04327141
View directory record Official record
Conditions
Weight Loss, Gut Microbiome, Anti-Aging
Interventions
P-IF, HH
Behavioral
Lead sponsor
Skidmore College
Other
Eligibility
25 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Saratoga Springs, New York
Source: ClinicalTrials.gov public record
Updated Apr 7, 2024 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Alternative Dietary Approaches Online to Promote Tracking

NCT05049005
View directory record Official record
Conditions
Diet Quality, Weight Loss
Interventions
Simplified dietary tracking
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 11, 2022 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Results available

Coaching Veterans to Healthy Weights and Wellness

NCT00967668
View directory record Official record
Conditions
Obesity
Interventions
Small change approach to improve physical activity and diet, MOVE! Usual Care
Behavioral
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
481 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
2
States / cities
Ann Arbor, Michigan • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 23, 2015 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Parents as the Agent of Change for Childhood Obesity

NCT01197443
View directory record Official record
Conditions
Obesity
Interventions
Parent-only Group, Parent + Child Group
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
8 Years to 12 Years
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Dec 1, 2015 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Weight Loss and Cognitive Function in Adults

NCT03685305
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Hypocaloric diet with hunger reduction strategy, Hypocaloric diet without hunger reduction strategy
Behavioral
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
50 Years to 75 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Phone Coaching for Weight Loss Maintenance

NCT04293055
View directory record Official record
Conditions
Obesity, Weight Loss
Interventions
Maintenance program, Phone coaching
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 72 Years
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Dec 30, 2024 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Diet and/or Exercise-induced Weight Loss on Cardiovascular Risk Factors

NCT00588978
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
diet and/or exercise
Behavioral
Lead sponsor
Yale University
Other
Eligibility
40 Years to 65 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2008
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 16, 2020 · Synced Sep 25, 2026, 3:52 PM EDT
Recruiting Phase 2 Interventional

Resistance Exercise and Incretin Mimetic for Cardiometabolic Health in Survivors of ALL With Obesity

NCT07228741
View directory record Official record
Conditions
Acute Lymphoblastic Leukemia, Obesity
Interventions
Tirzepatide, Resistance Exercise, Lifestyle Counseling
Drug · Behavioral
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 25, 2026, 3:52 PM EDT
Withdrawn Not applicable Interventional

Families, Responsibility, Education, Support, and Health for Executive Function

NCT05165511
View directory record Official record
Conditions
Overweight and Obesity, Attention-Deficit Hyperactivity Disorder
Interventions
PBT-EF
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
8 Years to 12 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 25, 2026, 3:52 PM EDT
Not yet recruiting Not applicable Interventional

Optimization of Dietary Adherence in a Mobile Weight Loss Intervention

NCT07582536
View directory record Official record
Conditions
Overweight and/or Obesity
Interventions
Core, Switch to Simplified Diet Monitoring, Goal Autonomy/Planning, Just-in-time (JIT) Messaging, Coach Sessions
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
580 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2029
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Results available

Obalon Balloon System Pivotal IDE (SMART) Trial

NCT02235870
View directory record Official record
Conditions
Obesity
Interventions
Obalon Intragastric Balloons, Sham Device, Nutrition and Lifestyle Program
Device · Behavioral
Lead sponsor
Obalon Therapeutics, Inc.
Industry
Eligibility
22 Years to 64 Years
Enrollment
711 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
15
States / cities
Scottsdale, Arizona • Anaheim, California • Coronado, California + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2018 · Synced Sep 25, 2026, 3:52 PM EDT
Active, not recruiting Not applicable Interventional

Safety and Efficacy of Ketogenic Diet for Promoting Weight Loss in Obese Individuals With Compensated NASH Cirrhosis

NCT04383951
View directory record Official record
Conditions
NASH - Nonalcoholic Steatohepatitis, Cirrhosis, Liver
Interventions
Dietary consult for participants in the ketogenic diet arm, Dietary consult for participants in the standard of care arm
Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Sep 25, 2026, 3:52 PM EDT
Completed Not applicable Interventional Results available

Targeting Obesity to Optimize Health in Cardiac Rehab (TOPCARE)

NCT03423238
View directory record Official record
Conditions
Obesity, Weight Loss, CHD - Coronary Heart Disease
Interventions
Exercise, Health Education, Exercise Compliance, Calorie-Restricted Diet, Behavioral Modification, Weight-Loss Compliance, Dietary Counseling
Other · Behavioral · Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
40 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 22, 2021 · Synced Sep 25, 2026, 3:52 PM EDT
Recruiting Phase 4 Interventional

Optimizing Portal Hypertension With TIPS and Interval Metabolic Surgery for Advanced Liver Disease

NCT07058155
View directory record Official record
Conditions
Liver Cirrhoses, Portal Hypertension Related to Cirrhosis, Severe Obesity, TIPS
Interventions
Transjugular Intrahepatic Portosystemic Shunt (TIPS), Sleeve Gastrectomy, Anti-Obesity Pharmacotherapy (Class Effect), Lifestyle Counseling - Diet & Physical-Activity Program
Procedure · Drug · Behavioral
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2034
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 22, 2025 · Synced Sep 25, 2026, 3:52 PM EDT