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Showing 1–24 of 892 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Weight loss diet Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of High Protein Weight Loss for Seniors

NCT02730988
View directory record Official record
Conditions
Obesity, Weight Loss
Interventions
Weight Stable Group
Behavioral
Lead sponsor
Wake Forest University
Other
Eligibility
65 Years to 79 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 22, 2019 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Phase 3 Interventional Results available

Improving Reproductive Fitness Through Pretreatment With Lifestyle Modification in Obese Women With Unexplained Infertility

NCT02432209
View directory record Official record
Conditions
Infertility, Female
Interventions
Caloric Restriction, Orlistat, Moderate physical activity
Other · Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
379 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
10
States / cities
San Francisco, California • Augusta, Georgia • Southfield, Michigan + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2022 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

High Quality Protein for Assisting With Weight Loss

NCT03085511
View directory record Official record
Conditions
Obesity
Interventions
Egg breakfast (EB), Weight Loss Counseling, Weight Loss Diet, Cereal Breakfast (CB)
Behavioral
Lead sponsor
Texas Tech University
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated May 29, 2019 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Parent Involvement in Adolescent Obesity Treatment

NCT03851796
View directory record Official record
Conditions
Pediatric Obesity
Interventions
TEENS+Parents as Coaches, TEENS+Parent Weight Loss
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
12 Years to 16 Years
Enrollment
418 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Henrico, Virginia
Source: ClinicalTrials.gov public record
Updated Dec 11, 2025 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Calorie Restricted, Very Low Fat Plant-based Diet and Multi-component Exercise Program on Metabolic Health

NCT02706288
View directory record Official record
Conditions
Obesity, Insulin Resistance
Interventions
Weight loss with very low fat plant-based diet and regular exercise
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 7, 2022 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional Results available

Project Impact: An Innovative Approach to Weight Loss Maintenance

NCT02363010
View directory record Official record
Conditions
Obesity, Weight Loss, Overweight
Interventions
Gold Standard Behavior Therapy for Weight Loss, Behavior Therapy for Weight Loss with Physical Activity Emphasis, Acceptance-based Behavior Therapy for Weight Loss with PA emphasis
Behavioral
Lead sponsor
Drexel University
Other
Eligibility
18 Years to 70 Years
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Phase 2 Interventional Results available

Reduced Carbohydrate Versus Fat in Obese Subjects

NCT00846040
View directory record Official record
Conditions
Obesity
Interventions
Reduced fat diet, Reduced carbohydrate diet, Drug: f-18 fallypride, fMRI, PET
Other · Drug · Device
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 45 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 14, 2021 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional

Multi-Channel Automated Diet and Physical Activity Intervention for Pre-Diabetics

NCT01479062
View directory record Official record
Conditions
Pre-diabetes, Diabetes, Obesity
Interventions
Alive-PD, Usual Care
Behavioral
Lead sponsor
Berkeley Analytics, Inc.
Industry
Eligibility
40 Years to 79 Years
Enrollment
339 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jan 17, 2018 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Inhibitory Control Training in Eating Behaviors

NCT03599115
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Inhibitory Control Training
Behavioral
Lead sponsor
Brigham Young University
Other
Eligibility
18 Years to 45 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Provo, Utah
Source: ClinicalTrials.gov public record
Updated Jul 7, 2020 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional

Diabetes Prevention for Mexican Americans

NCT03208010
View directory record Official record
Conditions
Prediabetic State, Overweight and Obesity
Interventions
Diabetes Prevention Intervention, Enhanced Usual Care
Behavioral · Other
Lead sponsor
University of Texas at Austin
Other
Eligibility
25 Years to 65 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Rio Grande City, Texas
Source: ClinicalTrials.gov public record
Updated Oct 16, 2023 · Synced Sep 20, 2026, 7:55 AM EDT
Recruiting Not applicable Interventional

Weight Management Intervention in College: A Pilot

NCT06994923
View directory record Official record
Conditions
Obesity and Overweight
Interventions
BWLI-College, Control
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 29 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Sep 20, 2026, 7:55 AM EDT
Terminated Phase 4 Interventional

Targeting the Gut-brain Axis to Facilitate Weight Loss in High Fat Diet Consumers

NCT04614233
View directory record Official record
Conditions
Overweight and Obesity
Interventions
RiduZone (90% OEA), Placebo
Dietary Supplement · Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 9, 2025 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

STUDY: Effects of Potatoes in a Weight Loss Program

NCT01186393
View directory record Official record
Conditions
Obesity
Interventions
Control, Low Glycemic Index, High Glycemic Index
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2014
U.S. locations
2
States / cities
Davis, California • Mather, California
Source: ClinicalTrials.gov public record
Updated May 17, 2015 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Alternate Day Fasting Combined With a High Protein Background Diet

NCT03528317
View directory record Official record
Conditions
Obesity
Interventions
Alternate day fasting
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 7, 2021 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Integrating the Genetic and Metabolic Faces of Obesity

NCT00285844
View directory record Official record
Conditions
Insulin Resistance, Obesity, Metabolic Syndrome
Interventions
weight loss, thiazolidinedione
Behavioral · Drug
Lead sponsor
Stanford University
Other
Eligibility
30 Years to 65 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2012
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 3, 2024 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Phase 3 Interventional

Weight Loss and Exercise in Physically Limited Obese Elderly Subjects

NCT00146133
View directory record Official record
Conditions
Obesity, Frailty, Elderly
Interventions
diet, exercise
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
65 Years to 85 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 2, 2006 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional

Exercise Training After an Acute Blood Clot

NCT01864447
View directory record Official record
Conditions
VTE
Interventions
VTE REHABILITATION: High-Caloric Expenditure Exercise Training (HCE) and The Dietary Behavioral Weight Loss Intervention (BWL)
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
16 Years to 79 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Dec 3, 2014 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional

Translating the Diabetes Prevention Program Into a Virtual Lifestyle Management Program

NCT00867425
View directory record Official record
Conditions
Obesity, Diabetes, Cardiovascular Disease
Interventions
Virtual Lifestyle Management
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 62 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Apr 26, 2012 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional

Motivational Interviewing for Weight Loss With Young Adults

NCT01899625
View directory record Official record
Conditions
Obesity
Interventions
Brief Behavioral Weight Loss (BWL), Motivation Enhanced BWL
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 25 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 25, 2016 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional

Stress, Dietary Lapse and Weight Loss Among Adults With Type 2 Diabetes

NCT00831194
View directory record Official record
Conditions
Obesity, Type 2 Diabetes
Interventions
Personalized diet plan and PDA self reporting.
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
21 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 1, 2012 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Weight Loss Plus Omega-3 Fatty Acids or Placebo in High Risk Women

NCT02101970
View directory record Official record
Conditions
Breast Cancer
Interventions
Omega-3 Fatty Acids, Placebo Capsule, Diet and Exercise
Dietary Supplement · Other
Lead sponsor
Carol Fabian, MD
Other
Eligibility
45 Years to 70 Years · Female only
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 23, 2022 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Evaluating the Effects of a Diet and Exercise Program in People With Type 2 Diabetes or Prediabetes: (The SHAPE3 Study)

NCT00928005
View directory record Official record
Conditions
Overweight, Obesity, Type 2 Diabetes, Prediabetes
Interventions
Weight loss diet, Weight loss diet plus exercise
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
30 Years to 65 Years
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 3, 2013 · Synced Sep 20, 2026, 7:55 AM EDT
Recruiting Not applicable Interventional

Brain Outcomes With Lifestyle Change in Down Syndrome

NCT05985486
View directory record Official record
Conditions
Down Syndrome, Alzheimer Disease, Obesity
Interventions
Diet, Health Education
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 64 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Sep 20, 2026, 7:55 AM EDT
Completed Not applicable Interventional Results available

Augmented Care at Worksite for Diabetes Prevention

NCT03382873
View directory record Official record
Conditions
PreDiabetes
Interventions
Group Lifestyle Balance (GLB), Group Lifestyle Balance Plus (GLB+)
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
21 Years and older
Enrollment
208 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 10, 2024 · Synced Sep 20, 2026, 7:55 AM EDT