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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Free Diet Clear all
Completed Phase 4 Interventional Results available

Randomized Conversion of Calcineurin-Inhibitors in Renal Allograft Recipients

NCT00866879
View directory record Official record
Conditions
Renal Transplant Rejection
Interventions
Sirolimus, Demographic Data, Medical History, and Donor Data, Blood Draws for Control Group, Blood Draws for Experimental Group, Donor Blood Draws, Donor Information, Kidney Biopsy
Drug · Other · Procedure
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 70 Years
Enrollment
275 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 27, 2019 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Not applicable Interventional Results available

Improving Adherence to Web-Based Cessation Programs: A Social Network Approach

NCT01544153
View directory record Official record
Conditions
Smoking Cessation
Interventions
WEB, Social Network, Nicotine Replacement Therapy (NRT)
Behavioral
Lead sponsor
Truth Initiative
Other
Eligibility
18 Years and older
Enrollment
5,292 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Nov 12, 2017 · Synced Sep 24, 2026, 9:31 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers Results available

Reprometabolic Syndrome Mediates Subfertility in Obesity

NCT02653092
View directory record Official record
Conditions
Obesity, Infertility, Hypogonadotropic Hypogonadotropism, Hyperinsulinemia
Interventions
Insulin, Intralipid, Dextrose, Heparin, GnRH, Hyperinsulinemic Euglycemic Clamp
Drug · Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 38 Years · Female only
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Sep 24, 2026, 9:31 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Healthy Eating for My Infant: A Community- Informed Infant Obesity Prevention Program Addressing the Impact of Maternal Mental Health on Eating and Feeding

NCT07284108
View directory record Official record
Conditions
Obesity & Overweight
Interventions
Healthy Eating for My Infant (HEMI)
Behavioral
Lead sponsor
University of Cincinnati
Other
Eligibility
2 Months to 21 Months
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Phase 2 Interventional

Impact of Grape Consumption on Brain Metabolism and Neuropsychological Performance Over 1 Year

NCT03361410
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Grape Powder, Placebo Powder
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
65 Years to 85 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 20, 2023 · Synced Sep 24, 2026, 9:31 AM EDT
Recruiting Not applicable Interventional

Feasibility and Acceptibility of a Multi-site Trial of Time Restircted Eating During Chemotheraply for Breast Cancer.

NCT07387445
View directory record Official record
Conditions
Breast Cancer Early Stage Breast Cancer (Stage 1-3), Breast Neoplasm Female, Breast Cancer
Interventions
Time restricted eating
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
25 Years to 99 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 24, 2026, 9:31 AM EDT
Recruiting Phase 2 Interventional

SMART Diets for MASLD

NCT07459504
View directory record Official record
Conditions
Metabolic-dysfunction Associated Steatotic Liver Disease
Interventions
Essential Amino Acids Supplementation intervention, Low sugar diet
Drug · Other
Lead sponsor
Michigan State University
Other
Eligibility
11 Years to 17 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Grand Rapids, Michigan
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Antimicrobial-free Production of Beef Cattle's Affect on Gut Microbiome

NCT04023604
View directory record Official record
Conditions
Diet Modification
Interventions
Controlled diet with beef raised without antibiotics, Controlled diet with beef produced in conventional systems
Other
Lead sponsor
Purdue University
Other
Eligibility
21 Years to 69 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced Sep 24, 2026, 9:31 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Healthy Eating for Reproductive Health: Greenville

NCT01716429
View directory record Official record
Conditions
Polycystic Ovarian Syndrome, Infertility, Obesity, Overweight
Interventions
Vegan diet, Low calorie diet
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 35 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Phase 3 Interventional Results available

A Trial of Two Fixed Doses of ZX008 (Fenfluramine HCl) in Children and Young Adults With Dravet Syndrome

NCT02682927
View directory record Official record
Conditions
Dravet Syndrome, Seizure Disorder
Interventions
ZX008 (Fenfluramine Hydrochloride), Matching Placebo
Drug
Lead sponsor
Zogenix International Limited, Inc., a subsidiary of Zogenix, Inc.
Industry
Eligibility
2 Years to 18 Years
Enrollment
262 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
19
States / cities
Phoenix, Arizona • Tucson, Arizona • San Diego, California + 15 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Active You: Walk, Dance, and Tone Your Abs to Reduce Your Risk of Diabetes

NCT06127251
View directory record Official record
Conditions
Obesity
Interventions
PATH Intervention, Control Group, Physical activity tracker, Dietary education
Behavioral · Device
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Sugar-sweetened Beverage Consumption Among Children

NCT04025060
View directory record Official record
Conditions
Pediatric Obesity, Diet, Food, and Nutrition
Interventions
Commercially-available caffeine-free soda, Carbonated water, Regular soda
Behavioral
Lead sponsor
George Washington University
Other
Eligibility
8 Years to 11 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 11, 2022 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Not applicable Interventional

Gluten Intolerance in Patients With Diarrhea Predominant Irritable Bowel Syndrome

NCT01094041
View directory record Official record
Conditions
Diarrhea, Diarrhea Predominant Irritable Bowel Syndrome
Interventions
Gluten free diet, Gluten rich diet
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 9, 2013 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Transdermal Absorption of Dimercaptopropane-1-Sulfonate (DMPS) and Effect on Urinary Mercury Excretion

NCT01059474
View directory record Official record
Conditions
Toxicity
Interventions
transdermal DMPS
Drug
Lead sponsor
Banner Health
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 21, 2011 · Synced Sep 24, 2026, 9:31 AM EDT
Completed No phase listed Observational

Immune Response in Celiac Disease on In-vitro Gluten Challenge

NCT01909050
View directory record Official record
Conditions
Celiac Disease
Interventions
Not listed
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 18, 2018 · Synced Sep 24, 2026, 9:31 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Bioavailability of EPA and DHA From Two Dietary Supplements

NCT01908374
View directory record Official record
Conditions
Hypertriglyceridemia
Interventions
DHA-rich fish oil versus Phospholipid-rich fish oil
Dietary Supplement
Lead sponsor
Arctic Nutrition AS
Industry
Eligibility
18 Years to 59 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 24, 2013 · Synced Sep 24, 2026, 9:31 AM EDT
Not yet recruiting Not applicable Interventional

Ketogenic Approach to Restore Muscle in Older Patients With Community-Acquired Pneumonia - KARMA-P Trial

NCT07308483
View directory record Official record
Conditions
Pneumonia
Interventions
Ketogenic feeding, Standard feeding
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
55 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Sep 24, 2026, 9:31 AM EDT
Not listed Phase 2 Interventional

Phase II Study of Cholesterol- and Cholestanol-Free Diet, Lovastatin, and Chenodeoxycholic Acid for Cerebrotendinous Xanthomatosis

NCT00004346
View directory record Official record
Conditions
Cerebrotendinous Xanthomatosis
Interventions
chenodeoxycholic acid, lovastatin
Drug
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
0 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1996
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Orally Delivered Phytochemicals on Aging and Inflammation in the Skin

NCT03289832
View directory record Official record
Conditions
Healthy Adults
Interventions
Crucera-SGS, Meriva 500-SF
Dietary Supplement
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 70 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 20, 2020 · Synced Sep 24, 2026, 9:31 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Time-restricted Eating Versus Daily Continuous Calorie Restriction on Body Weight and Colorectal Cancer Risk Markers

NCT05114798
View directory record Official record
Conditions
Time Restricted Eating, Obesity, Weight Loss, Colorectal Cancer
Interventions
Time restricted eating, Calorie Restriction
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
45 Years to 70 Years
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 24, 2026, 9:31 AM EDT
Active, not recruiting Not applicable Interventional

Impact of Chewing Gum on Bowel Preparation in Patients Undergoing Colonoscopy

NCT07320989
View directory record Official record
Conditions
Colon Cancer Screening
Interventions
Chewing Sugar-Free Gum During Bowel Preparation, Standard Bowel Prep (2L PEG-ELP), Standard Bowel Prep
Behavioral · Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
45 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Not applicable Interventional

Gluten Sensor Device to Promote Gluten Free Diet Adherence and Quality of Life in Patients With Celiac Disease

NCT03321214
View directory record Official record
Conditions
Celiac Disease
Interventions
Gluten Sensor Dose-Finding Intervention
Other
Lead sponsor
Columbia University
Other
Eligibility
13 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 6, 2020 · Synced Sep 24, 2026, 9:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Web-based Physical Activity Intervention to Promote Physical Activity

NCT05803304
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
PATH Intervention, Attention Control Intervention, Physical activity tracker, Dietary education
Behavioral · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 24, 2026, 9:31 AM EDT
Active, not recruiting No phase listed Observational

"COACH" Study: Individualized COaching in Young Adult Cancer Survivors to Encourage Healthy Behaviors

NCT05434702
View directory record Official record
Conditions
Health Behavior
Interventions
Digital Diet Diary, NHANES Food Frequency Questionnaire (FFQ), Fitbit data collection, Quality of Life questionnaire, Functional Assessment of Cancer Therapy - General (FACT-G) Questionnaire, Godin Exercise Leisure-Time questionnaire, Zoom interviews
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
20 Years to 30 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 24, 2026, 9:31 AM EDT