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ClinicalTrials.gov public records Last synced Oct 23, 2026, 10:39 PM EDT

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Showing 1–24 of 504 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Protein supplement Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Gelatin, Collagen, Gummy and PINP

NCT03357432
View directory record Official record
Conditions
Collagen Synthesis
Interventions
gelatin, collagen, gummy dose
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Nov 9, 2018 · Synced Oct 23, 2026, 10:39 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

An Open-Label, Two-Arm Pilot Study of the Tolerability, Consumer Acceptability, and Exploratory Well-Being Outcomes of a Multi-Ingredient Protein Formula in Two Flavors in Healthy Adults

NCT07827014
View directory record Official record
Conditions
Healthy
Interventions
Vanilla Protein Formula, Chocolate Protein Formula
Dietary Supplement
Lead sponsor
Qualia Life Sciences
Industry
Eligibility
21 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Carlsbad, California
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 23, 2026, 10:39 PM EDT
Recruiting Not applicable Interventional

Effects of Ketosis on Brain Function in Patients With T1DM

NCT04219709
View directory record Official record
Conditions
Type1diabetes
Interventions
Very low carbohydrate diet, Standard carbohydrate diet
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 40 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2024 · Synced Oct 23, 2026, 10:39 PM EDT
Withdrawn Early Phase 1 Interventional

The Role of Glutathione Deficiency and MSIDS Variables in Long COVID-19

NCT05371288
View directory record Official record
Conditions
COVID-19
Interventions
NAC (N-acetyl cysteine), Alpha lipoic acid (ALA), liposomal glutathione (GSH)
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Nov 5, 2024 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Not applicable Interventional

Feeding Trial to Determine How Combinations of Different Dietary Bioactive Ingredients Influence High Density Lipoprotein (HDL) Metabolism

NCT01803594
View directory record Official record
Conditions
Dyslipidemia
Interventions
Krill Oil, Lutein, Nicotinic acid, Dairy phospholipids, Control
Dietary Supplement · Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Sep 30, 2022 · Synced Oct 23, 2026, 10:39 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Graded Protein Intake on Body Composition in Older Adults

NCT04845282
View directory record Official record
Conditions
Sarcopenia
Interventions
Graded Protein plus Resistance Training, RDA Protein plus Resistance Training
Dietary Supplement
Lead sponsor
Wake Forest University
Other
Eligibility
55 Years to 110 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 27, 2022 · Synced Oct 23, 2026, 10:39 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Cardiac and Vascular Responses to Creatine Supplementation in Elderly Men

NCT05329480
View directory record Official record
Conditions
Cardiac Function and Hemodynamics
Interventions
Creatine Monohydrate, Maltodextrin
Dietary Supplement
Lead sponsor
Radford University
Other
Eligibility
55 Years to 80 Years · Male only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Oct 23, 2026, 10:39 PM EDT
Recruiting Not applicable Interventional

Whey Protein Ingestion and Glucose Control in Pre- and Post Diabetic Individuals

NCT06694155
View directory record Official record
Conditions
Prediabetes / Type 2 Diabetes
Interventions
Whey Protein Isolate Crossover, Placebo
Dietary Supplement
Lead sponsor
University of Arkansas
Other
Eligibility
50 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Randomized Placebo Controlled Clinical Study of an Oral Product in Subjects With Menopausal Symptoms

NCT06787443
View directory record Official record
Conditions
Menopausal Symptoms
Interventions
Placebo, Dietary Supplement with Proprietary Herbal Extract Blend and GABA
Dietary Supplement
Lead sponsor
Olly, PBC
Industry
Eligibility
40 Years to 65 Years · Female only
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 22, 2025 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Insect-derived Protein Supplements on Protein Synthesis and mTORC1 Activation

NCT05457218
View directory record Official record
Conditions
Effect of Food Supplement
Interventions
Whey protein, IPC80, Whole Buffalo Powder
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 30 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated May 8, 2026 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Anatabine on Elevated Blood Levels of C-reactive Protein

NCT01607619
View directory record Official record
Conditions
Inflammation
Interventions
Anatabine
Dietary Supplement
Lead sponsor
Roskamp Institute Inc.
Other
Eligibility
18 Years and older
Enrollment
117 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
3
States / cities
Sarasota, Florida • Flint, Michigan • Shelby, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 28, 2013 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Personalized Lifestyle Intervention for Improving Functional Health Outcomes Using N-of-1 Tent-Umbrella-Bucket Design

NCT04005456
View directory record Official record
Conditions
Health, Subjective, Gastrointestinal Dysfunction, Cardiovascular Risk Factor, Autoimmune Diseases, Dental Diseases, Hormone Disturbance, Neurocognitive Dysfunction
Interventions
Supplements and/or medical foods, Behavioral change support program, Food plan
Dietary Supplement · Behavioral · Other
Lead sponsor
Metagenics, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Gig Harbor, Washington
Source: ClinicalTrials.gov public record
Updated Oct 30, 2023 · Synced Oct 23, 2026, 10:39 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Strength-enhancing Effect of Whey Protein Supplementation Following Resistance Exercise in Adolescent Males

NCT02162459
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
Olympia Eye Clinic
Other
Eligibility
16 Years to 19 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jun 12, 2014 · Synced Oct 23, 2026, 10:39 PM EDT
Active, not recruiting Not applicable Interventional Results available

Early Protein Supplementation in Extremely Preterm Infants Fed Human Milk

NCT04325308
View directory record Official record
Conditions
Prematurity; Extreme, Feeding Disorder Neonatal, Breast Milk Expression, Growth Failure, Microbial Colonization
Interventions
Protein-enriched human milk diet, Usual human milk diet
Procedure
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
1 Day to 4 Days
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Not applicable Interventional

Modification of Asthma With Soy Isoflavone

NCT00741208
View directory record Official record
Conditions
Asthma
Interventions
Soy Isoflavone
Dietary Supplement
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 8, 2011 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Phase 4 Interventional Results available

Mechanism of Action Study for Psoriasis

NCT00932113
View directory record Official record
Conditions
Psoriasis
Interventions
Methotrexate, Adalimumab (Humira)
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 31, 2017 · Synced Oct 23, 2026, 10:39 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Prandial Metabolic Phenotyping in Sarcopenic Older Adults Comparing Plant Based and Whey Based Protein

NCT06628349
View directory record Official record
Conditions
Protein Metabolism
Interventions
Whey Protein Isolate 90%, Soy Protein Isolate (90% Protein), Organic Pea Protein Isolate, Placebo (Water)
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
50 Years to 95 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Oct 23, 2026, 10:39 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Safety and Tolerability Evaluation of IgG Binding Protein LT

NCT07824011
View directory record Official record
Conditions
Safety and Tolerability in Healthy Volunteers
Interventions
IgG Binding Protein LT, Placebo
Dietary Supplement
Lead sponsor
Bactolife A/S
Industry
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Glutathione on Immunity in Individuals Training for a Marathon

NCT03725241
View directory record Official record
Conditions
Healthy
Interventions
Glutathione Supplement, Placebo Supplement
Dietary Supplement
Lead sponsor
University of North Texas, Denton, TX
Other
Eligibility
19 Years to 45 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Denton, Texas
Source: ClinicalTrials.gov public record
Updated Nov 19, 2020 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Whey Protein Supplements on Markers of Exercise-induced Muscle Damage in Resistance-trained Individuals

NCT05100459
View directory record Official record
Conditions
Muscle Damage, Muscle Soreness
Interventions
Pasture-raised whey protein, Conventional whey protein, Placebo
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Oct 23, 2026, 10:39 PM EDT
Not listed Not applicable Interventional

Supplemental Adjuvants for Intracellular Nutrition and Treatment

NCT00893724
View directory record Official record
Conditions
Neovascular Age-related Macular Degeneration, Diabetic Macular Edema
Interventions
Neutral pills with no medicinal effect, Inosine; Tocopherols, Tocotrienol, CoQ10 combination capsule; Niacinamide SR; Viatmin C; N-acetyl Cysteine; Complete Multivitamin with all minerals, Inosine; Tocopherol, Tocotrienol, CoQ10 combination capsule; Niacinamide; Vitamin C; N-acetyl Cysteine; Complete Multivitamin with all minerals; Minocycline
Drug · Dietary Supplement
Lead sponsor
Mid-Atlantic Retina Consultations, Inc.
Other
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Jul 20, 2011 · Synced Oct 23, 2026, 10:39 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Nutritional Supplementation in the Elderly With Weight Loss

NCT04350762
View directory record Official record
Conditions
Sarcopenia
Interventions
Protein shake + Fish Oil
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
65 Years and older
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 6, 2023 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Phase 4 Interventional Results available

Sitagliptin in Non-Diabetic Patients Undergoing Cardiac Surgery

NCT02443402
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Sitagliptin, Placebo, Regular Human Insulin, Insulin glargine, Supplemental insulin (Insulin lispro), Supplemental insulin (Insulin aspart)
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 80 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
4
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 6, 2018 · Synced Oct 23, 2026, 10:39 PM EDT
Completed Not applicable Interventional

Immune Enhancement for Immunological Non-responders to ART

NCT01806870
View directory record Official record
Conditions
HIV
Interventions
Zinc and SAMe
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
21 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
2
States / cities
Atlanta, Georgia • Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 18, 2019 · Synced Oct 23, 2026, 10:39 PM EDT