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Showing 1–24 of 495 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: protein supplement Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Soy, Bone and Health in College Females

NCT00244478
View directory record Official record
Conditions
Osteoporosis, Obesity
Interventions
Soy Protein Dietary Supplement, Placebo
Dietary Supplement
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 19 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 24, 2015 · Synced Sep 3, 2026, 4:37 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Immune Defense Protein Impact On Respiratory Immune Outcomes

NCT07431840
View directory record Official record
Conditions
Upper Respiratory Disease, Influenza, Viral Upper Respiratory Infection
Interventions
Immune Defense Protein 50mg Dose, IDP 200mg Dose, Matching Placebo
Dietary Supplement
Lead sponsor
Quantec Ltd
Industry
Eligibility
60 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 3, 2026, 4:37 PM EDT
Not yet recruiting Not applicable Interventional

Fueling Labor: Protein Supplementation for Intrapartum Glucose Control

NCT07571343
View directory record Official record
Conditions
Diabetes During Pregnancy
Interventions
High-Protein Beverage (Genius Gourmet Sparkling Protein Water), Standard Clear Liquid Diet, Continuous Glucose Monitoring (Abbott Freestyle Libre)
Dietary Supplement · Other · Device
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 3, 2026, 4:37 PM EDT
Completed Not applicable Interventional

Effect of Revival Soy on Fibromyalgia Pain

NCT00279942
View directory record Official record
Conditions
Fibromyalgia
Interventions
Soy, Placebo
Dietary Supplement · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 76 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 5, 2012 · Synced Sep 3, 2026, 4:37 PM EDT
Recruiting Not applicable Interventional

Impact of NMES and HPRO on Recovery After SAH- Pilot Study

NCT03201094
View directory record Official record
Conditions
Subarachnoid Hemorrhage, Muscle Atrophy, Inflammation, Nutritional and Metabolic Disease
Interventions
Neuromuscular Electrical Stimulation (NMES), High Protein Supplementation
Device · Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Sep 3, 2026, 4:37 PM EDT
Recruiting Not applicable Interventional

Carbohydrate Beta Cell Function and Glucose Control in Children With Diabetes

NCT05899166
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Ketogenic diet, food delivery and education, Standard diet, food delivery and education
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
5 Years to 12 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 23, 2025 · Synced Sep 3, 2026, 4:37 PM EDT
Not yet recruiting Not applicable Interventional

Optimizing Adaptive Intensive Behavioral Therapy for Obesity During the Transition to Older Adulthood

NCT07446907
View directory record Official record
Conditions
Obesity & Overweight, Sarcopenia
Interventions
High Protein Diet Counceling, Standard Protein Diet Counceling, Protein Supplement, Supervised Exercise
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
50 Years to 75 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 2, 2026 · Synced Sep 3, 2026, 4:37 PM EDT
Completed Not applicable Interventional

Effects of Exercise in People With Tetraplegia

NCT01202019
View directory record Official record
Conditions
Spinal Cord Injury, Tetraplegia
Interventions
Circuit Resistance Training (CRT)
Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jul 21, 2014 · Synced Sep 3, 2026, 4:37 PM EDT
Completed Not applicable Interventional Results available

Health Effects of oraL Protein Supplements in HD (The HELPS-HD Trial)

NCT02933151
View directory record Official record
Conditions
End Stage Renal Disease
Interventions
Nutritional Supplement
Dietary Supplement
Lead sponsor
Dialysis Clinic, Inc.
Industry
Eligibility
18 Years and older
Enrollment
10,457 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
2
States / cities
Jacksonville, Florida • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 4, 2024 · Synced Sep 3, 2026, 4:37 PM EDT
Terminated Phase 2 Interventional

An Outpatient Study Investigating Non-prescription Treatments for COVID-19

NCT04621149
View directory record Official record
Conditions
COVID-19
Interventions
chlorine dioxide, zinc acetate, Famotidine, placebo, lactoferrin, green tea extract
Other · Dietary Supplement · Drug
Lead sponsor
Profact, Inc.
Other
Eligibility
20 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 29, 2022 · Synced Sep 3, 2026, 4:37 PM EDT
Withdrawn Not applicable Interventional

Pilot Study: Combining Nutritional Supplements With Standard Antidepressant to Treat Depression.

NCT02223299
View directory record Official record
Conditions
Depression
Interventions
L-tyrosine, L-Tryptophan, deplin, Placebo A, Placebo B
Dietary Supplement · Drug · Other
Lead sponsor
John D. Dingell VA Medical Center
Federal
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 20, 2020 · Synced Sep 3, 2026, 4:37 PM EDT
Recruiting Not applicable Interventional

Symptoms of Polycystic Ovarian Syndrome Ameliorated by Keto-Adaptation Pilot

NCT07227363
View directory record Official record
Conditions
PCOS (Polycystic Ovary Syndrome)
Interventions
Ketogenic diet, Exogenous Ketone Supplement
Other · Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 3, 2026, 4:37 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Can Biotin Supplementation be Used to Mask hCG Abuse?

NCT05450900
View directory record Official record
Conditions
Healthy
Interventions
Choriogonadotropin Alpha, biotin, Microcellulose filler
Drug · Dietary Supplement · Other
Lead sponsor
Sports Medicine Research and Testing Laboratory
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 2, 2023 · Synced Sep 3, 2026, 4:37 PM EDT
Completed Phase 2 Interventional

N-Acetylcysteine and Milk Thistle for Treatment of Diabetic Nephropathy

NCT00915200
View directory record Official record
Conditions
Diabetic Nephropathies, Proteinuria, Oxidative Stress
Interventions
N-acetylcysteine, silibin, high-dose silibin, N-acetylcysteine placebo, silibin placebo
Dietary Supplement
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 70 Years
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 26, 2016 · Synced Sep 3, 2026, 4:37 PM EDT
Completed Phase 2 Interventional Results available

Pemetrexed and Gemcitabine in Patients With Advanced Non-Small Cell Lung Cancer

NCT00193414
View directory record Official record
Conditions
Lung Cancer
Interventions
Pemetrexed, Gemcitabine
Drug
Lead sponsor
SCRI Development Innovations, LLC
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 2, 2022 · Synced Sep 3, 2026, 4:37 PM EDT
Completed Not applicable Interventional

Therapeutic Diets in Alzheimer's Disease

NCT03860792
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Ketogenic Diet, Therapeutic Lifestyles Changes Diet
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
50 Years to 90 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Fairway, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 3, 2026, 4:37 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Determine How Consumption of Dairy Fat as Cheese Influences Inflammation-Phase 2

NCT01803633
View directory record Official record
Conditions
Metabolic Syndrome, Obesity
Interventions
Cheddar cheese, Vegan cheese
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2027
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced Sep 3, 2026, 4:37 PM EDT
Completed Phase 1 Interventional

Nutrition, Neuromuscular Electrical Stimulation (NMES) and Secondary Progressive Multiple Sclerosis (SPMS)

NCT01381354
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Progressive exercise, Neuromuscular electrical stimulation delivered using the electrical therapy device EMPI 300 PV, Modified paleolithic diet, Omega 3 fatty acids, Full Spectrum vitamin, Essential - hydroxytyrosol, Maltodextrin fiber supplement, Mineral boost (magnesium), Niacinamide, Methyl B12, Taurine, creatine, thiamine, riboflavin, N acetylcysteine, alpha lipoic acid, L acetyl carnitine, methyl folate, coenzyme Q, meditation, self massage, learning, Coconut oil
Other · Device · Dietary Supplement + 1 more
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 25, 2018 · Synced Sep 3, 2026, 4:37 PM EDT
Not listed Not applicable Interventional

Study of Arginine Metabolism and Nitric Oxide Formation in Relation to Glutamine Supply in Severely Burned Patients

NCT00216970
View directory record Official record
Conditions
Burns
Interventions
Alteration in nutritional support
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 12, 2009 · Synced Sep 3, 2026, 4:37 PM EDT
Completed Phase 1Phase 2 Interventional Results available

N-acetylcysteine to Reduce Oxidative Stress and Improve Endothelial Function in HIV-infected Older Adults

NCT01962961
View directory record Official record
Conditions
HIV, Endothelial Dysfunction, Oxidative Stress
Interventions
PharmaNAC (N-acetylcysteine), Matching placebo
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
50 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 7, 2016 · Synced Sep 3, 2026, 4:37 PM EDT
Recruiting Phase 1Phase 2 Interventional

Effects of Carnosine In Patients With Peripheral Arterial Disease Patients

NCT06480760
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Carnosine
Drug
Lead sponsor
Shahid Baba
Other
Eligibility
40 Years to 80 Years
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
3
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated May 28, 2025 · Synced Sep 3, 2026, 4:37 PM EDT
Not yet recruiting Phase 2 Interventional

Effect of Metabolic Modulation on a Post-acute COVID-19 Vaccination Syndrome (PACVS) Cohort

NCT06967428
View directory record Official record
Conditions
Vaccine Adverse Reaction, Post Acute Covid-19 Vaccination Syndrome
Interventions
Combined metabolic modulator, Rice Protein Powder with Vitamin C
Combination Product · Dietary Supplement
Lead sponsor
Independent Medical Alliance
Other
Eligibility
16 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 12, 2025 · Synced Sep 3, 2026, 4:37 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Effect of a Daily Supplement on Plasma PAI-1 Levels

NCT07469475
View directory record Official record
Conditions
Aging, Endothelial Dysfunction, Senescence
Interventions
Supplement with ginger extract, L-citrulline, Paullinia cupana, and muira puama
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
2
States / cities
Los Angeles, California • Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 3, 2026, 4:37 PM EDT
Terminated Not applicable Interventional

Vitamin E Treatment for Long-Chain 3-Hydroxyacyl Coenzyme A (CoA) Dehydrogenase (LCHAD) Associated Neuropathy

NCT00840112
View directory record Official record
Conditions
Peripheral Neuropathy, Mitochondrial Trifunctional Protein Deficiency
Interventions
Vitamin E supplement
Dietary Supplement
Lead sponsor
Oregon Health and Science University
Other
Eligibility
7 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 20, 2015 · Synced Sep 3, 2026, 4:37 PM EDT