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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional

Trial of Carbamylation in Renal Disease-Modulation With Amino Acid Therapy

NCT02472834
View directory record Official record
Conditions
End Stage Renal Failure on Dialysis
Interventions
Amino acid supplementation NephrAmine®
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 23, 2021 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dietary Nitrate and Physiological Aging

NCT02593305
View directory record Official record
Conditions
Aging
Interventions
Super Beets, Super Beets Placebo
Dietary Supplement
Lead sponsor
Darren P Casey
Other
Eligibility
18 Years to 85 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Oct 13, 2019 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Asthma and Obesity Diet Versus Exercise

NCT03644355
View directory record Official record
Conditions
Obesity, Childhood, Asthma in Children, Inflammatory Response, Metabolic Syndrome, Nutrition Poor, Physical Activity, Behavior, Eating, Molecular Biology, Restriction Fragment Length Polymorphisms, Maternal Exposure, Genetic Change
Interventions
Lifestyle counseling
Behavioral
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
13 Years to 19 Years · Female only
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 22, 2018 · Synced Sep 25, 2026, 4:26 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Trial of Antibody Responses by Vitamin Supplementation

NCT03859687
View directory record Official record
Conditions
Healthy Participants
Interventions
Vitamin A supplementation, No vitamin A supplementation
Biological
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
1 Year to 4 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Sep 25, 2026, 4:26 PM EDT
Not yet recruiting Phase 2 Interventional

Nicotinamide for Retinal Protection in Primary Open-Angle Glaucoma (NADIR Trial)

NCT07808333
View directory record Official record
Conditions
Glaucoma, Open-angle, Primary Open Angle Glaucoma (POAG)
Interventions
Nicotinamide, Standard Glaucoma Therapy
Drug · Other
Lead sponsor
University of Chicago
Other
Eligibility
40 Years to 80 Years
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 25, 2026, 4:26 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Effect of Early Limited Formula on Total Serum Bilirubin Among Newborns With Hyperbilirubinemia

NCT01330667
View directory record Official record
Conditions
Hyperbilirubinemia, Neonatal
Interventions
Nutramigen Infant Formula
Dietary Supplement
Lead sponsor
University of California, San Francisco
Other
Eligibility
36 Hours to 96 Hours
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 14, 2018 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Not applicable Interventional

Fish Oil in Total Hip Replacement Randomized Clinical Trial

NCT04360239
View directory record Official record
Conditions
Total Hip Arthroplasty
Interventions
Fish Oil
Dietary Supplement
Lead sponsor
Jeffrey L Stimac MD
Other
Eligibility
18 Years to 99 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced Sep 25, 2026, 4:26 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Identification of Critical Thermal Environments for Aged Adults

NCT04284397
View directory record Official record
Conditions
Aging
Interventions
Low dose ASA, Control
Drug · Other
Lead sponsor
Penn State University
Other
Eligibility
18 Years and older
Enrollment
190 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Protein Supplementation on Lean Body Mass Recovery From Extreme Military Training

NCT02057094
View directory record Official record
Conditions
Military Operational Stress Reaction, Malnutrition (Calorie), Weight Loss, Muscle Wasting
Interventions
Protein, High-Protein, and Control
Dietary Supplement
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years and older · Male only
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Marine Corps Base Camp Lejeune, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Exploratory Investigation of Dietary Supplementation and the Effect on Common Symptoms of Hormonal Imbalance

NCT05328609
View directory record Official record
Conditions
Hormone Disturbance
Interventions
Semaine Hormonal Imbalance & The Daily
Dietary Supplement
Lead sponsor
Semaine Health
Industry
Eligibility
18 Years to 55 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Oct 25, 2022 · Synced Sep 25, 2026, 4:26 PM EDT
Recruiting Not applicable Interventional

Effect of Fiber Supplementation on the Need for Medication With Gestational Diabetes

NCT06867861
View directory record Official record
Conditions
Gestational Diabetes Mellitus (GDM)
Interventions
Fiber
Dietary Supplement
Lead sponsor
Eastern Virginia Medical School
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 9, 2025 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Phase 2Phase 3 Interventional

Oral Calcium Supplementation in Labor

NCT07056062
View directory record Official record
Conditions
Uterine Contraction, Labor Complication, Labor Active Dilated Cm, Labor Dystocia, Labor Duration, Labor, Labor Delivery
Interventions
Calcium carbonate
Drug
Lead sponsor
Arrowhead Regional Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Colton, California
Source: ClinicalTrials.gov public record
Updated Jul 8, 2025 · Synced Sep 25, 2026, 4:26 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

A Randomized, Double-Blind Study to Assess the Effect of a Postbiotic on Oxidative Stress and Exercise Performance

NCT06795425
View directory record Official record
Conditions
Oxidative Stress, Healthy, Exercise-induced Muscle Damage, Exercise-induced Muscle Soreness, Immune Function, Gut Health, Microbiome Analysis, Exercise Performance, Exercise Metabolism
Interventions
Postbiotic Active Lifestyle Blend, Placebo
Dietary Supplement · Other
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 45 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Sep 25, 2026, 4:26 PM EDT
Recruiting Phase 2 Interventional

Essential Amino Acid Supplementation for Femoral Fragility Fractures

NCT06050668
View directory record Official record
Conditions
Femoral Fracture, Fragility Fracture, Muscle Atrophy
Interventions
Essential Amino Acid Supplementation
Combination Product
Lead sponsor
Michael C Willey
Other
Eligibility
65 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Iowa City, Iowa • Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Aronia Berry Consumption on Inflammation, Metabolites, and the Gut Microbiome

NCT05255718
View directory record Official record
Conditions
Inflammation, Metabolic Disorder, Hypertriglyceridemia
Interventions
Aronia juice, Placebo
Dietary Supplement · Other
Lead sponsor
Montana State University
Other
Eligibility
18 Years to 60 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Bozeman, Montana
Source: ClinicalTrials.gov public record
Updated Mar 12, 2024 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin D Absorbance Study - Clinical Trial of the Absorbance of Nano Liquid D3

NCT04885803
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Softgel Vitamin D3, Nano Liquid Vitamin D3, 25(OH)D Blood Serum Test, Placebo Control
Dietary Supplement · Diagnostic Test · Other
Lead sponsor
Inspired Life Medical, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Le Sueur, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 23, 2021 · Synced Sep 25, 2026, 4:26 PM EDT
Not listed Not applicable Interventional

Effect of Vitamin D Status and Repletion on Postoperative Total Joint Arthroplasty Complications

NCT04229368
View directory record Official record
Conditions
Hip Arthropathy, Knee Arthropathy, Vitamin D Deficiency
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 15, 2023 · Synced Sep 25, 2026, 4:26 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Exogenous Ketones on Cognitive Function in Older Adults With Prediabetes?

NCT07546409
View directory record Official record
Conditions
Prediabetes, Healthy (Controls)
Interventions
Ketone Monoester (KE), Placebo
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
60 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Phase 2 Interventional Results available

Short-term Behavioral Effects of Cholesterol Therapy in Smith-Lemli-Opitz Syndrome

NCT00114634
View directory record Official record
Conditions
Smith-Lemli-Opitz Syndrome
Interventions
Egg yolk preparation with cholesterol, Egg substitute, without cholesterol
Dietary Supplement
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
4 Years to 17 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 28, 2016 · Synced Sep 25, 2026, 4:26 PM EDT
Recruiting Phase 1 Interventional

Levothyroxine Supplementation for Heart Transplant Recipients

NCT06428097
View directory record Official record
Conditions
Heart Transplant Failure, Heart Transplant Infection
Interventions
Levothyroxine, Normal saline
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Not applicable Interventional Results available

Capnography-Assisted Learned Monitored (CALM) Breathing Therapy for COPD

NCT04786184
View directory record Official record
Conditions
COPD
Interventions
CALM Breathing, Traditional outpatient PR
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Sep 25, 2026, 4:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Role of the Gut Microbiota in Estrogen Metabolism and Dietary Flax as a Potential Modulator.

NCT03183102
View directory record Official record
Conditions
Menopause
Interventions
Flaxseed
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
20 Years to 40 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 30, 2024 · Synced Sep 25, 2026, 4:26 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The Gut-Brain Axis During Neurorehabilitation; Prebiotic Treatment to Alter the Gut Microbiome and Neurologic Symptoms

NCT06607523
View directory record Official record
Conditions
Brain Injuries
Interventions
Inulin
Dietary Supplement
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Sep 25, 2026, 4:26 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Sabroxy® Supplementation on Insulin Resistance and Cognitive Function in Adults With Mild Cognitive Impairment and Insulin Resistance

NCT07220694
View directory record Official record
Conditions
Insulin Resistance, Mild Cognitive Impairment, Cognitive Decline, Neurodegenerative Disorders
Interventions
Sabroxy®, Placebo
Dietary Supplement · Other
Lead sponsor
SF Research Institute, Inc.
Network
Eligibility
40 Years to 80 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Sep 25, 2026, 4:26 PM EDT