Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 14, 2026, 10:22 PM EDT

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Showing 1–24 of 48 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Osteoarthritis, Knee, Muscle Weakness, Pain, Joint
Interventions
PB125, Placebo
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
50 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Fort Collins, Colorado
Conditions
Low Back Pain
Interventions
MSM 1000mg twice a day (6000 mgs), Placebo capsules twice a day
Drug · Other
Lead sponsor
Mike O'Callaghan Military Hospital
Federal
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Nellis Air Force Base, Nevada
Conditions
Dry Eye, Eye Fatigue
Interventions
Eye Empower, Placebo
Dietary Supplement
Lead sponsor
Bio Nature Health
Industry
Eligibility
45 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Las Vegas, Nevada
Conditions
Neuropathic Pain, Cancer Treatment
Interventions
Green Tea Leaf Extract Decaffeinated, Placebo Control
Dietary Supplement · Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Birmingham, Alabama
Conditions
Aging, Inflammation
Interventions
LLP-01, Placebo
Dietary Supplement · Other
Lead sponsor
LL Prosper Inc.
Industry
Eligibility
50 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
San Diego, California
Conditions
Schizophrenia, Gluten Sensitivity, Schizo Affective Disorder
Interventions
Gluten Flour in Protein Shake, Rice Flour in Protein Shake
Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 64 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Catonsville, Maryland
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Impact of Qualia Vitamin C+ on Blood Vitamin C Levels

NCT07285109
Conditions
Healthy, Suboptimal Vitamin C Levels
Interventions
Qualia Vitamin C+, Placebo
Dietary Supplement
Lead sponsor
Qualia Life Sciences
Industry
Eligibility
25 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Carlsbad, California
Completed Early Phase 1 Interventional Accepts healthy volunteers

Caffeine and Cerebrovascular Reactivity

NCT04730193
Conditions
Caffeine
Interventions
Caffeine, Placebo
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
21 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Conditions
Body Temperature Changes, Body Water Dehydration, Inflammation
Interventions
Betaine, Placebo
Dietary Supplement
Lead sponsor
Michael J. Ormsbee
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Tallahassee, Florida
Conditions
Sleep Disturbance
Interventions
Dietary Supplement: Speed Sleep, Placebo
Dietary Supplement
Lead sponsor
Bio Nature Health
Industry
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Completed Not applicable Interventional Accepts healthy volunteers

The Gut-brain Axis in Food Reward and Alcohol Consumption

NCT01902069
Conditions
Impulsivity, Alcohol Consumption
Interventions
Phospholean, Placebo
Dietary Supplement
Lead sponsor
Yale University
Other
Eligibility
21 Years to 45 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
New Haven, Connecticut
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

The Impact of Qualia Gluthathione+ on Blood Glutathione Levels

NCT07221955
Conditions
Effects of Qualia Glutathione+ on Blood Glutathione Levels, Glutathione
Interventions
Qualia Glutathione+ version 1, Qualia Glutathione+ version 2, Placebo
Dietary Supplement
Lead sponsor
Qualia Life Sciences
Industry
Eligibility
45 Years to 75 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Carlsbad, California
Not listed Not applicable Interventional Accepts healthy volunteers

Effectiveness of Qualia NAD+ Supplementation on Intracellular NAD Levels

NCT06505967
Conditions
NAD+ Levels in the Blood
Interventions
Qualia NAD+, Placebo
Dietary Supplement · Other
Lead sponsor
Qualia Life Sciences
Industry
Eligibility
40 Years to 65 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Carlsbad, California
Conditions
Autism
Interventions
Gluten and dry milk, Placebo
Dietary Supplement
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
3 Years to 12 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Houston, Texas
Conditions
Muscle Soreness
Interventions
Ginger Root, Placebo
Dietary Supplement
Lead sponsor
Old Dominion University
Other
Eligibility
18 Years to 65 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Norfolk, Virginia
Conditions
Chronic Pain
Interventions
BioPlete™ Advanced Formula, Placebo
Dietary Supplement
Lead sponsor
Ethos Research & Development
Industry
Eligibility
30 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
Tampa, Florida • West Palm Beach, Florida
Completed Not applicable Interventional Accepts healthy volunteers

Methylsulfonylmethane on Knee Laxity

NCT03747198
Conditions
Ligament Injury, Ligament; Laxity, Tendon Rupture, Tendon Injuries
Interventions
methylsulfonylmethane, Placebo
Dietary Supplement · Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Davis, California
Conditions
Cognitive Function, Memory, Cognitive Decline
Interventions
Dietary Supplement: Brain Blossom, Placebo
Dietary Supplement
Lead sponsor
Bio Nature Health
Industry
Eligibility
50 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Conditions
Bacterial Vaginosis, Yeast Infection
Interventions
Prebiotic + Probiotic Supplement, Active Placebo Supplement, Excipient Placebo Supplement
Dietary Supplement
Lead sponsor
Happy V
Industry
Eligibility
25 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Healthy Aging, Inflammaging, Metabolic Health, Quercetin, Coenzyme Q10
Interventions
Quercetin (dietary supplement), Coenzyme Q10, Rice Flour
Dietary Supplement
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
50 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Tampa, Florida
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Oral Probiotics on the Microbiome and Lipidome

NCT03605108
Conditions
Gut Microbiome, Skin Microbiome, Gut Lipidome, Skin Lipidome, Blood Lipidome
Interventions
Probiotic, Placebo
Dietary Supplement · Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Sacramento, California
Conditions
Sexual Function, Cognitive Functions, Testosterone
Interventions
Essential Elements T-Hero Platinum, Placebo
Dietary Supplement
Lead sponsor
Scale Media Inc
Industry
Eligibility
30 Years to 65 Years · Male only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Milk and/or Peanut Allergy
Interventions
Peanut powder and Oat flour, Peanut flour and Oat flour (placebo for peanut flour), Dry Milk Powder and Corn Starch (placebo for Milk powder), Baked milk and Rice milk (placebo for Baked milk)
Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years to 21 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Treatment of Fatigue After Resolution of COVID-19 Infection
Interventions
Oxaloacetate Medical Food/Dietary Supplement
Dietary Supplement
Lead sponsor
Terra Biological LLC
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boulder, Colorado