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ClinicalTrials.gov public records Last synced Oct 20, 2026, 5:48 PM EDT

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Showing 1–24 of 116 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: High Dose Supplement Clear all
Completed Not applicable Interventional Accepts healthy volunteers

A 12 Week, 3-Period Study to Evaluate the Effects of a Dietary Supplement on Lipid Metabolism

NCT02366156
View directory record Official record
Conditions
Hyperlipidemia
Interventions
Placebo, Low Dose Grape Blend, High Dose Grape Blend
Dietary Supplement
Lead sponsor
Access Business Group
Industry
Eligibility
18 Years to 70 Years
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 12, 2015 · Synced Oct 20, 2026, 5:48 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Kaempferol Absorption and Pharmacokinetics Evaluation

NCT07322406
View directory record Official record
Conditions
No Disease, Mitochondria Health, Longevity, Pharmacokinetics and Biological Absorption of Kaempferol in Healthy Adult, Healthy Volunteers
Interventions
Kaempferol
Dietary Supplement
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 70 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
3
States / cities
New York, New York • Chapel Hill, North Carolina • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 20, 2026, 5:48 PM EDT
Not listed Not applicable Interventional

A Prospective, Randomized, Open Label Trial of Two Doses of Oral Betaine

NCT03073343
View directory record Official record
Conditions
Non-Alcoholic Fatty Liver Disease, Non Insulin Dependent Diabetes, ALT
Interventions
Betaine (trimethyglycine)
Dietary Supplement
Lead sponsor
Southern California Institute for Research and Education
Other
Eligibility
18 Years to 75 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2025
U.S. locations
1
States / cities
Long Beach, California
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Oct 20, 2026, 5:48 PM EDT
Not yet recruiting Not applicable Interventional

2-HOBA Supplementation in People With Elevated Lipoprotein(a)

NCT07198009
View directory record Official record
Conditions
Hyperlipidemia, Elevated Lp(a)
Interventions
2-HOBA (Hobamine)
Dietary Supplement
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 69 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Oct 20, 2026, 5:48 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Effects of a Supplement Derived From Palm Oil on Cholesterol Levels in the Blood

NCT02634606
View directory record Official record
Conditions
Hypercholesterolemia
Interventions
Gamma Delta Tocotrienols - Low Dose, Gamma Delta Tocotrienols - High Dose, Sugar Pill
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
35 Years to 70 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2019 · Synced Oct 20, 2026, 5:48 PM EDT
Terminated Phase 2 Interventional

Vitamin D Supplementation for Adults With Neurofibromatosis Type 1 (NF1)

NCT01968590
View directory record Official record
Conditions
Neurofibromatosis Type 1 (NF1)
Interventions
Cholecalciferol
Drug
Lead sponsor
University of Utah
Other
Eligibility
25 Years to 40 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
2
States / cities
Cincinnati, Ohio • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 25, 2022 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Higher Protein Diet and Exercise for Optimal Weight Loss in Elderly Women

NCT00912210
View directory record Official record
Conditions
Bone and Body Composition, Obesity, Metabolic Syndrome, Physical Function, Quality of Life
Interventions
Whey protein isolate, Maltodextrin powder supplement
Dietary Supplement
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
60 Years to 80 Years · Female only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2009
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 3, 2009 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dose-Response Effects of Short-Term Ashwagandha on Anaerobic Exercise and Cognitive Function in Resistance-Trained Athletes

NCT07853274
View directory record Official record
Conditions
Resistance Exercise Performance, Cognitive Functions, Anaerobic Performance, Dietary Supplementation Athletic Performance
Interventions
Low-dose Ashwagandha Supplement, High-dose Ashwagandha Supplement, Maltodextrin (Placebo)
Dietary Supplement
Lead sponsor
Jacksonville State University
Other
Eligibility
18 Years to 40 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Jacksonville, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Feasibility Study of N-acetylcysteine for Self-injurious Behavior in Children With Autism Spectrum Disorder

NCT03008889
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
N-acetylcysteine, Placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
5 Years to 12 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 26, 2021 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Phase 2 Interventional Results available

Multiple Dose Safety and Efficacy Study Evaluating CNS 7056 Versus Midazolam in Patients Undergoing Colonoscopy

NCT01145222
View directory record Official record
Conditions
Sedation
Interventions
A. CNS 7056, B. CNS 7056, C. CNS 7056, D. Midazolam
Drug
Lead sponsor
Paion UK Ltd.
Industry
Eligibility
18 Years to 70 Years
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
9
States / cities
Sheffield, Alabama • Phoenix, Arizona • Anaheim, California + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2019 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Phase 3 Interventional Results available

Zoledronate in Preventing Osteoporosis and Bone Fractures in Patients With Locally Advanced Nonmetastatic Prostate Cancer Undergoing Radiation Therapy and Hormone Therapy

NCT00329797
View directory record Official record
Conditions
Osteoporosis, Prostate Cancer
Interventions
Calcium, Zoledronic acid, radiation therapy, LHRH, Vitamin D
Dietary Supplement · Radiation · Drug
Lead sponsor
Radiation Therapy Oncology Group
Network
Eligibility
18 Years and older · Male only
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2014
U.S. locations
80
States / cities
Chico, California • Los Angeles, California • Pomona, California + 66 more
Source: ClinicalTrials.gov public record
Updated Nov 29, 2017 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Phase 1 Interventional Results available

Effect of Prebiotics on the Gut Microbiome Profile and Beta Cell Function

NCT04114357
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Acetylated and Butyrylated High Amylose Maize Starch
Drug
Lead sponsor
Indiana University
Other
Eligibility
11 Years to 17 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Oct 20, 2026, 5:48 PM EDT
Recruiting Phase 2 Interventional

CASCADE 2002: PROTECT Study, "PRObiotics to TrEat Anal preCancer Trial

NCT06949800
View directory record Official record
Conditions
HSIL, High Grade Squamous Intraepithelial Lesion, HPV-Related Squamous Cell Carcinoma, Anal HSIL
Interventions
EXE-346 Probiotic, Placebo, Usual Care High Resolution Anoscopy (HRA)
Drug · Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Vitamin D Supplementation in Healthy Adolescents

NCT01126671
View directory record Official record
Conditions
Vitamin D Supplementation
Interventions
Supplemental Vitamin D
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
11 Years to 18 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 4, 2018 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of New Zealand Blackcurrant Supplementation on Exercise and Cognitive Performance in Resistance-Trained Adults

NCT07619976
View directory record Official record
Conditions
Resistance Exercise Performance, Cognitive Function, Anaerobic Performance, Dietary Supplementation Athletic Performance
Interventions
Low-dose Blackcurrant Supplement, High-dose Blackcurrant Supplement, Maltodextrin (Placebo)
Dietary Supplement
Lead sponsor
Jacksonville State University
Other
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Jacksonville, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutritional Outcomes After Vitamin A Supplementation in Subjects With SCD

NCT03632876
View directory record Official record
Conditions
Sickle Cell Anemia in Children, Vitamin A Deficiency in Children
Interventions
retinyl palmitate
Dietary Supplement
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
9 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Does Daily Supplementation of Lactobacillus Acidophilus MPH734, for One Week, Affect Acute (Immediate), Subacute (7 Days), and Post-treatment Discontinuation Lactose Metabolism, Gastrointestinal Symptoms, and Clinical Markers of Inflammation and Safety Compared to a Placebo

NCT04531033
View directory record Official record
Conditions
Lactose Intolerance
Interventions
Lactobacillus acidophilus MPH734, Placebo
Dietary Supplement
Lead sponsor
Lemuel W. Taylor IV
Other
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Belton, Texas
Source: ClinicalTrials.gov public record
Updated May 16, 2024 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effect of a Meal on Vitamin D Absorption

NCT01268176
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
cholecalciferol
Dietary Supplement
Lead sponsor
Tufts University
Other
Eligibility
50 Years to 69 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 13, 2013 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Phase 3 Interventional

High Versus Low Dose Supplemental External Radiation With Pd-103 for Prostate Cancer

NCT00494546
View directory record Official record
Conditions
Prostate Cancer
Interventions
Pd-103 with 20 vs 44 Gy supplemental beam XRT
Procedure
Lead sponsor
VA Puget Sound Health Care System
Federal
Eligibility
40 Years to 80 Years · Male only
Enrollment
568 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2007
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 29, 2007 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Glycomacropeptide and Women's Health

NCT05551091
View directory record Official record
Conditions
Obesity
Interventions
glycomacropeptide (GMP)
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Up to 90 Years · Female only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 3, 2022 · Synced Oct 20, 2026, 5:48 PM EDT
Recruiting Phase 3 Interventional

Efficacy and Safety of a New Formulation of Oral Cladribine Compared With Placebo in Participants With Generalized Myasthenia Gravis (MyClad)

NCT06463587
View directory record Official record
Conditions
Generalized Myasthenia Gravis
Interventions
Placebo, Cladribine Low Dose, Cladribine High Dose
Other · Drug
Lead sponsor
Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany
Industry
Eligibility
18 Years and older
Enrollment
264 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
21
States / cities
Phoenix, Arizona • Longmont, Colorado • Farmington, Connecticut + 18 more
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 20, 2026, 5:48 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Flavonoids in the Treatment of Endothelial Dysfunction in Children With Diabetes

NCT01307917
View directory record Official record
Conditions
Diabetic Nephropathy, Endothelial Dysfunction
Interventions
flavonoids
Dietary Supplement
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
12 Years to 21 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Amarillo, Texas
Source: ClinicalTrials.gov public record
Updated Dec 17, 2012 · Synced Oct 20, 2026, 5:48 PM EDT
Recruiting Phase 2 Interventional

Tart Cherry Juice as a Dietary Supplement for the Prevention of Paclitaxel-Induced Neuropathy

NCT06268665
View directory record Official record
Conditions
Breast Cancer, Breast Cancer Stage I, Breast Cancer Stage II, Breast Cancer Stage III, Breast Cancer Stage IV, Invasive Breast Cancer, Ovarian Cancer, Ovarian Cancer Stage 1, Ovarian Cancer Stage II, Ovarian Cancer Stage III, Ovarian Cancer Stage IV, Ovarian Cancer Stage IA, Ovarian Cancer Stage IB, Ovarian Cancer Stage IC, Ovarian Cancer Stage 2, Ovarian Cancer Stage 3, Ovarian Cancer Stage IIIb, Ovarian Cancer Stage IIIC, Breast Cancer Stage IIIA, Breast Cancer Invasive, Breast Cancer, Stage IA, Breast Cancer, Stage IB, Breast Cancer Stage IIA, Breast Cancer Stage IIB, Breast Cancer Stage IIIB, Breast Cancer Stage IIIc, Cancer, Breast, Tumors, Breast, Mammary Cancer, Mammary Carcinoma, Breast Carcinoma, Breast Neoplasm, Malignant Breast Neoplasm, Malignant Tumor of Breast, Cancer of Ovary, Ovary Cancer, Ovary Neoplasm
Interventions
Tart Cherry Juice
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Oct 20, 2026, 5:48 PM EDT
Completed Phase 4 Interventional Results available

Dipeptidyl Peptidase-4 Inhibitor (Sitagliptin) Therapy in the Inpatients With Type 2 Diabetes

NCT01378117
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Hospitalization, Hyperglycemia
Interventions
Sitagliptin, glargine, lispro
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 80 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 7, 2018 · Synced Oct 20, 2026, 5:48 PM EDT