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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Supplements Clear all
Completed Not applicable Interventional Accepts healthy volunteers

A Comparative Effectiveness Study Evaluating the Effects of Thermogenic Supplements on Body Composition

NCT01423019
View directory record Official record
Conditions
Weight Loss
Interventions
Advantra Z, Advantra Z + Naringin + Hesperiden, Sugar pill
Dietary Supplement · Other
Lead sponsor
Integrative Health Technologies, Inc.
Network
Eligibility
21 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jan 22, 2012 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Natural Supplements for Unipolar Depression

NCT00226356
View directory record Official record
Conditions
Unipolar Depression
Interventions
Supplements of L-methionine, betaine and folate
Drug
Lead sponsor
Cambridge Health Alliance
Other
Eligibility
18 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 17, 2017 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effectiveness of an Internet-Based Curriculum in Increasing Health Care Providers' Knowledge of Herbs and Dietary Supplements

NCT00110539
View directory record Official record
Conditions
Healthy
Interventions
Complementary and alternative medicine education
Behavioral
Lead sponsor
National Library of Medicine (NLM)
NIH
Eligibility
Not listed
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated May 23, 2012 · Synced Jun 27, 2026, 6:33 AM EDT
Withdrawn Phase 2Phase 3 Interventional

Primary Hyperparathyroidism (PHPT): Early Effect of Vitamin D

NCT01329666
View directory record Official record
Conditions
Primary Hyperparathyroidism, Hypercalcemia, Vitamin D Deficiency, Osteoporosis, Osteopenia
Interventions
Placebo, Vitamin D3
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
45 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 4, 2015 · Synced Jun 27, 2026, 6:33 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Supplements for Controlling Resistance to Insulin

NCT00699413
View directory record Official record
Conditions
Obesity, Diabetes Mellitus, Type 2
Interventions
nutrition education plus active supplement, nutrition education plus inactive supplement
Drug
Lead sponsor
University of Southern California
Other
Eligibility
13 Years to 17 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 10, 2024 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Calcium on Tasigna Pharmacokinetics (PK) in Healthy Volunteers

NCT00732888
View directory record Official record
Conditions
Healthy
Interventions
Nilotinib Hydrochloride, calcium carbonate
Drug · Dietary Supplement
Lead sponsor
Jan Beumer
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 17, 2013 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Supplementation to Increase Serum Choline Levels

NCT02403804
View directory record Official record
Conditions
Healthy
Interventions
Phosphatidylcholine, Betaine (588 mg qam and 412 mg qpm), Betaine (1000 mg BID)
Dietary Supplement
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 1, 2020 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Prospective Study of Nutraceutical Supplements to Support Hair Growth in Females

NCT06376409
View directory record Official record
Conditions
Hair Thinning
Interventions
Nutrafol Women's Hair Growth Supplement, Nutrafol Women's Balance Hair Growth Supplement, Nutrafol Women's Vegan Hair Growth Supplement, Nutrafol Women's Postpartum Hair Growth Supplement
Dietary Supplement
Lead sponsor
Nutraceutical Wellness Inc.
Industry
Eligibility
18 Years to 70 Years · Female only
Enrollment
181 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jul 8, 2025 · Synced Jun 27, 2026, 6:33 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Measurement of Renal Function With Iohexol in Subjects Ingesting Carnitine

NCT01392313
View directory record Official record
Conditions
Carnitine Ingestion
Interventions
Carnitine, Placebo
Dietary Supplement
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jul 22, 2018 · Synced Jun 27, 2026, 6:33 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Omega 3 FA Supplements as Augmentation in the Treatment of Depression

NCT01803711
View directory record Official record
Conditions
Major Depression, Cancer, Diabetes, Cardiovascular Diseases
Interventions
Desvenlafaxine, Omega 3 Fatty acids, Placebo (for Omega 3 fatty acid supplement)
Drug · Dietary Supplement
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 26, 2017 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Nutraceutical Effects on Long-Term Memory

NCT01963767
View directory record Official record
Conditions
Aging
Interventions
NT-020, Placebo
Drug · Dietary Supplement
Lead sponsor
University of South Florida
Other
Eligibility
65 Years to 85 Years
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jul 3, 2014 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Not applicable Interventional

DNA Changes That Affect Vitamin D Metabolism in Patients With Colorectal Cancer Receiving Vitamin D Supplements

NCT00550563
View directory record Official record
Conditions
Colorectal Cancer
Interventions
cholecalciferol, polymerase chain reaction, polymorphism analysis, protein expression analysis, reverse transcriptase-polymerase chain reaction, western blotting, high performance liquid chromatography, laboratory biomarker analysis, pharmacological study, adjuvant therapy, immunoscintigraphy
Dietary Supplement · Genetic · Other + 1 more
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 120 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Apr 3, 2017 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Not applicable Interventional Results available

Lycopene or Omega-3 Fatty Acid Nutritional Supplements in Treating Patients With Stage I or Stage II Prostate Cancer

NCT00402285
View directory record Official record
Conditions
Prostate Cancer
Interventions
lycopene supplement, fish oil supplement, Placebo
Dietary Supplement · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
Male only
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 31, 2015 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Comparison of Changes in Bone Density With the Same Bone-health Plan, But With Different Bone-health Supplements

NCT01114685
View directory record Official record
Conditions
Osteopenia
Interventions
AlgaeCal-1, AlgaeCal-2
Dietary Supplement
Lead sponsor
Integrative Health Technologies, Inc.
Network
Eligibility
18 Years and older
Enrollment
354 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated May 2, 2010 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Comparison of Medical Nutritional Supplements

NCT01483976
View directory record Official record
Conditions
Elderly
Interventions
Oral medical nutritional supplement, Experimental oral medical nutritional supplement with AN777
Other
Lead sponsor
Abbott Nutrition
Industry
Eligibility
60 Years to 90 Years · Male only
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Jan 30, 2013 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Phase 1 Interventional

Effect of DHA Supplements on Macular Function in Patients With Stargardt Macular Dystrophy and Stargardt-like Macular Dystrophy

NCT00060749
View directory record Official record
Conditions
Macular Degeneration
Interventions
Docosahexaenoic Acid (DHA) Dietary Supplement
Drug
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
Not listed
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Not applicable Interventional

Blueberries for Improving Vascular Endothelial Function in Postmenopausal Women With Elevated Blood Pressure

NCT03370991
View directory record Official record
Conditions
Menopause, Elevated Blood Pressure, Hypertension, Endothelial Dysfunction
Interventions
Blueberry Powder, Placebo Powder
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
45 Years to 65 Years · Female only
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 13, 2022 · Synced Jun 27, 2026, 6:33 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Comparison of Meal Replacements Versus Protein Supplements and Utilizing the Protein Digestibility Corrected Amino Acid Score (PDCAAS) Method

NCT01399333
View directory record Official record
Conditions
Protein Deficiency
Interventions
Group 1 Meal Replacement, Group 2 Protein Supplement, Group 3
Dietary Supplement
Lead sponsor
Southeast Bariatrics, PA
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 25, 2011 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Supplementary Vitamins on Oxidant Gene Expression in the Lungs of Healthy Smokers

NCT00565214
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
Group 1, Group 2
Dietary Supplement
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 70 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 24, 2017 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Not applicable Interventional

Efficacy and Safety Study of Nutritional Supplements for Treatments of Dry Eye

NCT00883649
View directory record Official record
Conditions
Keratoconjunctivitis Sicca
Interventions
Hydroeye, Inactive Capsule
Dietary Supplement · Other
Lead sponsor
Virginia Eye Consultants
Other
Eligibility
40 Years and older · Female only
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
2
States / cities
Houston, Texas • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 19, 2012 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Xoçai Antioxidant Supplements on Atherosclerosis Risk Factors

NCT00666250
View directory record Official record
Conditions
Hypertension, Dyslipidemia, Hyperglycemia
Interventions
Xocai Activ drink
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 95 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 7, 2016 · Synced Jun 27, 2026, 6:33 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Multivitamin and Mineral Supplementation and Healthy Aging

NCT07642869
View directory record Official record
Conditions
Healthy Aging, Multivitamin and Mineral Supplementation
Interventions
MVM Core Blend, MVM Gold Blend, Placebo
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
40 Years to 60 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Jun 27, 2026, 6:33 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Galactagogue Use in Lactating Women With Low Milk Supply

NCT05398367
View directory record Official record
Conditions
Breast Milk Expression
Interventions
Galactagogue Supplement for Treatment of Low Milk Supply
Dietary Supplement
Lead sponsor
Winthrop University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rock Hill, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Jun 27, 2026, 6:33 AM EDT
Completed Phase 1 Interventional

Chemotherapy, Radiation Therapy, and Peripheral Stem Cell Transplantation in Treating Patients With Hematologic Cancer

NCT00005092
View directory record Official record
Conditions
Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes
Interventions
Cyclophosphamide, Psoralen, Thiotepa, Allogeneic bone marrow transplantation, In vitro-treated peripheral blood stem cell transplantation (PBSCT), Radiation Therapy (RT)
Drug · Procedure · Radiation
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Up to 49 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
3
States / cities
Chicago, Illinois • St Louis, Missouri • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 25, 2018 · Synced Jun 27, 2026, 6:33 AM EDT