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Showing 121–144 of 371 matching trials from the live ClinicalTrials.gov search.
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Funk It Cycle Bites on PMS

NCT05900024
Conditions
Premenstrual Syndrome
Interventions
Funk It Cycle Bites
Other
Lead sponsor
Funk It Wellness
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Spinal Cord Injuries, Endothelial Dysfunction, Testosterone Deficiency
Interventions
Intra-arterial Infusion of Vasoactive Agents, Intra-arterial Vitamin C Infusion, Blood Sampling
Diagnostic Test
Lead sponsor
Craig Hospital
Other
Eligibility
18 Years to 89 Years · Male only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Englewood, Colorado
Conditions
Pancreatic Cancer
Interventions
Intravenous Vitamin C, Gemcitabine
Drug
Lead sponsor
Jeanne Drisko, MD, CNS, FACN
Other
Eligibility
21 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Kansas City, Kansas
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
Tetrahydrobiopterin (BH4), Antioxidant Cocktail
Drug · Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Augusta, Georgia
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Nebivolol and Endothelial Regulation of Fibrinolysis (NERF)

NCT01595516
Conditions
Prehypertension, Hypertension
Interventions
Nebivolol, Metoprolol, Placebo, Bradykinin, Saline, Vitamin C
Drug · Other
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
45 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Boulder, Colorado
Conditions
Keratoconus
Interventions
Antioxidants (Vitamins A,C,E) plus GSH, Placebo, Centrum, Dietary Sources
Other · Dietary Supplement · Combination Product
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 45 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Palm Beach Gardens, Florida
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Nuun Instant on Hydration Status in Active Men and Women

NCT04764565
Conditions
Hydration
Interventions
Nuun Instant, Water, Nuun Electrolyte
Dietary Supplement · Other
Lead sponsor
University of Memphis
Other
Eligibility
18 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Memphis, Tennessee
Conditions
Atrial Fibrillation
Interventions
Ascorbic Acid, Identical Placebo
Drug · Other
Lead sponsor
Regional Hospital of Scranton
Other
Eligibility
50 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Scranton, Pennsylvania
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Nitric Oxide Bioavailability and Early Life Stress (NO-Stress)

NCT02115724
Conditions
Cardiovascular Disease
Interventions
Antioxidant cocktail, Biopsy, Placebo, NMD; 0.4mg sub-lingual nitroglycerin spray
Dietary Supplement · Other · Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 40 Years
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
Augusta, Georgia
Conditions
Clonal Cytopenia of Undetermined Significance, High Grade B-Cell Lymphoma With MYC and BCL2 or BCL6 Rearrangements, Recurrent Diffuse Large B-Cell Lymphoma, Recurrent Hodgkin Lymphoma, Recurrent Lymphoma, Refractory Diffuse Large B-Cell Lymphoma, Refractory Lymphoma, Chronic Myelomonocytic Leukemia
Interventions
Ascorbic Acid, Carboplatin, Cisplatin, Cytarabine, Dexamethasone, Etoposide, Gemcitabine Hydrochloride, Ifosfamide, Laboratory Biomarker Analysis, Oxaliplatin, Placebo Administration, Questionnaire Administration, Rituximab, Decitabine, Biospecimen Collection, Core Biopsy, Bone Marrow Aspiration, Bone Marrow Biopsy, Echocardiography, Positron Emission Tomography, Magnetic Resonance Imaging, Central Venous Cannula Insertion, Portacath Placement, Computed Tomography, Decitabine and Cedazuridine
Dietary Supplement · Drug · Other + 2 more
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2033
U.S. locations
4
States / cities
Mankato, Minnesota • Rochester, Minnesota • Eau Claire, Wisconsin + 1 more
Completed Not applicable Interventional Accepts healthy volunteers

Assessment of a Pre-Workout Dietary Supplement

NCT02952014
Conditions
Dietary Modification
Interventions
C4 Extreme, C4 Extreme (without Advantra Z, Placebo
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 40 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
College Station, Texas
Conditions
Venous Thromboembolism, Metastatic Pancreatic Cancer, Locally Advanced Pancreatic Adenocarcinoma
Interventions
Kinisoquin™, Placebo
Drug
Lead sponsor
Quercis Pharma AG
Industry
Eligibility
18 Years and older
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
3
States / cities
Ventura, California • Miami Lakes, Florida • Boston, Massachusetts
Conditions
Stage I Multiple Myeloma, Stage II Multiple Myeloma, Stage III Multiple Myeloma, Refractory Plasma Cell Neoplasm
Interventions
arsenic trioxide, ascorbic acid, dexamethasone, thalidomide, anti-cytokine therapy, antiangiogenesis therapy, biological therapy, chemotherapy, drug resistance inhibition, growth factor antagonist therapy, non-specific immune-modulator therapy
Drug · Procedure
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Cleveland, Ohio
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Dietary Antioxidants on Cardiovascular Risk Factors

NCT00756405
Conditions
Obesity, Hyperlipidemia, Hypertension
Interventions
Antioxidant diet, Antioxidant supplement, Placebo
Behavioral · Dietary Supplement
Lead sponsor
Christopher Gardner
Other
Eligibility
18 Years and older
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Stanford, California
Conditions
Vitamin Deficiency
Interventions
EZPAK, Placebo
Dietary Supplement
Lead sponsor
Optimal Health Research
Other
Eligibility
26 Years to 75 Years
Enrollment
275 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Type 2 Diabetes Mellitus
Interventions
Vitamin D3 2000 international units daily, Vitamin C 500mg daily
Dietary Supplement
Lead sponsor
ProMedica Health System
Other
Eligibility
21 Years to 75 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
3
States / cities
Sylvania, Ohio • Toledo, Ohio
Suspended Not applicable Interventional Accepts healthy volunteers

The Effect of Nutritional Supplementation on Actinic Purpura: A Pilot Study

NCT06840574
Conditions
Skin Health, Skin Aging of Face and Hands, Healthy, Ecchymosis
Interventions
Cyruta Plus: A Whole-Food Based Vitamin C supplement containing organic buckwheat (aerial parts) juice powder, organic buckwheat flour, bovine adrenal Cytosol™ extract, oat flour, honey, ascorbic acid, Low Dose Vitamin C, High Dose Vitamin C
Dietary Supplement
Lead sponsor
Standard Process Inc.
Industry
Eligibility
55 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Kannapolis, North Carolina
Completed Phase 3 Interventional Accepts healthy volunteers

Vitamins C and Vitamin E and Cardiovascular Risk

NCT00362518
Conditions
Diabetes
Interventions
Study Arm A, Study Arm B, Study Arm C, Study Arm D
Dietary Supplement
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
Albuquerque, New Mexico
Conditions
Charcot-Marie-Tooth Disease, Type Ia
Interventions
Ascorbic acid (Vitamin C), placebo
Drug
Lead sponsor
Wayne State University
Other
Eligibility
13 Years to 70 Years
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
3
States / cities
Baltimore, Maryland • Detroit, Michigan • Rochester, New York
Recruiting Not applicable Interventional Accepts healthy volunteers

Developing a Nutritional Supplement to Increase Collagen Synthesis in People

NCT06138106
Conditions
Dietary Supplements, Connective Tissue, Exercise
Interventions
Natural Product Supplement, Placebo control
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 30 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Davis, California
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
Conditions
Healthy, Health Care Worker Patient Transmission, Aging
Interventions
PreserVision AREDS formulation soft gels or tablets, Multivitamin with 11mg of zinc
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 90 Years
Enrollment
2,700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
3
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
Completed Not applicable Interventional Accepts healthy volunteers

Acute Study on Muscle Soreness, Damage, and Performance

NCT04230226
Conditions
Soreness, Muscle, Performance Enhancing Product Use, Damage Muscle
Interventions
Pre-workout plus and protein recovery plus, Placebo
Dietary Supplement · Other
Lead sponsor
Pharmanex
Industry
Eligibility
25 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Completed Not applicable Interventional Accepts healthy volunteers Results available

Studying the Impact of Product Packaging in a Virtual Store Environment

NCT04381481
Conditions
Obesity, Childhood
Interventions
Experimental Drink: Nutrition claim on fruit drinks, Control Drink: No nutrition claim, Experimental snack: Text warning, Experimental snack: Graphic warning, Control snack: barcode label
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 99 Years
Enrollment
2,374 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Chapel Hill, North Carolina