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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin D and Sexual Health

NCT01450462
Conditions
Bacterial Vaginosis
Interventions
Vitamin D3 (cholecalciferol), Placebo
Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
118 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Hormone-Resistant Prostate Cancer, Metastatic Prostate Carcinoma, Stage IV Prostate Cancer
Interventions
Ascorbic Acid, Docetaxel, Laboratory Biomarker Analysis, Pharmacological Study, Placebo, Quality-of-Life Assessment
Dietary Supplement · Drug · Other
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
6
States / cities
Washington D.C., District of Columbia • Annapolis, Maryland • Baltimore, Maryland + 3 more
Conditions
Acute Respiratory Distress Syndrome, Critical Illness, Respiratory Failure, Sepsis
Interventions
Intravenous Acetaminophen (room temperature), Intravenous Vitamin C (refrigerated), 5% Dextrose (room temperature), 5% Dextrose refrigerated
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
488 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
41
States / cities
Birmingham, Alabama • Tucson, Arizona • Fresno, California + 34 more
Completed Not applicable Interventional Accepts healthy volunteers

Acute Cognitive Effects of Brain Edge

NCT07018674
Conditions
Cognitive Health, Mood
Interventions
Experimental, Placebo, Water
Dietary Supplement · Other
Lead sponsor
Nature's Sunshine Products, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Lehi, Utah
Conditions
Childhood Acute Promyelocytic Leukemia With PML-RARA, Myeloid Neoplasm
Interventions
Arsenic Trioxide, Cytarabine, Diagnostic Laboratory Biomarker Analysis, Idarubicin, Mercaptopurine, Methotrexate, Mitoxantrone Hydrochloride, Tretinoin
Drug · Other
Lead sponsor
Children's Oncology Group
Network
Eligibility
2 Years to 21 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2022
U.S. locations
112
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 87 more
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Clinical Trial of Tolcapone for Cognition in Schizophrenia

NCT00044083
Conditions
Schizophrenia
Interventions
Placebo, Tolcapone
Other · Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 50 Years
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Changes in Biomarkers Using Prostaglandin Inhibitors

NCT01769625
Conditions
Biomarker Change Linked to Breast Cancer
Interventions
placebo/celecoxib 400 mg and cholecalciferol 400 IU/cholecalciferol 2,000 IU
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
1
States / cities
Grand Forks, North Dakota
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Vitamin D on 25-hydroxyvitamin D Levels and Physical Function

NCT02293187
Conditions
Vitamin D Deficiency, Sarcopenia
Interventions
vitamin D3, Placebo
Dietary Supplement · Other
Lead sponsor
Tufts University
Other
Eligibility
60 Years to 85 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Atrial Fibrillation
Interventions
Edoxaban, Warfarin, Enoxaparin
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
2,199 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
28
States / cities
Phoenix, Arizona • Escondido, California • Newport Beach, California + 25 more
Conditions
Colorectal Cancer
Interventions
vitamin E, laboratory biomarker analysis
Dietary Supplement · Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
New Brunswick, New Jersey
Conditions
HIV Infected Population With Latent Tuberculosis
Interventions
rifapentene (RPT), darunavir/cobicistat (DRV/c), Isoniazid (INH), Pyridoxine
Drug · Dietary Supplement
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Breast Cancer, Drug/Agent Toxicity by Tissue/Organ, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
pyridoxine hydrochloride, urea/lactic acid-based topical cream, placebo
Dietary Supplement · Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2006
U.S. locations
231
States / cities
Scottsdale, Arizona • Aurora, Colorado • Boulder, Colorado + 148 more
Conditions
Melanoma
Interventions
Pembrolizumab, Quavonlimab, Vibostolimab, Lenvatinib, ATRA
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 120 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
13
States / cities
Los Angeles, California • Santa Monica, California • Aurora, Colorado + 9 more
Completed Not applicable Interventional Results available

CoA-Z in Pantothenate Kinase-associated Neurodegeneration (PKAN)

NCT04182763
Conditions
Pantothenate Kinase-Associated Neurodegeneration
Interventions
CoA-Z, Placebo
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
3 Months to 89 Years
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Portland, Oregon
Conditions
Cardiovascular Diseases, Cardiovascular Risk Factor, Vasoconstriction
Interventions
Control (Norepinephrine), Norepinephrine + Ascorbic Acid, Norepinephrine + L-NAME, Norepinephrine + L-NAME + Ascorbic Acid
Drug
Lead sponsor
The University of Texas at Arlington
Other
Eligibility
18 Years to 35 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Arlington, Texas
Conditions
Prostate Cancer
Interventions
vitamin E, sham intervention
Dietary Supplement · Procedure
Lead sponsor
University of Medicine and Dentistry of New Jersey
Other
Eligibility
18 Years and older · Male only
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
New Brunswick, New Jersey
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

Visual Surround Suppression and Perceptual Expectation Under Psilocybin

NCT04424225
Conditions
Perception Disturbance, Visual Suppression, Psychedelic Experiences
Interventions
Psilocybin, Niacin
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
25 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Prostate Adenocarcinoma, Stage I Prostate Cancer, Stage IIA Prostate Cancer, Stage IIB Prostate Cancer
Interventions
Cholecalciferol, Genistein, Laboratory Biomarker Analysis, Pharmacological Study, Placebo
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
11
States / cities
Birmingham, Alabama • Baltimore, Maryland • Burlington, Massachusetts + 6 more
Conditions
Advanced Hepatocellular Carcinoma, Advanced Melanoma, Locally Advanced Melanoma, Metastatic Melanoma, Stage III Hepatocellular Carcinoma AJCC v8, Stage IV Hepatocellular Carcinoma AJCC v8
Interventions
Biospecimen Collection, Cholecalciferol, Computed Tomography, Desloratadine, Immunotherapy, Infusion Procedure, Magnesium Sulfate, Magnetic Resonance Imaging, Propranolol
Procedure · Dietary Supplement · Drug + 1 more
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Prostate Cancer
Interventions
Vitamin D3, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
19 Years to 90 Years · Male only
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
2
States / cities
Charleston, South Carolina
Conditions
Carcinoma, Transitional Cell, Bladder Cancer, Bladder Neoplasm
Interventions
Pralatrexate Injection, Vitamin B12, Folic Acid
Drug · Dietary Supplement
Lead sponsor
Acrotech Biopharma Inc.
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
4
States / cities
Tucson, Arizona • Atlanta, Georgia • Rochester, New York + 1 more
Conditions
Pyruvate Kinase Deficiency, Glucose 6 Phosphate Dehydrogenase Deficiency
Interventions
Vitamin C
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Cervical Squamous Cell Carcinoma In Situ, Vulvar High Grade Squamous Intraepithelial Lesion
Interventions
Cyclophosphamide, Indomethacin, IRX-2, Laboratory Biomarker Analysis, Multivitamin, Omeprazole, Placebo, Therapeutic Conventional Surgery
Drug · Biological · Other + 2 more
Lead sponsor
University of Southern California
Other
Eligibility
25 Years and older · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
2
States / cities
Los Angeles, California • Oklahoma City, Oklahoma
Conditions
Advanced Lung Non-Small Cell Carcinoma, Recurrent Lung Non-Small Cell Carcinoma, Stage III Lung Cancer AJCC v8, Stage IIIA Lung Cancer AJCC v8, Stage IIIB Lung Cancer AJCC v8, Stage IIIC Lung Cancer AJCC v8, Stage IV Lung Cancer AJCC v8, Stage IVA Lung Cancer AJCC v8, Stage IVB Lung Cancer AJCC v8
Interventions
Cobalamin, Dexamethasone, Docetaxel, Folic Acid, Gemcitabine, Nogapendekin Alfa, Pembrolizumab, Pemetrexed, Ramucirumab
Dietary Supplement · Drug · Biological
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
Not listed
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
350
States / cities
Birmingham, Alabama • Goodyear, Arizona • Little Rock, Arkansas + 280 more