- Conditions
- Vitamin D Deficiency, Stem Cell Transplant Complications, Pediatric Cancer, Blood Disorder, Pediatric Acute Myeloid Leukemia, Pediatric Acute Lymphoid Leukemia, Myelodysplastic Syndromes, Sickle Cell Anemia in Children, Aplastic Anemia, Thalassemia in Children
- Interventions
- Vitamin D3, Standard Vitamin D3 Supplementation
- Dietary Supplement
- Lead sponsor
- Phoenix Children's Hospital
- Other
- Eligibility
- 1 Year to 25 Years
- Enrollment
- 49 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2019
- U.S. locations
- 1
- States / cities
- Phoenix, Arizona
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–20
of 20
matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Atopic Dermatitis, Vitamin D Deficiency
- Interventions
- Vitamin D
- Drug
- Lead sponsor
- Medical College of Wisconsin
- Other
- Eligibility
- 1 Year to 18 Years
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Milwaukee, Wisconsin
- Conditions
- Acute Respiratory Distress Syndrome, Vitamin D Deficiency, Critical Illness
- Interventions
- Vitamin D3, Placebo
- Drug
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,358 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2018
- U.S. locations
- 47
- States / cities
- Fresno, California • Los Angeles, California • Sacramento, California + 34 more
- Conditions
- Cognitive Decline
- Interventions
- 540,000 IU vitamin D3, Placebo
- Drug
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 95 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2020
- U.S. locations
- 7
- States / cities
- Aurora, Colorado • Boston, Massachusetts • New York, New York + 3 more
- Conditions
- Chronic Kidney Disease, Secondary Hyperparathyroidism, Chronic Renal Insufficiency, Chronic Renal Failure
- Interventions
- CTAP101 Capsules, CTAP101 Injection
- Drug
- Lead sponsor
- OPKO IP Holdings II, Inc.
- Industry
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 28 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009
- U.S. locations
- 12
- States / cities
- Peoria, Arizona • Evergreen Park, Illinois • Springfield, Massachusetts + 9 more
- 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
- Conditions
- Vitamin D Deficiency, Cystic Fibrosis
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2022
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Sickle Cell Disease
- Interventions
- Vitamin D, Placebo
- Drug · Other
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 7 Years to 21 Years
- Enrollment
- 46 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2013
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Healthy Volunteers
- Interventions
- Single High Dose Cholecalciferol, Daily Dose Cholecalciferol
- Dietary Supplement
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years to 40 Years · Female only
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota
- Conditions
- Diabetes Mellitus, Type 1, Hypoglycemia, Diabetes Mellitus, Diabetes, Autoimmune
- Interventions
- Cholecalciferol, Omega 3 fatty acid
- Drug
- Lead sponsor
- Rodolfo Alejandro
- Other
- Eligibility
- 6 Years to 65 Years
- Enrollment
- 27 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2024
- U.S. locations
- 1
- States / cities
- Miami, Florida
- Conditions
- Immunosenescence, Shingles
- Interventions
- Varicella Zoster Virus Vaccine (Zostavax)
- Biological
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 60 Years and older
- Enrollment
- 33 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2014
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- Conditions
- Osteoarthritis, Vitamin D Deficiency
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- University of Miami
- Other
- Eligibility
- 18 Years to 96 Years
- Enrollment
- 200 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- Miami, Florida
- Conditions
- Obesity
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 12 Years to 18 Years
- Enrollment
- 51 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- Children's Hospital Medical Center, Cincinnati
- Other
- Eligibility
- Not listed
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2017
- U.S. locations
- 1
- States / cities
- Cincinnati, Ohio
- 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
- Conditions
- Osteogenesis Imperfecta
- Interventions
- Setrusumab, Placebo
- Biological · Other
- Lead sponsor
- Ultragenyx Pharmaceutical Inc
- Industry
- Eligibility
- 5 Years to 25 Years
- Enrollment
- 183 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2027
- U.S. locations
- 23
- States / cities
- Little Rock, Arkansas • Los Angeles, California • Sacramento, California + 20 more
- Conditions
- Male Osteoporosis
- Interventions
- Teriparatide or human parathyroid hormone (PTH) 1-34, Cinacalcet, placebo tablet, Calcium citrate tablet, Vitamin D3
- Drug · Dietary Supplement
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 60 Years to 85 Years · Male only
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2025
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Gestational Diabetes
- Interventions
- 4000 IU vitamin D3
- Drug
- Lead sponsor
- University of Minnesota
- Other
- Eligibility
- 18 Years and older · Female only
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2020
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- Conditions
- Hematopoietic Stem Cell Transplant
- Interventions
- Cholecalciferol
- Drug
- Lead sponsor
- Children's Hospital Los Angeles
- Other
- Eligibility
- 0 Years to 25 Years
- Enrollment
- 33 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- 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