- Conditions
- Vitamin D Deficiency, Vitamin D Insufficiency, Healthy Volunteers
- Interventions
- ALPCO 25(OH) Vitamin D CLIA Kit
- Device
- Lead sponsor
- American Laboratory Products Company
- Industry
- Eligibility
- 22 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026
- U.S. locations
- 1
- States / cities
- Salem, New Hampshire
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 come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 25–48
of 70
matching trials from the live ClinicalTrials.gov search.
- Conditions
- HIV Infections
- Interventions
- Vitamin D control dose, Vitamin D supplementation-
- Drug
- Lead sponsor
- University Hospitals Cleveland Medical Center
- Other
- Eligibility
- 8 Years to 25 Years
- Enrollment
- 190 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2016
- U.S. locations
- 2
- States / cities
- Atlanta, Georgia • Cleveland, Ohio
- Conditions
- Bone Health
- Interventions
- Vitamin D, DXA scan, Nutrition analysis
- Diagnostic Test · Other
- Lead sponsor
- PepsiCo Global R&D
- Industry
- Eligibility
- 14 Years to 19 Years
- Enrollment
- 120 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Bradenton, Florida
- Conditions
- Vitamin D, Prematurity
- Interventions
- Vitamin D3, vitamin D3 placebo
- Dietary Supplement
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 5 Minutes to 3 Months
- Enrollment
- 64 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2010
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Vitamin D Deficiency
- Interventions
- Not listed
- Lead sponsor
- The Cooper Health System
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 9,000 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Camden, New Jersey
- Conditions
- Vitamin D Status
- Interventions
- Tanning spray, UVB
- Other
- Lead sponsor
- Creighton University
- Other
- Eligibility
- 19 Years to 50 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2009
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Chronic Kidney Disease
- Interventions
- D6-25-hydroxyvitamin D3
- Drug
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 19 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2021
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Vitamin D Deficiency
- Interventions
- cholecalciferol, 25(OH)D
- Dietary Supplement
- Lead sponsor
- Creighton University
- Other
- Eligibility
- 20 Years to 60 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Cutaneous Lupus Erythematosus
- Interventions
- vitamin D
- Dietary Supplement
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 3 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Deficiency of Vitamin D3
- Interventions
- D3 2000 IU/day, D3 4000 IU/day, D3 50,000 IU weekly, vitamin D3 800 IU/day
- Dietary Supplement
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 86 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Hypovitaminosis D
- Interventions
- Standing Phototherapy Kiosk, D3 Oral supplement
- Device · Dietary Supplement
- Lead sponsor
- Madigan Army Medical Center
- Federal
- Eligibility
- 18 Years to 69 Years
- Enrollment
- 106 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Tacoma, Washington
- Conditions
- Healthy Subjects, Vitamin D Deficiency
- Interventions
- ergocalciferol
- Drug
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 99 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2012
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Chronic Kidney Disease, Hyperparathyroidism, Secondary
- Interventions
- Cinacalcet hydrochloride, Standard of Care
- Drug
- Lead sponsor
- Amgen
- Industry
- Eligibility
- 28 Days to 2189 Days
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2016
- U.S. locations
- 17
- States / cities
- Birmingham, Alabama • Little Rock, Arkansas • Los Angeles, California + 14 more
- Conditions
- Cognitive Decline, Cognitive Impairment
- Interventions
- Vitamin D
- Other
- Lead sponsor
- National Institute on Aging (NIA)
- NIH
- Eligibility
- 30 Years to 64 Years
- Enrollment
- 3,720 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2004 – 2013
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Pancreatic Cancer
- Interventions
- polymorphism analysis, immunologic technique, laboratory biomarker analysis, medical chart review
- Genetic · Other
- Lead sponsor
- Alliance for Clinical Trials in Oncology
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 265 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 1
- States / cities
- Glens Falls, New York
- Conditions
- Vitamin D Deficiency
- Interventions
- Dose 1, Dose 2
- Drug
- Lead sponsor
- University of Minnesota
- Other
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2017
- U.S. locations
- 1
- States / cities
- Saint Paul, Minnesota
- Conditions
- Bariatric Surgery, Osteoporosis, Fractures, Bone, Roux En-Y Gastric Bypass, Sleeve Gastrectomy, Menopause, Premenopause
- Interventions
- Roux en Y Gastric Bypass Pre-menopausal, Roux en Y Gastric Bypass Post-menopausal, Sleeve Gastrectomy Pre-menopausal, Sleeve Gastrectomy Post-menopausal
- Procedure
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 19 Years and older · Female only
- Enrollment
- 27 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- Birmingham, Alabama
- Conditions
- Hypovitaminosis D
- Interventions
- 25 Hydroxy- Vitamin D3 [25 (OH) D3], Placebo
- Drug
- Lead sponsor
- Charles Drew University of Medicine and Science
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 330 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2018
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Type 2 Diabetes
- Interventions
- vitamin D3, cholecalciferol, Inactive comparator
- Dietary Supplement
- Lead sponsor
- Augusta University
- Other
- Eligibility
- 19 Years to 60 Years
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010
- U.S. locations
- 1
- States / cities
- Augusta, Georgia
- Conditions
- Obesity
- Interventions
- Oral vitamin D3, Placebo equivalent
- Dietary Supplement
- Lead sponsor
- Winthrop University Hospital
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 57 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Mineola, New York
- Conditions
- Breast Cancer, Vitamin D Deficiency
- Interventions
- Not listed
- Lead sponsor
- University of Arizona
- Other
- Eligibility
- 18 Years to 75 Years · Female only
- Enrollment
- 240 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009
- U.S. locations
- 1
- States / cities
- Tucson, Arizona
- Conditions
- Renal Insufficiency, Chronic, Kidney Failure, Chronic
- Interventions
- Vitamin D
- Drug
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 21 Years to 70 Years
- Enrollment
- 5 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2020
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Adult Acute Megakaryoblastic Leukemia (M7), Adult Acute Monoblastic Leukemia (M5a), Adult Acute Monocytic Leukemia (M5b), Adult Acute Myeloblastic Leukemia With Maturation (M2), Adult Acute Myeloblastic Leukemia Without Maturation (M1), Adult Acute Myeloid Leukemia With 11q23 (MLL) Abnormalities, Adult Acute Myeloid Leukemia With Del(5q), Adult Acute Myeloid Leukemia With Inv(16)(p13;q22), Adult Acute Myeloid Leukemia With t(16;16)(p13;q22), Adult Acute Myeloid Leukemia With t(8;21)(q22;q22), Adult Acute Myelomonocytic Leukemia (M4), Adult Erythroleukemia (M6a), Adult Pure Erythroid Leukemia (M6b), Untreated Adult Acute Myeloid Leukemia
- Interventions
- cholecalciferol, pharmacological study, laboratory biomarker analysis
- Dietary Supplement · Other
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 4 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Systemic Lupus Erythematosus
- Interventions
- Vitamin D3 6000 IU, Vitamin D3 400 IU
- Drug
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Eligibility
- 5 Years to 20 Years
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2014
- U.S. locations
- 13
- States / cities
- Los Angeles, California • Palo Alto, California • San Francisco, California + 9 more