- Conditions
- Vitamin D 25 OH Deficiency
- Interventions
- Cholecalciferol, Cholecalciferol 5,000 IU
- Dietary Supplement
- Lead sponsor
- University of South Florida
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 56 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Tampa, Florida
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 71
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Burn, Growth, Malnutrition
- Interventions
- Calcium,Vitamin D, Calcium, VitaminD, Sugar Pill
- Dietary Supplement · Other
- Lead sponsor
- Kathy Prelack, PhD, RD
- Other
- Eligibility
- 4 Years to 18 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2005 – 2007
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Breast Cancer, Osteoporosis
- Interventions
- calcium carbonate, vitamin D, risedronate sodium, placebo
- Dietary Supplement · Drug · Other
- Lead sponsor
- Alliance for Clinical Trials in Oncology
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 216 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2008
- U.S. locations
- 198
- States / cities
- Mobile, Alabama • Scottsdale, Arizona • Aurora, Colorado + 124 more
- Conditions
- Breast Cancer, Osteoporosis
- Interventions
- calcium salts, cholecalciferol, zoledronic acid
- Dietary Supplement · Drug
- Lead sponsor
- Alliance for Clinical Trials in Oncology
- Other
- Eligibility
- 40 Years and older · Female only
- Enrollment
- 439 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2001 – 2009
- U.S. locations
- 107
- States / cities
- Arroyo Grande, California • La Jolla, California • Mountain View, California + 80 more
- Conditions
- Osteoporosis, Frailty
- Interventions
- DHA/EPA, Placebo capsule, Calcium with vitamin D
- Dietary Supplement
- Lead sponsor
- Donaghue Medical Research Foundation
- Other
- Eligibility
- 65 Years and older · Female only
- Enrollment
- 150 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2009
- U.S. locations
- 1
- States / cities
- Farmington, Connecticut
- Conditions
- Risperidone-induced Hyperprolactinemia
- Interventions
- Calcium and Vitamin D, Placebo
- Drug · Other
- Lead sponsor
- Chadi A. Calarge
- Other
- Eligibility
- 5 Years to 17 Years · Male only
- Enrollment
- 47 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2014
- U.S. locations
- 1
- States / cities
- Iowa City, Iowa
- Conditions
- Leukemia, Lymphoma, Myelodysplastic Syndromes, Osteoporosis, Ovarian Cancer
- Interventions
- calcium, cholecalciferol, zoledronic acid
- Dietary Supplement · Drug
- Lead sponsor
- University of Minnesota
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 61 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2012
- U.S. locations
- 2
- States / cities
- Minneapolis, Minnesota • Madison, Wisconsin
- Conditions
- Nutrition Status, Bone Health
- Interventions
- Calcium/Vitamin D, Placebo
- Dietary Supplement
- Lead sponsor
- United States Army Research Institute of Environmental Medicine
- Federal
- Eligibility
- 17 Years and older
- Enrollment
- 380 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2016
- U.S. locations
- 1
- States / cities
- Parris Island, South Carolina
- Conditions
- HIV Infection
- Interventions
- Alendronate, Placebo, Calcium carbonate/vitamin D
- Drug · Dietary Supplement
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Eligibility
- 11 Years to 24 Years
- Enrollment
- 52 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2017
- U.S. locations
- 7
- States / cities
- Los Angeles, California • Miami, Florida • Tampa, Florida + 4 more
- Conditions
- Spinal Cord Injury, Bone Loss, Osteoporosis
- Interventions
- Alendronate, Calcium, Vitamin D
- Drug · Dietary Supplement
- Lead sponsor
- Northwestern University
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 17 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2016
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Osteoporosis, Nutrition
- Interventions
- Full length Block 2014 Food Frequency Questionnaire, Revised Calcium, Vitamin D and Protein Screener
- Other
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 31 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2018
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Precursor Cell Lymphoblastic Leukemia-Lymphoma, Vitamin D Deficiency
- Interventions
- Vitamin D and Calcium Citrate
- Dietary Supplement
- Lead sponsor
- Children's Hospital Los Angeles
- Other
- Eligibility
- 10 Years to 29 Years
- Enrollment
- 76 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2016
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Osteoporosis
- Interventions
- alendronate with cholecalciferol, calcium carbonate with cholecalciferol, Falls prevention measures
- Drug · Behavioral
- Lead sponsor
- Hebrew SeniorLife
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 29 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2008
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Osteoporosis
- Interventions
- PTH(1-84), Ibandronate, Placebo injection, Placebo pills
- Drug · Other
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 55 Years to 75 Years · Female only
- Enrollment
- 44 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Mineral Absorption
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- Baylor College of Medicine
- Other
- Eligibility
- 4 Years to 8 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Glucose Intolerance, Type 2 Diabetes Mellitus, Metabolic Syndrome
- Interventions
- Vitamin D3 2,000 IU orally once daily, Calcium Carbonate 400 mg orally twice daily, Vitamin D3-Placebo, Calcium-Placebo
- Drug
- Lead sponsor
- Tufts Medical Center
- Other
- Eligibility
- 40 Years and older
- Enrollment
- 92 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2009
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Colorectal Adenomatous Polyps
- Interventions
- Rectal biopsy during colonoscopy, Rectal biopsy at randomization, Rectal biopsy at 1 year, Rectal biopsy prior to colonoscopy, Biopsies during colonoscopy
- Procedure
- Lead sponsor
- Emory University
- Other
- Eligibility
- 45 Years to 75 Years
- Enrollment
- 264 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2016
- U.S. locations
- 9
- States / cities
- Los Angeles, California • Denver, Colorado • Atlanta, Georgia + 6 more
- Conditions
- Vitamin D Deficiency, Osteoporosis, Osteopenia
- Interventions
- Calcium 500mg with 200 IU Vitamin D - 2 tablets daily, Blood levels of Vitamin D, Serum CTX, Mg, Ca++ and iPTH, Usual sun exposure documentation, Dietary intake of calcium, vitamin D, magnesium
- Drug · Procedure · Behavioral
- Lead sponsor
- McLennan County Medical Education and Research Foundation
- Other
- Eligibility
- 70 Years and older · Female only
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2007
- U.S. locations
- 1
- States / cities
- Waco, Texas
- Conditions
- Leukemia, Lymphoblastic, Acute, Osteoporosis
- Interventions
- Calcium carbonate (Tums), vitamin D, Placebo
- Drug · Other
- Lead sponsor
- St. Jude Children's Research Hospital
- Other
- Eligibility
- Not listed
- Enrollment
- 429 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2000 – 2011
- U.S. locations
- 3
- States / cities
- Memphis, Tennessee
- Conditions
- Osteopenia
- Interventions
- bisphosphonate therapy (risedronate), Vitamin D supplement, Calcium
- Drug · Dietary Supplement
- Lead sponsor
- State University of New York - Upstate Medical University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2008
- U.S. locations
- 1
- States / cities
- Syracuse, New York
- Conditions
- Hypocalcemia, Thyroid Diseases
- Interventions
- Tums, Calcitriol
- Dietary Supplement
- Lead sponsor
- Lahey Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 82 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2019
- U.S. locations
- 1
- States / cities
- Burlington, Massachusetts
- Conditions
- Bone Health, Nutrition Status
- Interventions
- Ca/Vit D, Placebo
- Dietary Supplement · Other
- Lead sponsor
- United States Army Research Institute of Environmental Medicine
- Federal
- Eligibility
- 17 Years to 42 Years
- Enrollment
- 342 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2018
- U.S. locations
- 2
- States / cities
- Fort Sill, Oklahoma • San Antonio, Texas
- Conditions
- Quality of Life, Body Mass Index
- Interventions
- MannaBears, AlgaeCal Calcium, Calcium carbonate, Vitamin D3
- Dietary Supplement
- Lead sponsor
- Integrative Health Technologies, Inc.
- Network
- Eligibility
- 5 Years to 19 Years
- Enrollment
- 200 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- San Antonio, Texas
- 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