- Conditions
- Stage, Colon Cancer, Stage I-III Colon Cancer, Stage IV Colon Cancer With Resectable Liver Metastases
- Interventions
- Vitamin D3, Placebo
- Drug
- Lead sponsor
- Dana-Farber Cancer Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2027
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
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 49–72
of 959
matching trials from the live ClinicalTrials.gov search.
- Conditions
- CKD Stage 3, CKD Stage 4, Secondary Hyperparathyroidism, VDI
- Interventions
- CTAP101
- Drug
- Lead sponsor
- OPKO Health, Inc.
- Industry
- Eligibility
- 1 Month to 17 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2028
- U.S. locations
- 5
- States / cities
- Kansas City, Missouri • Columbus, Ohio • Philadelphia, Pennsylvania + 2 more
- Conditions
- Morbid Obesity, Vitamin D Deficiency
- Interventions
- vitamin D3 (Replesta), vitamin D
- Dietary Supplement
- Lead sponsor
- Texas Tech University
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 31 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Lubbock, Texas
- Conditions
- Asthma
- Interventions
- Cholecalciferol
- Dietary Supplement
- Lead sponsor
- University of Pittsburgh
- Other
- Eligibility
- 6 Years to 14 Years
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2015
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Hypocalcemia, Rickets
- Interventions
- 1,25-Dihydroxycholecalciferol
- Drug
- Lead sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- NIH
- Eligibility
- Not listed
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1976 – 2009
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Parkinson Disease, Accidental Falls
- Interventions
- Vitamin D3, calcium, Placebo
- Drug · Dietary Supplement · Other
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 50 Years to 99 Years
- Enrollment
- 101 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- Portland, Oregon
- Conditions
- Pancreatic Cancer, Pancreas Cancer, Cancer of the Pancreas
- Interventions
- 5-FU, Leucovorin, Liposomal Irinotecan, Paricalcitol, Serum and plasma blood samples, Tumor biopsy
- Drug · Procedure
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2022
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- Conditions
- Vitamin D Inadequacy, Vitamin D Deficiency
- Interventions
- Cholecalciferol (vitamin D3), Ergocalciferol (vitamin D2), Placebo
- Dietary Supplement
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 64 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2008
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Breast Cancer, Prostate Cancer, Bone Neoplasms, Hypocalcemia, Hyperparathyroidism, Secondary
- Interventions
- CTAP101 Capsules
- Drug
- Lead sponsor
- OPKO Health, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 33 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2017
- U.S. locations
- 6
- States / cities
- Long Beach, California • Miami, Florida • Evergreen Park, Illinois + 3 more
- Conditions
- Obesity, Vitamin D Deficiency, Hypertension
- Interventions
- Vitamin D (cholecalciferol)
- Dietary Supplement
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 26 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vitamin D Deficiency, Burns
- Interventions
- Ergocalciferol Capsules
- Drug
- Lead sponsor
- University of Texas Southwestern Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2025
- U.S. locations
- 1
- States / cities
- Dallas, Texas
- Conditions
- Vitamin D Deficiency, Fat Malabsorption
- Interventions
- Calcifediol, Calciferol
- Drug
- Lead sponsor
- Boston University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Diabetes
- Interventions
- Vitamin D, Omega-3 fatty acids (fish oil), Vitamin D placebo, Fish oil placebo
- Dietary Supplement · Drug
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 1,312 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2019
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- End Stage Renal Disease, Hemodialysis, Inflammatory Response, Cardiovascular Disease
- Interventions
- paricalcitol
- Drug
- Lead sponsor
- Renal Research Institute
- Other
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2004 – 2007
- U.S. locations
- 3
- States / cities
- New York, New York
- Conditions
- Severe Sepsis or Septic Shock
- Interventions
- Calcitriol, Placebo
- Drug
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 67 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Inflammatory Bowel Disease, Crohn's Disease, Ulcerative Colitis
- Interventions
- ergocalciferol, Cholecalciferol
- Dietary Supplement
- Lead sponsor
- Boston Children's Hospital
- Other
- Eligibility
- 5 Years to 21 Years
- Enrollment
- 134 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vitamin D Deficiency, Osteoporosis
- Interventions
- Vitamin D, placebo
- Drug
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 55 Years and older
- Enrollment
- 96 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2001 – 2004
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Nutrient Deficiency, Happiness, Digestive Health, Vulnerability to Disease, Mood Swings, Energy
- Interventions
- Alii Supplement
- Dietary Supplement
- Lead sponsor
- Texas Christian University
- Other
- Eligibility
- 18 Years to 25 Years · Female only
- Enrollment
- 16 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026
- U.S. locations
- 1
- States / cities
- Fort Worth, Texas
- Conditions
- Atopic Dermatitis, Vitamin D Deficiency, Asthma
- Interventions
- Not listed
- Lead sponsor
- Medical College of Wisconsin
- Other
- Eligibility
- 1 Year to 18 Years
- Enrollment
- 98 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Milwaukee, Wisconsin
- Conditions
- Hemophilia A, Hemophilia B, Vitamin D Deficiency
- Interventions
- Vitamin D and calcium
- Dietary Supplement
- Lead sponsor
- Virginia Commonwealth University
- Other
- Eligibility
- 2 Years to 21 Years · Male only
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2015
- U.S. locations
- 1
- States / cities
- Richmond, Virginia
- Conditions
- Type 1 Diabetes, Vitamin D Deficiency/Insufficiency
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- Children's Hospital Los Angeles
- Other
- Eligibility
- 13 Years to 21 Years
- Enrollment
- 26 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Weight Loss, Starvation
- Interventions
- Caloric Restriction, Post-Exercise Protein, Energy Balance, Post-Exercise Carbohydrate, Calcium and Vitamin D
- Other · Dietary Supplement
- Lead sponsor
- University of Nebraska Lincoln
- Other
- Eligibility
- 19 Years to 30 Years
- Enrollment
- 17 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Lincoln, Nebraska
- Conditions
- Osteoporosis
- Interventions
- placebo, ALX1-11
- Drug
- Lead sponsor
- Shire
- Industry
- Eligibility
- 45 Years and older · Female only
- Enrollment
- 2,532 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2000 – 2003
- U.S. locations
- 107
- States / cities
- Birmingham, Alabama • Huntsville, Alabama • Phoenix, Arizona + 95 more
- 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