- Conditions
- Vitamin D Deficiency
- Interventions
- Ergocalciferol, Calcitriol
- Dietary Supplement
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 42 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
Search Results
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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.
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Showing 1–24
of 92
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Opioid Use Disorder
- Interventions
- [11C]-PHNO, Calcitriol, Placebo Control, PET Scan
- Drug · Dietary Supplement · Other + 1 more
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 5 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- X-linked Hypophosphatemia, Hypophosphatemic Rickets, Hypophosphatemic Rickets, X-Linked Dominant
- Interventions
- Calcitriol
- Drug
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 3 Years to 70 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2026
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Neoplasms
- Interventions
- DN-101
- Drug
- Lead sponsor
- Novacea
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 2002
- U.S. locations
- 2
- States / cities
- Buffalo, New York • Portland, Oregon
- Conditions
- Secondary Hyperparathyroidism, Hypocalcemia
- Interventions
- Calcitriol
- Drug
- Lead sponsor
- Roxane Laboratories
- Industry
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 36 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2003
- U.S. locations
- 1
- States / cities
- Springfield, Missouri
- Conditions
- Colorectal Polyps, Colorectal Adenoma, Adenocarcinoma
- Interventions
- placebo and Calcitriol, Calcium and Calcitriol
- Drug
- Lead sponsor
- Rockefeller University
- Other
- Eligibility
- 48 Years to 72 Years
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2005 – 2009
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Chemotherapy-Induced Alopecia
- Interventions
- Compound 31543 Calcitriol 5 μg/mL, Compound 31543 Calcitriol 10 μg/mL, Compound 31543 Calcitriol 20 μg/mL, Compound 31543 Calcitriol 40 μg/mL, Compound 31543 Calcitriol 60 ug/mL, Compound 31543 Calcitriol 80 μg/mL
- Drug
- Lead sponsor
- BPGbio
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 28 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2017
- U.S. locations
- 2
- States / cities
- Los Angeles, California • New York, New York
- Conditions
- Myelodysplastic Syndromes
- Interventions
- Calcitriol, Dexamethasone
- Drug
- Lead sponsor
- University of Pittsburgh
- Other
- Eligibility
- Not listed
- Enrollment
- 32 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2001 – 2009
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Chronic Kidney Disease, Vitamin D Deficiency, Coronary Calcification, Disorders of Calcium and Bone Metabolism
- Interventions
- Calcitriol (Rocaltrol®), Paricalcitol
- Drug
- Lead sponsor
- Joslin Diabetes Center
- Other
- Eligibility
- 25 Years and older
- Enrollment
- 44 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2013
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Cancer
- Interventions
- 1,25 (OH)2 D3, Inspiratory isometric resistance training, Oral Placebo, Sham Inspiratory Isometric Resistance Training, Threshold Inspiratory Muscle Trainer (IMT)
- Drug · Other · Device
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 63 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota
- Conditions
- Prostate Cancer
- Interventions
- calcitriol, zoledronic acid
- Dietary Supplement · Drug
- Lead sponsor
- Memorial Sloan Kettering Cancer Center
- Other
- Eligibility
- 18 Years and older · Male only
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1999 – 2004
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Chronic Plaque Psoriasis
- Interventions
- Calcitriol 3mcg/g
- Drug
- Lead sponsor
- Galderma R&D
- Industry
- Eligibility
- 12 Years to 17 Years
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2009
- U.S. locations
- 5
- States / cities
- Little Rock, Arkansas • San Diego, California • Eagan, Minnesota + 2 more
- 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
- Plaque-type Psoriasis
- Interventions
- CD 2027
- Drug
- Lead sponsor
- Galderma R&D
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 26 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2009
- U.S. locations
- 3
- States / cities
- Hot Springs, Arizona • Austin, Texas • Bryan, Texas
- Conditions
- Adult Solid Neoplasm
- Interventions
- Calcitriol, Cisplatin, Gemcitabine Hydrochloride, Pharmacological Study
- Dietary Supplement · Drug · Other
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 14 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 2
- States / cities
- Buffalo, New York • Charlottesville, Virginia
- Conditions
- Kidney Failure, Chronic, Chronic Kidney Disease-Mineral and Bone Disorder
- Interventions
- Oral calcitriol with cinacalcet rescue, IV activated vitamin D
- Drug
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 90 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2027
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Prostate Cancer
- Interventions
- calcitriol, mitoxantrone hydrochloride, prednisone
- Dietary Supplement · Drug
- Lead sponsor
- OHSU Knight Cancer Institute
- Other
- Eligibility
- 18 Years to 100 Years · Male only
- Enrollment
- 19 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2004 – 2006
- U.S. locations
- 1
- States / cities
- Portland, Oregon
- Conditions
- Prostate Adenocarcinoma, Recurrent Prostate Carcinoma, Stage III Prostate Cancer, Stage IV Prostate Cancer
- Interventions
- Calcitriol, Ketoconazole, Laboratory Biomarker Analysis, Pharmacological Study, Therapeutic Hydrocortisone
- Dietary Supplement · Drug · Other
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 51 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2016
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Psoriasis, Plaque Psoriasis
- Interventions
- MK-0873 2% Cream, MK-0873 vehicle (placebo) Cream, Calcitriol Cream
- Drug
- Lead sponsor
- Merck Sharp & Dohme LLC
- Industry
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 2
- States / cities
- Fort Myers, Florida • Miramar, Florida
- Conditions
- Prostate Cancer
- Interventions
- calcitriol, dexamethasone
- Dietary Supplement · Drug
- Lead sponsor
- University of Pittsburgh
- Other
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1999 – 2002
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Prostate Cancer
- Interventions
- calcitriol, dexamethasone
- Dietary Supplement · Drug
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 15 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2006
- U.S. locations
- 2
- States / cities
- Buffalo, New York • Pittsburgh, Pennsylvania
- Conditions
- Plaque Psoriasis
- Interventions
- Vectical™ Ointment weekdays and Clobex® Spray weekends regimen, Clobex® Spray morning and Vectical™ Ointment evening regimen
- Drug
- Lead sponsor
- Galderma R&D
- Industry
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 138 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2010
- U.S. locations
- 5
- States / cities
- Los Angeles, California • San Diego, California • Evansville, Indiana + 2 more
- Conditions
- Secondary Hyperparathyroidism, Chronic Kidney Disease
- Interventions
- Paricalcitol, Calcitriol
- Drug
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 110 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2013
- U.S. locations
- 4
- States / cities
- Chicago, Illinois • Evanston, Illinois • Detroit, Michigan + 1 more
- Conditions
- Gaucher's Disease
- Interventions
- CEREDASE™
- Drug
- Lead sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
- NIH
- Eligibility
- Not listed
- Enrollment
- 100 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1993 – 2000
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland