- Conditions
- ADHD
- Interventions
- Magnetic Resonance Imaging (MRI), PHNO, calcitriol, Placebo oral capsule, high-resolution research tomography, Dextro Amphetamine
- Procedure · Drug · Dietary Supplement
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2023
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
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 92
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Lung Cancer, Precancerous Condition, Tobacco Use Disorder
- Interventions
- calcitriol, laboratory biomarker analysis, pharmacological study
- Drug · Other
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 40 Years to 79 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2018
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Arterial Dysfunction, Chronic Kidney Disease
- Interventions
- Cholecalciferol, Calcitriol
- Drug
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 128 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- Conditions
- Chronic Stable Plaque Psoriasis
- Interventions
- Clobex Spray, Vectical Ointment, Excimer Laser
- Drug · Procedure
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2014
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Secondary Hyperparathyroidism, Chronic Kidney Disease
- Interventions
- Zemplar, 42 Ca carbonate absorption via single tracer method, Calcijex
- Drug · Procedure
- Lead sponsor
- Abbott
- Industry
- Eligibility
- 20 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 2004
- 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
- Unspecified Adult Solid Tumor, Protocol Specific
- Interventions
- calcitriol, dexamethasone, gefitinib
- Dietary Supplement · Drug
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 53 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2007
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Hypocalcemia
- Interventions
- Teriparatide (Forteo), Calcium, Calcitriol
- Drug
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2010
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Osteoporosis, Cardiac Transplantation
- Interventions
- Alendronate, Calcitriol, Placebo Alendronate, Placebo Calcitriol
- Drug
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 20 Years to 70 Years
- Enrollment
- 149 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1997 – 2002
- U.S. locations
- 2
- States / cities
- New York, New York
- Conditions
- Healthy
- Interventions
- Calcitriol, Lanthanum carbonate + Calcitriol, Sevelamer carbonate + Calcitriol
- Drug
- Lead sponsor
- Shire
- Industry
- Eligibility
- 19 Years to 45 Years
- Enrollment
- 41 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009
- U.S. locations
- 1
- States / cities
- Cypress, California
- Conditions
- Renal Osteodystrophy, End Stage Renal Disease
- Interventions
- calcitriol, growth hormone
- Drug
- Lead sponsor
- National Center for Research Resources (NCRR)
- NIH
- Eligibility
- 1 Year to 18 Years
- Enrollment
- 109 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 1995
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Pancreatic Cancer
- Interventions
- placebo + gemcitabine + erlotinib, Placebo + gemcitabine, calcitriol + gemcitabine, calcitriol + gemcitabine + erlotinib
- Drug
- Lead sponsor
- Novacea
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 132 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 2007
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- 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
- 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
- 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
- Mouth Neoplasms
- Interventions
- Celecoxib, Calcitriol, Celecoxib plus Calcitriol
- Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 21 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2015
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- Conditions
- Thyroid Nodules, Hypocalcemia
- Interventions
- Calcitriol, Control Pill
- Dietary Supplement
- Lead sponsor
- David Shonka, MD
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 67 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2021
- U.S. locations
- 1
- States / cities
- Charlottesville, Virginia
- Conditions
- Prostate Cancer
- Interventions
- calcitriol, dexamethasone, clinical observation
- Dietary Supplement · Drug · Other
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 18 Years to 120 Years · Male only
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2010
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Familial Hypophosphatemic Rickets
- Interventions
- Cinacalcet
- Drug
- Lead sponsor
- Children's Mercy Hospital Kansas City
- Other
- Eligibility
- 5 Years to 21 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Kansas City, Missouri
- Conditions
- Male Infertility, Klinefelter's Syndrome, Y-chromosome Microdeletions
- Interventions
- 13-cis retinoic acid, Calcitriol
- Drug
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 21 Years to 60 Years · Male only
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2018
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Metastatic Melanoma
- Interventions
- Calcitriol, Temozolomide
- Dietary Supplement · Drug
- Lead sponsor
- Northwestern University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2012
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Hypertension
- Interventions
- Vitamin D, calcitriol, Placebo
- Drug
- Lead sponsor
- Atlanta VA Medical Center
- Federal
- Eligibility
- 18 Years to 80 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2011
- U.S. locations
- 1
- States / cities
- Decatur, Georgia
- Conditions
- End Stage Renal Disease, Kidney Transplantation, Bone Loss, Fractures, Vascular Calcifications
- Interventions
- Vitamin D3, Calcitriol, Placebo
- Drug
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 61 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2016
- U.S. locations
- 1
- States / cities
- New York, New York
- 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