- 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
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 433–456
of 530
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Age-related Macular Degeneration
- Interventions
- Omega-3 fatty acids (fish oil), Vitamin D3, Vitamin D3 placebo, Fish oil placebo
- Drug · Dietary Supplement
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 25,871 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2024
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vitamin D Deficiency
- Interventions
- High dose Vitamin D3, Low dose Vitamin D3
- Dietary Supplement
- Lead sponsor
- Texas Tech University Health Sciences Center
- Other
- Eligibility
- 65 Years to 89 Years
- Enrollment
- 14 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Lubbock, Texas
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Tufts University
- Other
- Eligibility
- 9 Years to 14 Years
- Enrollment
- 691 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Hypercholesterolemia
- Interventions
- Fish Oil, Cinnamon, Garlique,Turmeric, Plant Sterol, Red Yeast Rice, Rosuvastatin, Placebo
- Dietary Supplement · Drug · Other
- Lead sponsor
- The Cleveland Clinic
- Other
- Eligibility
- 40 Years to 75 Years
- Enrollment
- 203 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Cleveland, Ohio
- Conditions
- Hypertension, Kidney Diseases
- Interventions
- Vitamin D3, Omega-3 Fatty acids, Vitamin D3 placebo, Fish oil placebo
- Dietary Supplement · Drug
- Lead sponsor
- Albert Einstein College of Medicine
- Other
- Eligibility
- 50 Years to 99 Years
- Enrollment
- 2,232 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2022
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Colorectal Cancer, Polyps, Adenomas
- Interventions
- Calcium Carbonate, Vitamin D3, placebo
- Drug
- Lead sponsor
- Dartmouth-Hitchcock Medical Center
- Other
- Eligibility
- 45 Years to 75 Years
- Enrollment
- 2,813 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2004 – 2016
- U.S. locations
- 10
- States / cities
- Los Angeles, California • Denver, Colorado • Atlanta, Georgia + 7 more
- Conditions
- Refractory Bone or Joint Infections
- Interventions
- sodium fusidate
- Drug
- Lead sponsor
- Arrevus Inc.
- Industry
- Eligibility
- 12 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2019
- U.S. locations
- 19
- States / cities
- Fountain Valley, California • San Dimas, California • Sylmar, California + 16 more
- Conditions
- Metabolic Syndrome, Overweight, Obesity, Hypercholesterolemia
- Interventions
- UltraMealPlus 360 (Medical food), Low-glycemic-load diet
- Dietary Supplement · Other
- Lead sponsor
- MetaProteomics LLC
- Industry
- Eligibility
- 20 Years to 75 Years · Female only
- Enrollment
- 89 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2010
- U.S. locations
- 1
- States / cities
- Jacksonville, Florida
- Conditions
- Polycystic Ovary Syndrome, Vitamin D Deficiency
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Maimonides Medical Center
- Other
- Eligibility
- 16 Years to 48 Years · Female only
- Enrollment
- 79 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Brooklyn, New York
- Conditions
- Secondary Hyperparathyroidism-Chronic Kidney Disease
- Interventions
- Doxercalciferol (GZ427397), Calcitriol
- Drug
- Lead sponsor
- Sanofi
- Industry
- Eligibility
- 5 Years to 18 Years
- Enrollment
- 21 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2025
- U.S. locations
- 21
- States / cities
- Birmingham, Alabama • Los Angeles, California • Sacramento, California + 17 more
- Conditions
- Type 2 Diabetes
- Interventions
- cholecalciferol, microcrystalline cellulose
- Dietary Supplement · Other
- Lead sponsor
- Tufts University
- Other
- Eligibility
- 40 Years and older
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Cardiovascular Diseases, Vitamin D Deficiency
- Interventions
- Vitamin D3, Placebo
- Dietary Supplement
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 55 Years to 65 Years · Female only
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2010
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- 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
- Hyperlipidemia
- Interventions
- Plant sterol, Placebo
- Dietary Supplement
- Lead sponsor
- University of Manitoba
- Other
- Eligibility
- 30 Years to 75 Years
- Enrollment
- 71 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2012
- U.S. locations
- 1
- States / cities
- Beltsville, Maryland
- Conditions
- Type 1 Diabetes Mellitus
- Interventions
- Vitamin D
- Drug
- Lead sponsor
- Corewell Health East
- Other
- Eligibility
- 1 Year to 18 Years
- Enrollment
- 75 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Royal Oak, Michigan
- Conditions
- Gingivitis
- Interventions
- vitamin D3, Placebo
- Drug · Other
- Lead sponsor
- Boston University
- Other
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 35 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Cardiovascular Risk Factor
- Interventions
- Plant Sterol
- Drug
- Lead sponsor
- Stanford University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Stanford, California
- Conditions
- Chronic Kidney Disease (CKD), Secondary Hyperparathyroidism
- Interventions
- PLS240, Standard of Care
- Drug · Combination Product
- Lead sponsor
- Pathalys Pharma
- Industry
- Eligibility
- 1 Month to 17 Years
- Enrollment
- 56 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2032
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Kidney Failure, Secondary Hyperparathyroidism, Hyperphosphatemia, Hypercalcemia
- Interventions
- Calcitriol, Paricalcitol
- Drug
- Lead sponsor
- Winthrop University Hospital
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 16 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2015
- U.S. locations
- 1
- States / cities
- Mineola, New York
- Conditions
- Nephrolithiasis, Urolithiasis, Idiopathic Hypercalciuria, Vitamin D Deficiency, Disorder of Vitamin D
- Interventions
- Ergocalciferol
- Drug
- Lead sponsor
- New York Presbyterian Hospital
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Pre-Diabetic
- Interventions
- Calcitriol capsules, Oral Placebo
- Drug
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 20 Years to 45 Years
- Enrollment
- 17 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota
- Conditions
- Urticaria, Angioedema, Hives, Swelling
- Interventions
- High Dose Vitamin D3, Low Dose Vitamin D3
- Drug
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 19 Years and older
- Enrollment
- 42 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Osteopenia
- Interventions
- Calcium Carbonate, Vitamin D3, Risedronate, Bone-loading exercises
- Drug · Behavioral
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 19 Years and older · Female only
- Enrollment
- 276 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2019
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska