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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Calcium Metabolism Disorders Clear all
Terminated Phase 1 Interventional Accepts healthy volunteers

Bone Mineral Density, Body Composition and Growth Following Severe Burn Injury

NCT00285090
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 19, 2011 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Phase 3 Interventional

Calcium With or Without Estrogen and/or Risedronate in Preventing Osteoporosis in Patients With Prostate Cancer

NCT00043069
View directory record Official record
Conditions
Osteoporosis, Prostate Cancer
Interventions
calcium carbonate, cholecalciferol, Estrogen Antagonists, risedronate sodium, placebo
Dietary Supplement · Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older · Male only
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2010
U.S. locations
112
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Aurora, Illinois + 71 more
Source: ClinicalTrials.gov public record
Updated Dec 6, 2016 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Phase 2 Interventional

Vitamin D3 Supplementation for Heart Failure Patients

NCT01636570
View directory record Official record
Conditions
Heart Failure, Vitamin D Deficiency, Cardiomyopathy, Congestive Heart Failure
Interventions
Placebo Comparator: Sugar Pill, Vitamin D3 (cholecalciferol)
Drug
Lead sponsor
Heidi Moretti, MS, RD
Other
Eligibility
Not listed
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated Apr 25, 2017 · Synced Jul 23, 2026, 5:34 AM EDT
Not listed Phase 2Phase 3 Interventional

ACTHAR GEL for Sarcoidosis-Associated Calcium Dysregulation: An Open-label Pilot Study

NCT02155803
View directory record Official record
Conditions
Sarcoidosis, Hypercalcemia Due to Sarcoidosis
Interventions
ACTHAR Gel (adrenocorticotropic hormone)
Drug
Lead sponsor
Albany Medical College
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Jan 25, 2015 · Synced Jul 23, 2026, 5:34 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Exparel as a Nerve Block for Severe Hand Pain

NCT02374320
View directory record Official record
Conditions
CREST Syndrome, Peripheral Vascular Disease, Raynaud Disease, Scleroderma, Diffuse
Interventions
liposomal bupivacaine
Drug
Lead sponsor
Jose Soberon, MD
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated May 20, 2024 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Early Phase 1 Interventional

Gut Microbiome Mediated Effects of Inulin Supplementation on Mineral and Bone Metabolism in Hemodialysis Patients

NCT02718885
View directory record Official record
Conditions
Bone Diseases, Endocrine, Nutritional and Metabolic Diseases
Interventions
Inulin, Maltodextrin
Dietary Supplement
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
20 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Phase 2 Interventional Results available

Treatment of Hypoparathyroidism With Synthetic Human Parathyroid Hormone 1-34

NCT00001304
View directory record Official record
Conditions
Hypoparathyroidism
Interventions
Synthetic Human Parathyroid Hormone 1-34, Calcitriol & Calcium
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
17 Years to 69 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1991 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 14, 2015 · Synced Jul 23, 2026, 5:34 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

The BONES Project: Building Healthy Bones in Children

NCT00065247
View directory record Official record
Conditions
Osteoporosis
Interventions
Beat Osteoporosis: Nourish and Exercise Skeletons (BONES) Project
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
6 Years to 9 Years
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2004
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Phase 2 Interventional

A Study to Examine the Use of Zemplar to Increase Serum Calcium Levels in ICU Subjects

NCT00053378
View directory record Official record
Conditions
Hypocalcemia
Interventions
paricalcitol injection (Zemplar), Effects on calcium regulation, Administration of elemental Ca during hypocalcemic ICU pts.
Drug · Behavioral
Lead sponsor
Abbott
Industry
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
9
States / cities
Merced, California • Denver, Colorado • Hudson, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2006 · Synced Jul 23, 2026, 5:34 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Averting Complications of Proton Pump Inhibitor Therapy by Effervescent Calcium Magnesium Citrate

NCT03812380
View directory record Official record
Conditions
Osteoporosis, Hypomagnesemia
Interventions
EffCaMgCit, Placebo
Drug · Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
21 Years to 99 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 16, 2022 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Phase 3 Interventional

Zoledronate, Calcium, and Vitamin D in Preventing Bone Loss in Women Receiving Adjuvant Chemotherapy for Breast Cancer

NCT00022087
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 18, 2016 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Not applicable Interventional Results available

Near Infrared Autofluorescence (NIRAF) Detection for Identifying Parathyroid Glands During Parathyroidectomy

NCT05152927
View directory record Official record
Conditions
Parathyroid Diseases, Parathyroid Dysfunction, Parathyroid Neoplasms, Parathyroid Adenoma, Hypercalcemia, Neoplasms, Glandular and Epithelial, Endocrine Gland Neoplasms, Adenoma, Hyperparathyroidism, Hyperparathyroidism, Primary
Interventions
Parathyroid Eye (PTeye)
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioequivalency Study of Calcitriol Tablets Under Fasting Conditions

NCT00601328
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 22, 2018 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Phase 2 Interventional Results available

Effect of SNF472 on Progression of Cardiovascular Calcification in End-Stage-Renal-Disease (ESRD) Patients on Hemodialysis (HD)

NCT02966028
View directory record Official record
Conditions
Cardiovascular Diseases, Cardiovascular Abnormalities, Calcifications, Vascular, Endstage Renal Disease, ESRD, Coronary Artery Calcification
Interventions
SNF472, Placebo
Drug
Lead sponsor
Sanifit Therapeutics S. A.
Other
Eligibility
18 Years to 80 Years
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
46
States / cities
Bakersfield, California • Chula Vista, California • Escondido, California + 42 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2021 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Galactooligosaccharide (GOS) Supplementation and Calcium Absorption in Girls

NCT01263847
View directory record Official record
Conditions
Osteoporosis
Interventions
Galactooligosaccharide
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
10 Years to 12 Years · Female only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 8, 2018 · Synced Jul 23, 2026, 5:34 AM EDT
Not yet recruiting Phase 2 Interventional

Setmelanotide to Treat Obesity in a Patient With Pseudohypoparathyroidism Type 1a (PHP1a)

NCT07496463
View directory record Official record
Conditions
Pseudohypoparathyroidism Type 1a, Obesity
Interventions
Setmelanotide
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Not listed
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Does Omeprazole Decrease Intestinal Calcium Absorption?

NCT00582972
View directory record Official record
Conditions
Osteoporosis, Achlorhydria, GERD, Hip Fracture
Interventions
Omeprazole
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 14, 2013 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Fructooligosaccharide and Calcium Absorption in Adolescent Girls

NCT01005927
View directory record Official record
Conditions
Osteoporosis
Interventions
Fructooligosaccharide
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
10 Years to 12 Years · Female only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 6, 2018 · Synced Jul 23, 2026, 5:34 AM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Bone Development in Adolescent Girls: Effects of Calcium and Exercise

NCT00063011
View directory record Official record
Conditions
Osteoporosis
Interventions
Calcium rich diet, Weight bearing exercise
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
9 Years to 10 Years · Female only
Enrollment
107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1998
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Early Phase 1 Interventional

64 Cu-DOTA-alendronate PET Imaging in Localizing and Characterizing Breast Calcifications in Participants Before Undergoing Mastectomy

NCT03542695
View directory record Official record
Conditions
Breast Carcinoma, Calcification
Interventions
Computed Tomography, Copper Cu-64-DOTA-alendronate, Pharmacokinetic Study, Positron Emission Tomography
Procedure · Drug · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2024 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Phase 1Phase 2 Interventional

Congenital Adrenal Hyperplasia: Calcium Channels as Therapeutic Targets

NCT00000102
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia
Interventions
Nifedipine
Drug
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
14 Years to 35 Years
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 23, 2026, 5:34 AM EDT
Completed Phase 3 Interventional Results available

Evaluate Safety and Efficacy of ABT-335 in Combination With Atorvastatin in Subjects With Multiple Abnormal Lipid Levels in the Blood

NCT00300469
View directory record Official record
Conditions
Mixed Dyslipidemia, Coronary Heart Disease, Dyslipidemia
Interventions
ABT-335, Atorvastatin, Placebo
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years and older
Enrollment
613 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2006
U.S. locations
1
States / cities
North Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 2, 2009 · Synced Jul 23, 2026, 5:34 AM EDT
Active, not recruiting Phase 2 Interventional

Theophylline Treatment for Pseudohypoparathyroidism

NCT03029429
View directory record Official record
Conditions
Pseudohypoparathyroidism, Albright Hereditary Osteodystrophy
Interventions
Theophylline, Placebos
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
13 Years to 99 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Jul 23, 2026, 5:34 AM EDT
Withdrawn Phase 2Phase 3 Interventional

Primary Hyperparathyroidism (PHPT): Early Effect of Vitamin D

NCT01329666
View directory record Official record
Conditions
Primary Hyperparathyroidism, Hypercalcemia, Vitamin D Deficiency, Osteoporosis, Osteopenia
Interventions
Placebo, Vitamin D3
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
45 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 4, 2015 · Synced Jul 23, 2026, 5:34 AM EDT