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Showing 1–24 of 287 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Calcium Metabolism Disorders Clear all
Recruiting No phase listed Observational

A Real-World Registry of Chronic Wounds and Ulcers

NCT02280733
View directory record Official record
Conditions
Diabetic Foot, Pressure Ulcer, Surgical Wound Dehiscence, Vasculitis, Skin Ulcer, Leg Ulcer, Pyoderma, Peripheral Arterial Disease, Lymphedema, Surgical Complication, Venous Leg Ulcers (VLUs), Calciphylaxis, Sickle Cell Ulcer, Pressure Ulcer (PU), Diabetic Foot Ulcers (DFUs), Pressure Injury, Arterial Ulcers, Soft Tissue Radionecrosis (STRN), Traumatic Wounds, Chronic Ulcer
Interventions
Usual care
Other
Lead sponsor
U.S. Wound Registry
Other
Eligibility
Not listed
Enrollment
300,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2030
U.S. locations
1
States / cities
The Woodlands, Texas
Source: ClinicalTrials.gov public record
Updated Jul 15, 2025 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Phase 3 Interventional Results available

Effectiveness of Paricalcitol in Reducing Parathyroid Hormone (PTH) Levels in X-linked Hypophosphatemic Rickets

NCT00417612
View directory record Official record
Conditions
Hypophosphatemia, Familial, Hyperparathyroidism
Interventions
Paricalcitol, Placebo
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
9 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 16, 2020 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Phase 1 Interventional

Effect of CTAP101 Capsules on Ca/iPTH in Advanced Breast/Prostate Cancer Patients Treated With Denosumab/Zoledronic Acid

NCT02274623
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Sep 26, 2019 · Synced Sep 11, 2026, 2:35 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

A Pilot Feasibility Study of Fibroblast Calcium and Glucoregulation in Health and Disease

NCT01917669
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Not listed
Lead sponsor
University of Kentucky
Other
Eligibility
40 Years to 55 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 24, 2016 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Phase 1 Interventional

Safety Study of Human Recombinant Tissue Non-Specific Alkaline Phosphatase Fusion Protein Asfotase Alfa in Adults With Hypophosphatasia (HPP)

NCT00739505
View directory record Official record
Conditions
Hypophosphatasia (HPP)
Interventions
Asfotase Alfa
Biological
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
2
States / cities
St Louis, Missouri • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 28, 2019 · Synced Sep 11, 2026, 2:35 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 Sep 11, 2026, 2:35 AM EDT
Withdrawn Phase 2Phase 3 Interventional

The Effect of Vitamin D on Urinary Calcium Excretion in Kidney Stone Formers With High Urinary Calcium

NCT00948740
View directory record Official record
Conditions
Vitamin D Deficiency, Nephrolithiasis
Interventions
vitamin D (ergocalciferol)
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 8, 2017 · Synced Sep 11, 2026, 2:35 AM EDT
Approved For Marketing No phase listed Expanded access

Expanded Access Program for Asfotase Alfa Treatment for Patients With Infantile- or Juvenile-onset Hypophosphatasia (HPP)

NCT02496689
View directory record Official record
Conditions
Hypophosphatasia
Interventions
asfotase alfa
Biological
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
Not listed
U.S. locations
2
States / cities
Lakewood, Colorado • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 28, 2019 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Phase 4 Interventional Results available

Vitamin D Repletion in Stone Formers With Hypercalciuria

NCT01295879
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Oct 22, 2012 · Synced Sep 11, 2026, 2:35 AM EDT
Terminated Phase 3 Interventional

A Phase 3 Clinical Trial of Intravenous Sodium Thiosulfate in Acute Calciphylaxis Patients

NCT03150420
View directory record Official record
Conditions
Calciphylaxis
Interventions
Sodium Thiosulfate, Placebo-Normal Saline
Drug
Lead sponsor
Hope Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
12
States / cities
Jacksonville, Florida • Chicago, Illinois • Maywood, Illinois + 9 more
Source: ClinicalTrials.gov public record
Updated May 18, 2020 · Synced Sep 11, 2026, 2:35 AM EDT
Completed No phase listed Observational

Feasibility of Orbital Atherectomy System in Calcified Bifurcation Lesion

NCT03058510
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Frequency domain optical coherence tomography
Procedure
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 7, 2017 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Asfotase Alfa in Juvenile Patients With Hypophosphatasia (HPP)

NCT00952484
View directory record Official record
Conditions
Hypophosphatasia (HPP)
Interventions
asfotase alfa
Biological
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
5 Years to 12 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 31, 2019 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Bioequivalence Study Of Pediatric Appropriate Formulation

NCT00758004
View directory record Official record
Conditions
Hypercholesterolemia
Interventions
Atorvastatin, Atorvastatin pediatric appropriate formulation
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 17, 2021 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Sodium Intake on Calcium Retention in Girls

NCT01564238
View directory record Official record
Conditions
Osteoporosis
Interventions
Low Na diet (1.3 g/d), High sodium diet (3.8 g/d)
Other
Lead sponsor
Purdue University
Other
Eligibility
11 Years to 15 Years · Female only
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2000
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 8, 2018 · Synced Sep 11, 2026, 2:35 AM EDT
Completed No phase listed Observational

Molecular Breast Imaging (MBI) in Patients With Suspected Ductal Carcinoma in Situ (DCIS)

NCT00890994
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
25 Years to 90 Years · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 21, 2017 · Synced Sep 11, 2026, 2:35 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study to Assess the Use of a Simple Lab Test to Screen for Rickets in Children

NCT00502866
View directory record Official record
Conditions
Rickets
Interventions
Not listed
Lead sponsor
Agency for Healthcare Research and Quality (AHRQ)
Federal
Eligibility
6 Months to 15 Months
Enrollment
246 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 7, 2014 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of Cinacalcet for the Treatment of Hypercalcemia in Patients With Primary Hyperparathyroidism Unable to Undergo Parathyroidectomy

NCT00975221
View directory record Official record
Conditions
Hyperparathyroidism, Primary, Hypercalcemia
Interventions
Cinacalcet, Placebo
Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
22
States / cities
Lake Forest, California • Lancaster, California • Los Gatos, California + 19 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2018 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Burosumab Versus Oral Phosphate and Active Vitamin D Treatment in Pediatric Patients With XLH

NCT02915705
View directory record Official record
Conditions
X-Linked Hypophosphatemia
Interventions
burosumab, Oral Phosphate Supplement, active vitamin D
Biological · Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
1 Year to 12 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
5
States / cities
Los Angeles, California • San Francisco, California • Indianapolis, Indiana + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2024 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Phase 3 Interventional

Open Label Trial Assessing Safety and Efficacy of Burosumab (KRN23), in a Patient With ENS and Hypophosphatemic Rickets

NCT03581591
View directory record Official record
Conditions
Hypophosphatemia, Hypophosphatemic Rickets, Pain, Chronic
Interventions
Burosumab
Biological
Lead sponsor
Redwood Dermatology Sciences
Other
Eligibility
Up to 18 Years · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Clinton, Utah
Source: ClinicalTrials.gov public record
Updated Jan 17, 2020 · Synced Sep 11, 2026, 2:35 AM EDT
Completed No phase listed Observational

Natural History of Patients With PH3 and a History of Stone Events

NCT04542590
View directory record Official record
Conditions
Primary Hyperoxaluria Type 3
Interventions
Not listed
Lead sponsor
Dicerna Pharmaceuticals, Inc., a Novo Nordisk company
Industry
Eligibility
2 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
2
States / cities
Boston, Massachusetts • New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 1, 2024 · Synced Sep 11, 2026, 2:35 AM EDT
Enrolling by invitation 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 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 11, 2026, 2:35 AM EDT
Completed No phase listed Observational

The Midwest Head and Neck Cancer Consortium Multi-Institutional Parathyroid Registry

NCT01409798
View directory record Official record
Conditions
Primary Hyperparathyroidism
Interventions
Not listed
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
6
States / cities
Iowa City, Iowa • Lawrence, Kansas • Minneapolis, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced Sep 11, 2026, 2:35 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Utility of a Urine Screening Tool for Vitamin D Deficiency in Infants and Toddlers

NCT01105689
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Not listed
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
6 Months to 3 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 8, 2011 · Synced Sep 11, 2026, 2:35 AM EDT
Completed Not applicable Interventional Results available

Calcium and Phosphorus Whole-Body Balance and Kinetics in Patients With Moderate Chronic Kidney Disease

NCT04019379
View directory record Official record
Conditions
Phosphorus and Calcium Disorders, Chronic Kidney Disease Mineral and Bone Disorder, Chronic Kidney Diseases
Interventions
High Phosphorus Diet, Low Phosphorus Diet
Other
Lead sponsor
University of Minnesota
Other
Eligibility
30 Years to 75 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 11, 2026, 2:35 AM EDT