Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
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 are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Jul 22, 2026, 8:14 PM EDT

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 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Rickets Clear all
Terminated Phase 3 Interventional Results available

Effect of Vitamin D Supplement on Inflammation Markers in High-Risk Cardiovascular Patients With Chronic Kidney Disease

NCT01012414
View directory record Official record
Conditions
Coronary Artery Disease, Chronic Kidney Disease, Hypovitaminosis D, Secondary Hyperparathyroidism
Interventions
paricalcitol, placebo
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 19, 2014 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Phase 1 Interventional

A Study of KRN23 in X-linked Hypophosphatemia

NCT00830674
View directory record Official record
Conditions
X-linked Hypophosphatemia
Interventions
Placebo, KRN23
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
4
States / cities
New Haven, Connecticut • Indianapolis, Indiana • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2024 · Synced Jul 22, 2026, 8:14 PM EDT
Active, not recruiting Phase 3 Interventional

The ENERGY 3 Study: Evaluation of Efficacy and Safety of INZ-701 in Children With ENPP1 Deficiency

NCT06046820
View directory record Official record
Conditions
Ectonucleotide Pyrophosphatase/Phosphodiesterase1 Deficiency, Autosomal Recessive Hypophosphatemic Rickets, Generalized Arterial Calcification of Infancy
Interventions
INZ-701, Control Arm (Conventional Therapy)
Drug
Lead sponsor
Inozyme Pharma
Industry
Eligibility
1 Year to 12 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
6
States / cities
Aurora, Colorado • Chicago, Illinois • Boston, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2025 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Phase 2 Interventional Results available

Study of KRN23 (Burosumab), a Recombinant Fully Human Monoclonal Antibody Against Fibroblast Growth Factor 23 (FGF23), in Pediatric Subjects With X-linked Hypophosphatemia (XLH)

NCT02163577
View directory record Official record
Conditions
X-linked Hypophosphatemia
Interventions
burosumab
Biological
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
5 Years to 12 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
4
States / cities
San Francisco, California • New Haven, Connecticut • Indianapolis, Indiana + 1 more
Source: ClinicalTrials.gov public record
Updated May 5, 2024 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

To Study the Nutri-Genomic Response of Vit-D Supplementation in African-Americans

NCT02802449
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
25 Hydroxy- Vitamin D3 [25 (OH) D3], Placebo
Drug
Lead sponsor
Charles Drew University of Medicine and Science
Other
Eligibility
18 Years to 70 Years
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 14, 2019 · Synced Jul 22, 2026, 8:14 PM EDT
Completed No phase listed Observational

Catheterization to Locate Mesenchymal Tumors in Patients With Tumor-Induced Osteomalacia or Oncogenic Osteomalacia

NCT00099762
View directory record Official record
Conditions
Osteomalacia, Neoplasms
Interventions
Not listed
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
8 Years to 100 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 22, 2026, 8:14 PM EDT
Not yet recruiting No phase listed Observational

Treatment Patterns, Biochemical Profiles and Clinical Outcomes in Adults With X-Linked Hypophosphatemia

NCT07607600
View directory record Official record
Conditions
X-linked Hypophosphatemia (XLH)
Interventions
No treatment given
Other
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
18 Years to 64 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
4
States / cities
New Haven, Connecticut • Indianapolis, Indiana • Columbus, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Phase 2 Interventional Results available

Extension Study of Protocol ENB-002-08 - Study of Asfotase Alfa in Infants and Young Children With Hypophosphatasia (HPP)

NCT01205152
View directory record Official record
Conditions
Hypophosphatasia
Interventions
asfotase alfa
Biological
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
24 Weeks to 42 Months
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
5
States / cities
Wilmington, Delaware • Springfield, Missouri • Omaha, Nebraska + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2019 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Phase 4 Interventional Results available

A Trial to Assess the Safety and Efficacy of KRN23 in Epidermal Nevus Syndrome (ENS)

NCT04320316
View directory record Official record
Conditions
Epidermal Nevus Syndrome
Interventions
Crysvita (burosumab-twza) Treatment
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
6 Months and older · Male only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 6, 2022 · Synced Jul 22, 2026, 8:14 PM 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 Jul 22, 2026, 8:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Vitamin D Dose and Genotype of the Binding Protein in Infants and Children

NCT01050387
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Vitamin D
Dietary Supplement
Lead sponsor
Yale University
Other
Eligibility
6 Months to 6 Years
Enrollment
193 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 4, 2014 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy Study of Asfotase Alfa in Adolescents and Adults With Hypophosphatasia (HPP)

NCT01163149
View directory record Official record
Conditions
Hypophosphatasia
Interventions
asfotase alfa
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
13 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
2
States / cities
St Louis, Missouri • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 12, 2019 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Phase 3 Interventional Results available

Cholecalciferol Supplementation for Sepsis in the ICU

NCT01896544
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
Cholecalciferol, Placebo
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 12, 2016 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Phase 2 Interventional

Phase II Randomized Study of the Effects of Growth Hormone on Children and Adolescents on Maintenance Dialysis

NCT00004340
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Vitamin D Supplementation in Breastfeeding Women

NCT01240265
View directory record Official record
Conditions
Vitamin D Deficiency, Rickets, Infant Nutrition Disorders
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
1 Month to 50 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 29, 2013 · Synced Jul 22, 2026, 8:14 PM EDT
Completed No phase listed Observational

Study of People With Generalized Arterial Calcification of Infancy (GACI) or Autosomal Recessive Hypophosphatemic Rickets Type 2 (ARHR2)

NCT03478839
View directory record Official record
Conditions
Generalized Arterial Calcification of Infancy, Autosomal Recessive Hypophosphatemic Rickets Type2
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
1 Year to 110 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Not applicable Interventional Results available

Cholecalciferol Versus Doxercalciferol in the Treatment of Secondary Hyperparathyroidism in Chronic Kidney Disease

NCT00285467
View directory record Official record
Conditions
Renal Osteodystrophy
Interventions
doxercalciferol, Cholecalciferol
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 82 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated May 1, 2016 · Synced Jul 22, 2026, 8:14 PM EDT
Terminated Phase 1 Interventional

Cinacalcet for Fibroblast Growth Factor 23 (FGF23)-Mediated Hypophosphatemia (Hypophosphatemic Rickets)

NCT01748812
View directory record Official record
Conditions
Osteomalacia
Interventions
Osteomalacia
Drug
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
18 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Jul 22, 2026, 8:14 PM EDT
Active, not recruiting No phase listed Observational

X-linked Hypophosphatemia Disease Monitoring Program

NCT03651505
View directory record Official record
Conditions
X-linked Hypophosphatemia, Hypophosphatemic Rickets
Interventions
No intervention
Other
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
Not listed
Enrollment
782 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2032
U.S. locations
24
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 18 more
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Comparing a Novel Phototherapy Kiosk to Oral Vitamin D Supplementation

NCT04556136
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
Standing Phototherapy Kiosk, D3 Oral supplement
Device · Dietary Supplement
Lead sponsor
Madigan Army Medical Center
Federal
Eligibility
18 Years to 69 Years
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Mar 12, 2024 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin D Supplementation in Warfighters

NCT02954549
View directory record Official record
Conditions
Vitamin D Deficiency Disease
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Madigan Army Medical Center
Federal
Eligibility
18 Years and older
Enrollment
131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated May 9, 2019 · Synced Jul 22, 2026, 8:14 PM EDT
Completed Not applicable Interventional Results available

The Effect of Hypovitaminosis D and Vitamin D Supplementation on Fracture Nonunion Rates

NCT01691833
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
Vitamin D, Placebo
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 13, 2022 · Synced Jul 22, 2026, 8:14 PM EDT
Recruiting Phase 1Phase 2 Interventional

A First-in-human Study of KK8123 in Adults With X-linked Hypophosphatemia

NCT06525636
View directory record Official record
Conditions
X-linked Hypophosphatemia
Interventions
KK8123
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
5
States / cities
San Francisco, California • New Haven, Connecticut • Indianapolis, Indiana + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Jul 22, 2026, 8:14 PM 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 Jul 22, 2026, 8:14 PM EDT