Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 6, 2026, 8:03 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 37 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Completed Early Phase 1 Interventional

Burosumab for CSHS

NCT03993821
Conditions
Cutaneous Skeletal Hypophosphatemia Syndrome (CSHS), Epidermal Nevus Syndrome
Interventions
Burosumab
Drug
Lead sponsor
Laura Tosi
Other
Eligibility
Not listed
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Withdrawn Not applicable Interventional Accepts healthy volunteers

Calcimimetics in Hypophosphatemic Rickets

NCT00844740
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
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
Active, not recruiting No phase listed Observational

X-linked Hypophosphatemia Disease Monitoring Program

NCT03651505
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
Conditions
X-Linked Hypophosphatemia
Interventions
Burosumab
Biological
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
1 Year to 4 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
3
States / cities
New Haven, Connecticut • Indianapolis, Indiana • St Louis, Missouri
Conditions
X-linked Hypophosphatemia
Interventions
KRN23
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
5
States / cities
San Francisco, California • New Haven, Connecticut • Indianapolis, Indiana + 2 more
Conditions
Autosomal Dominant Hypophosphatemic Rickets
Interventions
Iron
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
25 Months and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Indianapolis, Indiana
Completed No phase listed Observational

Studying Phosphorus Metabolism

NCT00066183
Conditions
Phosphorus Metabolism
Interventions
Not listed
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Pancreatitis
Interventions
Sodium Phosphate, Potassium Phosphate
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Durham, North Carolina
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
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
Conditions
Chronic Kidney Disease
Interventions
grain (soy) protein diet, casein (meat) protein diet
Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Indianapolis, Indiana
Conditions
Hypophosphatemia, Kidney Transplantation
Interventions
Dipyridamole 75 MG
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Stanford, California
Conditions
Hypophosphatemia, Rickets, Hypercalciuria, XLH, HHRH
Interventions
phosphate
Drug
Lead sponsor
Yale University
Other
Eligibility
13 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
X-linked Hypophosphatemia
Interventions
KRN23
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
5
States / cities
San Francisco, California • New Haven, Connecticut • Indianapolis, Indiana + 2 more
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
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
Conditions
Iron Deficiency Anaemia, Iron Deficiency Anemia
Interventions
Iron isomaltoside/ferric derisomaltose, Ferric carboxymaltose
Drug
Lead sponsor
Pharmacosmos A/S
Industry
Eligibility
18 Years and older
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
16
States / cities
Los Angeles, California • Sacramento, California • Santa Ana, California + 9 more
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Early Check: Expanded Screening in Newborns

NCT03655223
Conditions
Spinal Muscular Atrophy, Fragile X Syndrome, Fragile X - Premutation, Duchenne Muscular Dystrophy, Hyperinsulinemic Hypoglycemia, Familial 1, Diabetes Mellitus, Adrenoleukodystrophy, Neonatal, Medium-chain Acyl-CoA Dehydrogenase Deficiency, Very Long Chain Acyl Coa Dehydrogenase Deficiency, Beta-ketothiolase Deficiency, Severe Combined Immunodeficiency Due to Adenosine Deaminase Deficiency, Primary Hyperoxaluria Type 1, Congenital Bile Acid Synthesis Defect Type 2, Pyridoxine-Dependent Epilepsy, Hereditary Fructose Intolerance, Hypophosphatasia, Hyperargininemia, Mucopolysaccharidosis Type 6, Argininosuccinic Aciduria, Citrullinemia, Type I, Wilson Disease, Maple Syrup Urine Disease, Type 1A, Maple Syrup Urine Disease, Type 1B, Biotinidase Deficiency, Neonatal Severe Primary Hyperparathyroidism, Intrinsic Factor Deficiency, Usher Syndrome Type 1D/F Digenic (Diagnosis), Cystic Fibrosis, Stickler Syndrome Type 2, Stickler Syndrome Type 1, Alport Syndrome, Autosomal Recessive, Alport Syndrome, X-Linked, Carbamoyl Phosphate Synthetase I Deficiency Disease, Carnitine Palmitoyl Transferase 1A Deficiency, Carnitine Palmitoyltransferase II Deficiency, Cystinosis, Chronic Granulomatous Disease, Cerebrotendinous Xanthomatoses, Maple Syrup Urine Disease, Type 2, Severe Combined Immunodeficiency Due to DCLRE1C Deficiency, Thyroid Dyshormonogenesis 6, Thyroid Dyshormonogenesis 5, Supravalvar Aortic Stenosis, Factor X Deficiency, Hemophilia A, Hemophilia B, Tyrosinemia, Type I, Fructose 1,6 Bisphosphatase Deficiency, Glycogen Storage Disease Type I, G6PD Deficiency, Glycogen Storage Disease II, Galactokinase Deficiency, Mucopolysaccharidosis Type IV A, Galactosemias, Guanidinoacetate Methyltransferase Deficiency, Agat Deficiency, Glutaryl-CoA Dehydrogenase Deficiency, Gtp Cyclohydrolase I Deficiency, Hyperinsulinism-Hyperammonemia Syndrome, Primary Hyperoxaluria Type 2, 3-Hydroxyacyl-CoA Dehydrogenase Deficiency, Long-chain 3-hydroxyacyl-CoA Dehydrogenase Deficiency, Mitochondrial Trifunctional Protein Deficiency, Sickle Cell Disease, Beta-Thalassemia, Holocarboxylase Synthetase Deficiency, 3-Hydroxy-3-Methylglutaric Aciduria, Primary Hyperoxaluria Type 3, Hermansky-Pudlak Syndrome 1, Hermansky-Pudlak Syndrome 4, Apparent Mineralocorticoid Excess, HSDB, CBAS1, Mucopolysaccharidosis Type 2, Mucopolysaccharidosis Type 1, Severe Combined Immunodeficiency, X Linked, Severe Combined Immunodeficiency Due to IL-7Ralpha Deficiency, Diabetes Mellitus, Permanent Neonatal, Isovaleric Acidemia, Severe Combined Immunodeficiency T-Cell Negative B-Cell Positive Due to Janus Kinase-3 Deficiency (Disorder), Jervell and Lange-Nielsen Syndrome 2, Hyperinsulinemic Hypoglycemia, Familial, 2, Diabetes Mellitus, Permanent Neonatal, With Neurologic Features, Jervell and Lange-Nielsen Syndrome 1, Lysosomal Acid Lipase Deficiency, CblF, 3-Methylcrotonyl CoA Carboxylase 1 Deficiency, 3-Methylcrotonyl CoA Carboxylase 2 Deficiency, Waardenburg Syndrome Type 2A, Methylmalonic Aciduria cblA Type, Methylmalonic Aciduria cblB Type, Methylmalonic Aciduria and Homocystinuria Type cblC, MAHCD, Methylmalonic Aciduria Due to Methylmalonyl-CoA Mutase Deficiency, Congenital Disorder of Glycosylation Type 1B, Mthfr Deficiency, Methylcobalamin Deficiency Type Cbl G (Disorder), Methylcobalamin Deficiency Type cblE, Usher Syndrome, Type 1B, N-acetylglutamate Synthase Deficiency, Ornithine Transcarbamylase Deficiency, Phenylketonurias, Waardenburg Syndrome Type 1, Congenital Hypothyroidism, Propionic Acidemia, Usher Syndrome, Type 1F, Pancreatic Agenesis 1, Hereditary Hypophosphatemic Rickets, Glycogen Storage Disease IXB, Glycogen Storage Disease IXC, MOWS, Epilepsy, Early-Onset, Vitamin B6-Dependent, Pyridoxal Phosphate-Responsive Seizures, Pituitary Hormone Deficiency, Combined, 1, Ptsd, Dihydropteridine Reductase Deficiency, Severe Combined Immunodeficiency Due to RAG1 Deficiency, Severe Combined Immunodeficiency Due to RAG2 Deficiency, Retinoblastoma, Multiple Endocrine Neoplasia Type 2B, Pseudohypoaldosteronism, Type I, Liddle Syndrome, Biotin-Responsive Basal Ganglia Disease, SCD, DIAR1, GSD1C, Acrodermatitis Enteropathica, Thyroid Dyshormonogenesis 1, Riboflavin Transporter Deficiency, Waardenburg Syndrome, Type 2E, SRD, Congenital Lipoid Adrenal Hyperplasia Due to STAR Deficiency, Barth Syndrome, Adrenocorticotropic Hormone Deficiency, Transcobalamin II Deficiency, Thyroid Dyshormonogenesis 3, Segawa Syndrome, Autosomal Recessive, Autosomal Recessive Nonsyndromic Hearing Loss, Thyroid Dyshormonogenesis 2A, Congenital Isolated Thyroid Stimulating Hormone Deficiency, Hypothyroidism Due to TSH Receptor Mutations, Usher Syndrome Type 1C, Usher Syndrome Type 1G (Diagnosis), Von Willebrand Disease, Type 3, Combined Immunodeficiency Due to ZAP70 Deficiency, Adenine Phosphoribosyltransferase Deficiency, Metachromatic Leukodystrophy, Canavan Disease, Menkes Disease, Carbonic Anhydrase VA Deficiency, Developmental and Epileptic Encephalopathy 2, 17 Alpha-Hydroxylase Deficiency, Smith-Lemli-Opitz Syndrome, Krabbe Disease, Glutathione Synthetase Deficiency, Mucopolysaccharidosis Type 7, Rett Syndrome, Molybdenum Cofactor Deficiency, Type A, Niemann-Pick Disease, Type C1, Niemann-Pick Disease Type C2, Ornithine Aminotransferase Deficiency, 3-Phosphoglycerate Dehydrogenase Deficiency, Leber Congenital Amaurosis 2, Dravet Syndrome, Mucopolysaccharidosis Type 3 A, Ornithine Translocase Deficiency, Carnitine-acylcarnitine Translocase Deficiency, Glucose Transporter Type 1 Deficiency Syndrome, Creatine Transporter Deficiency, Niemann-Pick Disease Type A, Pitt Hopkins Syndrome, Tuberous Sclerosis 1, Tuberous Sclerosis 2, Ataxia With Isolated Vitamin E Deficiency, Angelman Syndrome, Prader-Willi Syndrome, Homocystinuria, Permanent Neonatal Diabetes Mellitus, Transient Neonatal Diabetes Mellitus, Factor VII Deficiency, Glycogen Storage Disease Type IXA1, Glycogen Storage Disease, Type IXA2, Glycogen Storage Disease IC, Glycogen Storage Disease Type IB, Central Hypoventilation Syndrome With or Without Hirschsprung Disease
Interventions
Confirmatory Testing
Diagnostic Test
Lead sponsor
RTI International
Other
Eligibility
1 Day to 31 Days
Enrollment
30,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2026
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Completed Phase 4 Interventional Results available

Examining the Effect of Burosumab on Muscle Function

NCT04146935
Conditions
X-linked Hypophosphatemia
Interventions
Burosumab Injection [Crysvita]
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
X-Linked Hypophosphatemia
Interventions
KRN23
Biological
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
5
States / cities
San Francisco, California • New Haven, Connecticut • Indianapolis, Indiana + 2 more
Conditions
Hypophosphatemia, Renal Transplant
Interventions
Cinacalcet, Placebo
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
The Bronx, New York
Conditions
Iron Deficiency Anaemia, Iron Deficiency Anemia
Interventions
Iron isomaltoside/ferric derisomaltose, Ferric carboxymaltose
Drug
Lead sponsor
Pharmacosmos A/S
Industry
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
15
States / cities
Muscle Shoals, Alabama • Doral, Florida • Miami, Florida + 11 more
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