MedPath

Burosumab

Generic Name
Burosumab
Brand Names
Crysvita
Drug Type
Biotech
CAS Number
1610833-03-8
Unique Ingredient Identifier
G9WJT6RD29
Background

Burosumab (KRN23) is an entirely human monoclonal IgG1 antibody that binds excess fibroblast growth factor 23 (FGF23) and has been successfully tested in clinical trials in children with X-linked hypophosphatemic rickets .

The U.S. Food and Drug Administration approved Crysvita (burosumab) in April 2018. This is the first drug approved to treat adults and children ages 1 year and older with X-linked hypophosphatemia (XLH), which is a rare, inherited form of rickets. X-linked hypophosphatemia causes low circulating levels of phosphorus in the blood. It causes impaired bone growth and development in children and adolescents and issues with bone mineralization throughout a patient’s life .

XLH is a serious disease which affects about 3,000 children and 12,000 adults in the United States. Most children with XLH suffer from bowed or bent legs, short stature, bone pain and severe dental pain. Some adults with this condition suffer from persistent, unrelenting discomfort and complications, such as joint pain, impaired mobility, tooth abscesses and hearing loss .

Indication

This drug is indicated for the treatment of X-linked hypophosphatemia with radiological evidence of bone disease in children of 1 year of age and older and adolescents with growing skeletons .

Associated Conditions
Hypophosphatemia, X-Linked Hypophosphatemia

Burosumab for Fibroblast Growth Factor-23 Mediated Hypophosphatemia in Fibrous Dysplasia

Phase 2
Completed
Conditions
Fibrous Dysplasia Of Bone
Interventions
First Posted Date
2022-08-22
Last Posted Date
2025-01-22
Lead Sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
Target Recruit Count
12
Registration Number
NCT05509595
Locations
🇺🇸

National Institutes of Health Clinical Center, Bethesda, Maryland, United States

Study to Assess the Safety, Pharmacokinetics and Efficacy of KRN23 in Adult Chinese Patients With TIO

Phase 4
Completed
Conditions
Tumor-Induced Osteomalacia (TIO)
Interventions
First Posted Date
2022-05-03
Last Posted Date
2024-07-09
Lead Sponsor
Kyowa Kirin Co., Ltd.
Target Recruit Count
9
Registration Number
NCT05357573
Locations
🇨🇳

Peking Union Medical College Hospital, Beijing, China

🇨🇳

West China Hospital, Sichuan University, Chengdu, China

🇨🇳

Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, China

A Study to Describe the Lived Experience of XLH for Adolescents at End of Skeletal Growth

Completed
Conditions
X-Linked Hypophosphatemia
First Posted Date
2022-01-06
Last Posted Date
2024-06-20
Lead Sponsor
Kyowa Kirin Pharmaceutical Development Ltd
Target Recruit Count
25
Registration Number
NCT05181839
Locations
🇫🇷

APHP Paris - Assistance Publique Hopitaux de Paris, Paris, France

🇪🇸

Hospital General Universitario Santa Lucía, Cartagena, Murcia, Spain

🇪🇸

Hospital Universitario Virgen a de las Nieves, Granada, Spain

and more 11 locations

Study to Assess the Safety, Pharmacokinetics and Efficacy of KRN23 in Adult Chinese Patients With XLH

Phase 4
Completed
Conditions
X-linked Hypophosphatemia (XLH)
Interventions
First Posted Date
2021-04-12
Last Posted Date
2024-07-09
Lead Sponsor
Kyowa Kirin Co., Ltd.
Target Recruit Count
18
Registration Number
NCT04842019
Locations
🇨🇳

Peking Union Medical College Hospital, Beijing, China

🇨🇳

Nanfang Hospital, Guangzhou, China

🇨🇳

The First Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China

and more 2 locations

Study to Assess the Safety, Pharmacokinetics and Efficacy of KRN23 in Pediatric Chinese Patients With XLH

Phase 4
Completed
Conditions
X-linked Hypophosphatemia (XLH)
Interventions
First Posted Date
2021-04-12
Last Posted Date
2024-07-09
Lead Sponsor
Kyowa Kirin Co., Ltd.
Target Recruit Count
28
Registration Number
NCT04842032
Locations
🇨🇳

Shanghai 6th Hospital, Shanghai, China

🇨🇳

Guangzhou Women and Children Medical Center, Guangzhou, China

🇨🇳

Peking Union Medical College Hospital, Beijing, China

and more 2 locations

Anti-FGF23 (Burosumab) in Adult Patients With XLH

Phase 3
Completed
Conditions
X-linked Hypophosphatemia
Interventions
First Posted Date
2021-01-05
Last Posted Date
2023-05-03
Lead Sponsor
Wuerzburg University Hospital
Target Recruit Count
36
Registration Number
NCT04695860
Locations
🇩🇪

Clinical Trial Unit, Orthopedic Department, Wuerzburg University, Würzburg, Germany

Burosumab in Children and Adolescents With X-linked Hypophosphatemia

Phase 4
Conditions
X-linked Hypophosphatemia
Rare Diseases
Interventions
First Posted Date
2020-06-05
Last Posted Date
2020-06-05
Lead Sponsor
Bicetre Hospital
Target Recruit Count
57
Registration Number
NCT04419363
Locations
🇫🇷

Hospital Bicetre, Le Kremlin-Bicêtre, France

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

Phase 4
Completed
Conditions
Epidermal Nevus Syndrome
Interventions
First Posted Date
2020-03-25
Last Posted Date
2022-10-07
Lead Sponsor
University of Alabama at Birmingham
Target Recruit Count
1
Registration Number
NCT04320316
Locations
🇺🇸

University of Alabama at Birmingham, Birmingham, Alabama, United States

A Study of KRN23 in Adult and Pediatric Patients With X-linked Hypophosphatemic Rickets/Osteomalacia

Phase 3
Completed
Conditions
XLH
Interventions
First Posted Date
2020-03-13
Last Posted Date
2022-09-06
Lead Sponsor
Kyowa Kirin Co., Ltd.
Target Recruit Count
27
Registration Number
NCT04308096
Locations
🇯🇵

National University Corporation Osaka University, Suita, Osaka, Japan

🇯🇵

The University of Tokyo Hospital, Bunkyō-Ku, Tokyo, Japan

🇯🇵

Hokkaido University Hospital, Sapporo, Hokkaido, Japan

and more 7 locations

Study to Assess the Safety, Tolerability, Pharmacokinetics and Efficacy of Burosumab in Patients Less Than 1 Year of Age

Phase 1
Completed
Conditions
X-linked Hypophosphatemia (XLH)
Interventions
First Posted Date
2019-12-06
Last Posted Date
2024-11-07
Lead Sponsor
Kyowa Kirin Pharmaceutical Development Ltd
Target Recruit Count
16
Registration Number
NCT04188964
Locations
🇦🇹

Kepler Universitaetsklinikum GmbH, Linz, Austria

🇮🇹

Ospedale Pediatrico Bambino Gesù, Rome, Italy

🇫🇷

Centre de reference des maladies renales rares-Hospices Civils de Lyon-Hopital Femme Mere Enfant, Lyon, France

and more 6 locations
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