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X-linked Hypophosphatemia clinical trials

View clinical trials related to X-linked Hypophosphatemia.

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NCT ID: NCT02526160 Completed - Clinical trials for X-linked Hypophosphatemia

Study of KRN23 in Adults With X-linked Hypophosphatemia (XLH)

Start date: October 22, 2015
Phase: Phase 3
Study type: Interventional

The primary efficacy objective of this study is to establish the effect of burosumab treatment compared with placebo on increasing serum phosphorus levels in adults with XLH.

NCT ID: NCT02312687 Completed - Clinical trials for X-Linked Hypophosphatemia

Long-Term Extension Study of KRN23 in Adult Subjects With X-Linked Hypophosphatemia (XLH)

Start date: January 30, 2015
Phase: Phase 2
Study type: Interventional

The primary objectives of this study are to: - Assess the long-term safety of KRN23 subcutaneous (SC) administration in adult subjects with XLH - Assess the proportion of subjects achieving serum phosphorus levels in the normal range (2.5-4.5 mg/dL) with long-term administration of KRN23 - Assess long-term pharmacodynamics (PD) of KRN23 as measured by changes in the following: serum intact parathyroid hormone (iPTH); serum and urinary phosphorus; ratio of renal tubular maximum phosphate reabsorption rate to glomerular filtration rate (TmP/GFR) and tubular reabsorption of phosphate (TRP); serum 1,25-dihydroxy vitamin D (1,25[OH]2D); serum fibroblast growth factor 23 (FGF23); bone biomarkers: serum alkaline phosphatase (ALP), bone-specific ALP (BALP), carboxy terminal crosslinked telopeptide of type I collagen (CTx), and procollagen type 1 N-terminal propeptide (P1NP) - Assess long-term immunogenicity of KRN23 as measured by presence of anti-KRN23 antibody (ADA)

NCT ID: NCT02163577 Completed - Clinical trials for X-linked Hypophosphatemia

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

Start date: July 2, 2014
Phase: Phase 2
Study type: Interventional

The objectives of the study are to: - Identify a dose and dosing regimen of burosumab, based on safety and pharmacodynamic (PD) effect, in pediatric XLH participants - Establish the safety profile of burosumab for the treatment of children with XLH including ectopic mineralization risk, cardiovascular effects, and immunogenicity profile - Characterize the pharmacokinetic (PK)/PD profile of the KRN23 doses tested in the monthly (Q4) and biweekly (Q2) dose regimens in pediatric XLH patients - Determine the PD effects of burosumab treatment on markers of bone health in pediatric XLH patients - Obtain a preliminary assessment of the clinical effects of burosumab on bone health and deformity, muscle strength, and motor function - Obtain a preliminary assessment of the effects of burosumab on participant-reported outcomes, including pain, disability, and quality of life in pediatric XLH patients - Evaluate the long-term safety and efficacy of burosumab

NCT ID: NCT01571596 Completed - Clinical trials for X-linked Hypophosphatemia

An Extension Study of KRN23 in Adults With X-Linked Hypophosphatemia

Start date: February 2012
Phase: Phase 1/Phase 2
Study type: Interventional

The primary purpose of this study is to assess the safety and efficacy of repeated subcutaneous (SC) injections of KRN23 in adult subjects with X-Linked Hypophosphatemia (XLH).

NCT ID: NCT01340482 Completed - Clinical trials for X-linked Hypophosphatemia

A Repeated Study of KRN23 in Adults With X-Linked Hypophosphatemia

Start date: April 2011
Phase: Phase 1/Phase 2
Study type: Interventional

The primary purpose of this study is to assess the safety and efficacy of repeated subcutaneous (SC) injections of KRN23 in adult subjects with X-Linked Hypophosphatemia (XLH). A Bone Substudy will evaluate the effects of single-blind KRN23 versus Placebo on bone mineral density and bone quality.

NCT ID: NCT00830674 Completed - Clinical trials for X-linked Hypophosphatemia

A Study of KRN23 in X-linked Hypophosphatemia

Start date: December 2008
Phase: Phase 1
Study type: Interventional

The primary objective of this study is to assess the safety and tolerability of KRN23 after a single intravenous (IV) and subcutaneous (SC) administration in XLH patients.