2022
OR13-1 Long-Term Burosumab Therapy Provides Sustained Benefit in Patients with Tumor-Induced Osteomalacia: End of Study Findings From the Pivotal Phase 2 Study
Carpenter T, Cimms T, Hetzer J, Insogna K, Kumar R, Merritt J, Miller P, Peacock M, Rauch F, Stanciu I, Weber T, De Beur S. OR13-1 Long-Term Burosumab Therapy Provides Sustained Benefit in Patients with Tumor-Induced Osteomalacia: End of Study Findings From the Pivotal Phase 2 Study. Journal Of The Endocrine Society 2022, 6: a191-a191. PMCID: PMC9624705, DOI: 10.1210/jendso/bvac150.394.Peer-Reviewed Original ResearchTumor-induced osteomalaciaWeek 240Week 144Week 24Serum phosphorusBurosumab therapyWeek 48Bone biomarkersSafety profileNormal rangeExcess fibroblast growth factor 23SF-36 bodily pain scoresTreatment of TIOPivotal phase 2 studySF-36 physical healthSF-36 vitality scoreFibroblast growth factor 23Surface/bone surfaceBodily pain scoresMean serum phosphorusObserved safety profileRadionucleotide bone scansRare paraneoplastic syndromeBrief Pain InventoryOsteoid surface/bone surface
2021
Burosumab treatment in adults with X-linked hypophosphataemia: 96-week patient-reported outcomes and ambulatory function from a randomised phase 3 trial and open-label extension
Briot K, Portale AA, Brandi ML, Carpenter TO, Cheong HI, Cohen-Solal M, Crowley RK, Eastell R, Imanishi Y, Ing S, Insogna K, Ito N, de Beur S, Javaid MK, Kamenicky P, Keen R, Kubota T, Lachmann RH, Perwad F, Pitukcheewanont P, Ralston SH, Takeuchi Y, Tanaka H, Weber TJ, Yoo HW, Nixon A, Nixon M, Sun W, Williams A, Imel EA. Burosumab treatment in adults with X-linked hypophosphataemia: 96-week patient-reported outcomes and ambulatory function from a randomised phase 3 trial and open-label extension. RMD Open 2021, 7: e001714. PMID: 34548383, PMCID: PMC8458321, DOI: 10.1136/rmdopen-2021-001714.Peer-Reviewed Original ResearchConceptsBrief Pain Inventory-Short FormPatient-reported outcomesBrief Fatigue InventoryBPI-SF scoresAmbulatory functionWeek 96Burosumab treatmentMcMaster Universities Osteoarthritis IndexOpen-label extensionDouble-blinded trialPhase 3 trialMin walk testSignificant improvementWOMAC stiffnessOsteoarthritis IndexWeek 48Worse fatigueWeek 24Walk testFatigue InventoryWestern OntarioBFI scoresSubstantial burdenWOMACBurosumab
2020
OR29-01 Long-Term Safety in Adults with X-Linked Hypophosphatemia (XLH) Treated with Burosumab, a Fully Human Monoclonal Antibody Against FGF23: Final Results of a Phase 3 Trial
Perwad F, Portale A, Carpenter T, Briot K, Imel E, Kamenicky P, Weber T, Pitukcheewanont P, Cheong H, De Beur S, Imanishi Y, Ito N, Lachmann R, Tanaka H, Zhang L, Skrinar A, Rees L, Insogna K. OR29-01 Long-Term Safety in Adults with X-Linked Hypophosphatemia (XLH) Treated with Burosumab, a Fully Human Monoclonal Antibody Against FGF23: Final Results of a Phase 3 Trial. Journal Of The Endocrine Society 2020, 4: or29-01. PMCID: PMC7209551, DOI: 10.1210/jendso/bvaa046.147.Peer-Reviewed Original ResearchYears of ageSerum phosphorusWeek 96Dose reductionLong-term safety resultsTreatment-emergent adverse eventsMonoclonal antibodiesBaseline serum phosphorusHuman IgG1 monoclonal antibodyMean iPTH levelPhase 3 trialLong-term safetyHuman monoclonal antibodyConditional marketing authorizationMonths of ageIgG1 monoclonal antibodyIPTH levelsPlacebo groupAdverse eventsTreatment withdrawalWeek 24Radiographic evidenceMulticenter studyBurosumab treatmentMild hyperphosphatemia
2019
Continued Beneficial Effects of Burosumab in Adults with X-Linked Hypophosphatemia: Results from a 24-Week Treatment Continuation Period After a 24-Week Double-Blind Placebo-Controlled Period
Portale AA, Carpenter TO, Brandi ML, Briot K, Cheong HI, Cohen-Solal M, Crowley R, Jan De Beur S, Eastell R, Imanishi Y, Imel EA, Ing S, Ito N, Javaid M, Kamenicky P, Keen R, Kubota T, Lachmann R, Perwad F, Pitukcheewanont P, Ralston SH, Takeuchi Y, Tanaka H, Weber TJ, Yoo HW, Zhang L, Theodore-Oklota C, Mealiffe M, San Martin J, Insogna K. Continued Beneficial Effects of Burosumab in Adults with X-Linked Hypophosphatemia: Results from a 24-Week Treatment Continuation Period After a 24-Week Double-Blind Placebo-Controlled Period. Calcified Tissue International 2019, 105: 271-284. PMID: 31165191, DOI: 10.1007/s00223-019-00568-3.Peer-Reviewed Original ResearchConceptsWeek 48Adverse eventsWeek 24Sustained improvementTreatment-related serious adverse eventsOpen-label treatment periodSafety of burosumabDouble-blind placeboFatal adverse eventsSerious adverse eventsSerum phosphorus levelsPatient-reported outcomesSerum phosphorus concentrationRenal phosphate wastingHuman monoclonal antibodyContinued beneficial effectsHealing of fracturesRare genetic disorderMusculoskeletal morbidityPhysical functionContinuation periodMusculoskeletal impairmentsPhosphate wastingTreatment periodBurosumab
2018
A Randomized, Double‐Blind, Placebo‐Controlled, Phase 3 Trial Evaluating the Efficacy of Burosumab, an Anti‐FGF23 Antibody, in Adults With X‐Linked Hypophosphatemia: Week 24 Primary Analysis
Insogna KL, Briot K, Imel EA, Kamenický P, Ruppe MD, Portale AA, Weber T, Pitukcheewanont P, Cheong HI, de Beur S, Imanishi Y, Ito N, Lachmann RH, Tanaka H, Perwad F, Zhang L, Chen C, Theodore‐Oklota C, Mealiffe M, San Martin J, Carpenter TO, Investigators O. A Randomized, Double‐Blind, Placebo‐Controlled, Phase 3 Trial Evaluating the Efficacy of Burosumab, an Anti‐FGF23 Antibody, in Adults With X‐Linked Hypophosphatemia: Week 24 Primary Analysis. Journal Of Bone And Mineral Research 2018, 33: 1383-1393. PMID: 29947083, DOI: 10.1002/jbmr.3475.Peer-Reviewed Original ResearchConceptsTreatment-related serious adverse eventsMean serum phosphate concentrationWOMAC physical function subscaleFibroblast growth factor 23Intact parathyroid hormoneSerious adverse eventsPhase 3 trialPhysical function subscaleChronic musculoskeletal painGrowth factor 23Serum phosphate concentrationRenal phosphate wastingHuman monoclonal antibodyLower limb deformitiesImportant medical needStiffness subscalePlacebo groupUrine calciumWorst painAdverse eventsWeek 24Dental abscessMusculoskeletal painFactor 23Function subscale