BAY 81-8973 demonstrated efficacy, safety and joint status improvement in patients with severe haemophilia A in the LEOPOLD I extension for ?2 years
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Identificadores
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Fecha de publicación
2020Título de revista
EUROPEAN JOURNAL OF HAEMATOLOGY
Tipo de contenido
Journal Article
DeCS
proteínas recombinantes | resultado del tratamiento | hemartrosis | factor VIII | mediana edad | adulto | índice de gravedad de la enfermedad | calidad de vida | hemofilia A | anciano | adulto joven | humanos | ensayo clínico | adolescenteMeSH
Adult | Hemophilia A | Middle Aged | Adolescent | Severity of Illness Index | Hemarthrosis | Quality of Life | Clinical Trial | Humans | Treatment Outcome | Factor VIII | Young Adult | Recombinant Proteins | AgedResumen
OBJECTIVES: BAY 81-8973 (Kovaltry((R)) ), a full-length, unmodified, recombinant human factor VIII, provided excellent bleeding control for patients with haemophilia A in the pivotal 1-year LEOPOLD I trial. The LEOPOLD I extension evaluated long-term efficacy and safety of BAY 81-8973 prophylaxis. METHODS: After completing LEOPOLD I, patients continued receiving 20-50 IU/kg BAY 81-8973 two- or three-times weekly in the extension. Outcomes included annualised bleeding rate (ABR) and haemostasis during surgery. RESULTS: Fifty-five patients aged 12-65 years participated in the extension. Median (range) exposure days during the 2-year total study period was 309 (115-355). No patient switched regimens. Median (Q1; Q3) ABR for all bleeds was 2.0 (1.0; 6.1) during the pivotal study, 2.0 (0.0; 5.2) during the extension, and 2.0 (0.5; 5.5) combined. The proportion of joint bleeds affecting target joints decreased (pivotal study: 90.9%, extension: 60.0%). Haemostasis was assessed as excellent/good in all five major surgeries. One serious adverse event (myocardial infarction) occurred in a patient with cardiovascular risk factors. No patients developed inhibitors. CONCLUSIONS: BAY 81-8973 prophylaxis efficacy outcomes in the pivotal study were maintained or, in the case of joint protection, improved during the extension, with a safety and tolerability profile consistent with previous experience.
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