Improvement in clinical outcomes and replacement factor VIII use in patients with haemophilia A after factor VIII pharmacokinetic-guided prophylaxis based on Bayesian models with myPKFiT®

Haemophilia : the Official Journal of the World Federation of Hemophilia
María E Mingot-CastellanoM Martorell

Abstract

Patients with severe haemophilia A (HA) receive factor VIII (FVIII) replacement therapy as prophylaxis. myPKFiT® is an online medical application that allows authorized users to simulate dosing regimens with patient pharmacokinetic (PK) profiles based on only 2 blood samples. Our aim was to assess the impact of using this medical device in routine practice in terms of FVIII consumption and clinical outcomes. Thirty-six patients with severe HA on prophylaxis with Advate® were recruited in 3 centres in Spain. Annual bleeding rate (ABR), annual joint bleeding rate (AJBR) and annual FVIII consumption before and after adjustment were obtained using the patient's clinical history (12 months before) and prospectively recorded data (12 months after), respectively. Adjustment was based on PK parameters provided by myPKFiT® , joint status and relative risk associated with physical activity and bleeding phenotype. ABR and AJBR were significantly reduced after adjustment in the overall sample (-2.2 ± 1.3, P = .018 and -1.9 ± 1.2, P = .012, respectively) and in patients aged >15 years (-2.6 ± 1.4, P = .011 and -2.0 ± 1.2, P = .005, respectively). Adjustment had an effect on the individual FVIII consumption of most patients: annual amount wa...Continue Reading

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Citations

Jul 13, 2019·Clinical and Applied Thrombosis/hemostasis : Official Journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis·Jenny Y ZhouAnnette von Drygalski
Jun 4, 2020·Haemophilia : the Official Journal of the World Federation of Hemophilia·Steven W Pipe
May 12, 2020·Frontiers in Pharmacology·Rachel J TysonDaniel Gonzalez
Mar 23, 2021·Haemophilia : the Official Journal of the World Federation of Hemophilia·Alexandros ArvanitakisJan Astermark

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