1. Emicizumab prophylaxis in haemophilia A with inhibitors: Three years follow‐up from the UK Haemophilia Centre Doctors' Organisation (UKHCDO).
- Author
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Wall, Caroline, Xiang, Hua, Palmer, Ben, Chalmers, Elizabeth, Chowdary, Pratima, Collins, Peter W., Fletcher, Simon, Hall, Georgina W., Hart, Daniel P., Mathias, Mary, Sartain, Paul, Shapiro, Susan, Stephensen, David, Talks, Kate, and Hay, Charles R.M.
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HEALTH facilities , *EMICIZUMAB , *PHYSICIANS , *HEMOPHILIA , *HEMOPHILIACS - Abstract
Introduction: The UK National Haemophilia Database (NHD) collects data from all UK persons with haemophilia A with inhibitors (PwHA‐I). It is well‐placed to investigate patient selection, clinical outcomes, drug safety and other issues not addressed in clinical trials of emicizumab. Aims: To determine safety, bleeding outcomes and early effects on joint health of emicizumab prophylaxis in a large, unselected cohort using national registry and patient reported Haemtrack (HT) data between 01 January 2018 and 30 September 2021. Methods: Prospectively collected bleeding outcomes were analysed in people with ≥6 months emicizumab HT data and compared with previous treatment if available. Change in paired Haemophilia Joint Health Scores (HJHS) were analysed in a subgroup. Adverse events (AEs) reports were collected and adjudicated centrally. Results: This analysis includes 117 PwHA‐I. Mean annualised bleeding rate (ABR) was.32 (95% CI,.18;.39) over a median 42 months treatment with emicizumab. Within‐person comparison (n = 74) demonstrated an 89% reduction in ABR after switching to emicizumab and an increase in zero treated bleed rate from 45 to 88% (p <.01). In a subgroup of 37 people, total HJHS improved in 36%, remained stable in 46% and deteriorated in 18%, with a median (IQR) within‐person change of −2.0 (−9, 1.5) (p =.04). Three arterial thrombotic events were reported, two possibly drug related. Other AEs were generally non‐severe and usually limited to early treatment, included cutaneous reactions (3.6%), headaches (1.4%), nausea (2.8%) and arthralgia (1.4%). Conclusions: Emicizumab prophylaxis is associated with sustained low bleeding rates and was generally well‐tolerated in people with haemophilia A and inhibitors. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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