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- Ranta, Susanna, et al.
(författare)
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Dilemmas on emicizumab in children with haemophilia A : A survey of strategies from PedNet centres
- 2023
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Ingår i: Haemophilia. - 1351-8216. ; 29:5, s. 1291-1298
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: Haemophilia A care has changed with the introduction of emicizumab. Experience on the youngest children is still scarce and clinical practice varies between haemophilia treatment centres. Aim: We aimed to assess the current clinical practice on emicizumab prophylaxis within PedNet, a collaborative research platform for paediatricians treating children with haemophilia. Methods: An electronic survey was sent to all PedNet members (n = 32) between October 2022 and February 2023. The survey included questions on the availability of emicizumab, on the practice of initiating prophylaxis in previously untreated or minimally treated patients (PUPs or MTPs) and emicizumab use in patients with or without inhibitors. Results: All but four centres (28/32; 88%) responded. Emicizumab was available in clinical practice in 25/28 centres (89%), and in 3/28 for selected patients only (e.g. with inhibitors). Emicizumab was the preferred choice for prophylaxis in PUPs or MTPs in 20/25 centres; most (85%) started emicizumab prophylaxis before 1 year of age (30% before 6 months of age) and without concomitant FVIII (16/20; 80%). After the loading dose, 13/28 centres administered the recommended dosing, while the others adjusted the interval of injections to give whole vials. In inhibitor patients, the use of emicizumab during ITI was common, with low-dose ITI being the preferred protocol. Conclusion: Most centres choose to initiate prophylaxis with emicizumab before 12 months of age and without concomitant FVIII. In inhibitor patients, ITI is mostly given in addition to emicizumab, but there was no common practice on how to proceed after successful ITI.
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| 2. |
- Schmidt, David E., et al.
(författare)
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Long-term joint outcomes in adolescents with moderate or severe haemophilia A
- 2022
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Ingår i: Haemophilia. - : Wiley. - 1351-8216 .- 1365-2516. ; 28:6, s. 1054-1061
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: Favourable joint outcomes are expected with modern haemophilia A (HA) management. Evaluation of long-term treatment outcomes is hampered by the delay between bleeding episodes during childhood and resulting joint outcomes in adulthood. Aim: To measure the long-term joint health of adolescents with moderate and severe HA, according to severity and inhibitor status. Methods: Pilot cross-sectional study of five European PedNet centres in moderate and severe HA patients aged 10–19 years. Structured assessment of joint status by physical examination (HJHS) and ultrasound (HEAD-US). Results: In total, 141 HA patients were evaluable, 100 without inhibitors (81 severe, 19 moderate HA), and 41 severe HA with current/past inhibitors. On physical examination, 12/81 (15%) of severe HA without inhibitors, 3/19 (16%) of moderate HA, and 13/41 (32%) of severe HA patients with inhibitors exhibited joint abnormalities. Inhibitor persistence, longer inhibitor duration, and a high peak inhibitor level were associated with impaired joint health. Ultrasound showed joint damage (bone or cartilage) in 13/49 (27%) of severe HA without inhibitors, 1/12 (8%) of moderate HA, and 10/28 (36%) of severe HA patients with inhibitors. A discordant ankle evaluation by ultrasound versus physical examination was present in 53/169 joints (31%). Conclusions: Most adolescents with severe or moderate HA show favourable joint health. Future research with combined ultrasound and/or MRI is needed to better understand joint outcomes in the remaining patients. Patents with inhibitors showed a two-fold increased proportion with joint deterioration. Ultrasound paired with physical examination increases sensitivity for detection of joint damage.
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