Introduction: Primary prophylaxis is the current gold standard in haemophilia care for the prevention of bleeding and ensuing joint damage. Early detection of joint bleeding, whether symptomatic or subclinical, preferably during childhood, helps prevent joint deterioration and subsequent disability. The aim of this study is to evaluate the level of agreement between the Haemophilia Joint Health Score and the Haemophilia Early Arthropathy Detection with Ultrasound tools in children with severe haemophilia on primary and secondary prophylaxis.
Materials And Methods: All patients were followed up regularly at our centre. Elbows, knees and ankles were evaluated by physical examination using the Haemophilia Joint Health Score 2.1 (HJHS 2.1), and by ultrasound with HEAD-US score.
Results: A total of 80 children with haemophilia on prophylaxis were included in this study. Mean age was 10.8 years (range 4-18). We evaluated 480 joints, of which 423 (88.1%) were concordant with both tools, whereas 57 (11.9%) were discordant; 377 (78.5%) joints scored 0 on HJHS, 370 (77%) on HEAD-US and 345 (72%) on both tools. The overall Kappa concordance coefficient was .656. For elbows, knees and ankles the respective values were .783, .522 and .589. For HJHS scores greater than 3, all joints scored ≥1 on HEAD-US.
Conclusion: HJHS and HEAD-US are used to assess joint health in children with haemophilia on prophylaxis. In this study, the level of agreement between both tools was consistent with literature values only for the elbow joint.
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http://dx.doi.org/10.1111/hae.14312 | DOI Listing |
Hematology
December 2025
Department of Hematology, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu Second Clinical College of Chongqing Medical University, Chengdu, People's Republic of China.
Objectives: Whether intermediate-dose tertiary prophylaxis can improve quality of life and psychological health in adults with severe/moderate hemophilia A has not been determined. This research aims to explore the impact of intermediate-dose tertiary prophylaxis with recombinant human FVIII (rhFVIII) on quality of life, anxiety and depression in such individuals transitioned from on-demand treatment.
Methods: This retrospective analysis collected data from July 2019 to July 2022.
J Thromb Haemost
January 2025
Amsterdam UMC location University of Amsterdam, Department of Pediatric Hematology, Meibergdreef 9, Amsterdam, The Netherlands. Electronic address:
Persons with hemophilia A (PWHA) lack clotting factor VIII (FVIII) due to a genetic mutation in the F8 gene. The administration of FVIII concentrate leads to the development of neutralizing anti-FVIII antibodies (inhibitors) in about 30% of children with severe hemophilia A. The other 70% of children do not mount a detectable antibody response, suggesting that they may have developed tolerance towards FVIII.
View Article and Find Full Text PDFJ Thromb Haemost
January 2025
BioMarin Pharmaceutical Inc., Novato, CA, USA.
Background: Valoctocogene roxaparvovec, an adeno-associated virus vector that transfers a human factor VIII (FVIII) coding sequence to hepatocytes, provides bleeding protection for people with severe hemophilia A (HA).
Objective: Determine the efficacy and safety of valoctocogene roxaparvovec with concomitant prophylactic glucocorticoids in the open-label, single-arm, phase 3b GENEr8-3 trial.
Methods: Participants with severe HA who were using HA prophylaxis received one 6x10 vg/kg infusion of valoctocogene roxaparvovec concomitantly with daily prophylactic glucocorticoids (40 mg prednisolone equivalent/d weeks 0‒8; taper to 5 mg/d weeks 9‒19).
J Thromb Haemost
January 2025
Centre de Référence de l'Hémophilie, Hospices Civils de Lyon, UR4609 Universite Claude Bernard Lyon 1, Lyon, France. Electronic address:
Background: Efanesoctocog is a B-domain-deleted, Fc-fusion FVIII linked to the D'D3 domain of VWF and two XTEN polypeptides, designed for an ultra-extended half-life for prophylaxis in hemophilia A, but also aiding in managing acute bleeding or surgery in patients on long-term emicizumab. However, no current laboratory method accurately measures FVIII levels in the presence of emicizumab. We hypothesized that the chromogenic (CSA) FVIII assay, specifically calibrated for efanesoctocog using bovine coagulation factors, could provide an accurate assessment of efanesoctocog activity.
View Article and Find Full Text PDFEmerg Microbes Infect
December 2025
State Key Laboratory of Pathogenic Microorganisms, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, People's Republic of China.
Marburg virus disease (MVD) is a severe infectious disease caused by the Marburg virus (MARV), posing a significant threat to humans. MARV needs to be operated under strict biosafety Level 4 (BSL-4) laboratory conditions. Therefore, accessible and practical animal models are urgently needed to advance prophylactic and therapeutic strategies for MARV.
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