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FVIII/W Ratio May Help Predict Relapse in Hemophilia A

Key clinical point: The FVIII/W (factor VIII:C/von Willebrand factor antigen) ratio may be an accurate biomarker to predict recovery and/or relapse in patients with acquired hemophilia A.

Major finding: Among 5 patients who relapsed during the study, the FVIII/W ratio was the first abnormal result detected in 4 cases.

Study details: A retrospective analysis of 64 patients with acquired hemophilia A.

Disclosures: No funding sources were reported. The authors reported having no conflicts of interest.


Trossaert M et al. Haemophilia. 2019 May 2. doi: 10.1111/hae.13752.