TY - JOUR AU - Janneke I. Loomans, AU - Marieke J.H.A. Kruip, AU - Manuel Carcao, AU - Shannon Jackson, AU - Alice S. van Velzen, AU - Marjolein Peters, AU - Elena Santagostino, AU - Helen Platokouki, AU - Erik Beckers, AU - Jan Voorberg, AU - Johanna G. van der Bom, AU - Karin Fijnvandraat, AU - for the RISE consortium, PY - 2018/02/28 Y2 - 2024/03/29 TI - Desmopressin in moderate hemophilia A patients: a treatment worth considering JF - Haematologica JA - haematol VL - 103 IS - 3 SE - Articles DO - 10.3324/haematol.2017.180059 UR - https://haematologica.org/article/view/8393 SP - 550-557 AB - Desmopressin increases endogenous factor VIII levels in hemophilia A. Large inter-individual variation in the response to desmopressin is observed. Patients with a lower baseline factor VIII activity tend to show a reduced response, therefore, desmopressin is less frequently used in moderate hemophilia A patients (baseline factor VIII activity 1-5 international units/deciliter), even though factor VIII levels may rise substantially in some of them. We aim to describe the response to desmopressin in moderate hemophilia A patients and to identify predictors. We selected data on 169 patients with moderate hemophilia from the multicenter Response to DDAVP In non-severe hemophilia A patients: in Search for dEterminants (RISE) cohort study. Adequate response to desmopressin was defined as a peak factor VIII level ≥ 30, and excellent response as ≥ 50 international units/deciliter after desmopressin administration. We used univariate and multiple linear regression techniques to analyze predictors of the peak factor VIII level. Response was considered adequate in 68 patients (40%), of whom 25 showed excellent response (15%). Intravenous administration, age, pre-desmopressin factor VIII activity and von Willebrand factor antigen, peak von Willebrand factor activity and desmopressin-induced rise in von Willebrand factor antigen were significant predictors of peak factor VIII level and explained 65% of the inter-individual variation. In 40% of moderate hemophilia A patients, desmopressin response was adequate, thus it is important not to with-hold this group of patients from desmopressin responsiveness. Among the six predictors that we identified for desmopressin-induced factor VIII rise, factor VIII activity and desmopressin-induced rise in von Willebrand factor antigen had the strongest effect. ER -