Projects

NuPOWER (Nuwiq for Perioperative management Of patients With haemophilia A on Emicizumab Regular prophylaxis): protocol for an open-label, single-arm, multicentre study

Groups and Associations Alok Srivastava1,2, Angela Kanny3, Florian Langer4, Cornelia Kubicek-Hofmann5, María Teresa Álvarez Román6, Ramiro Núñez Vázquez7, Ana Boban8,9, Violeta Dejanova-Ilijevska10, Predrag Miljić11,12, Jessica Garcia13, Susan Halimeh14, Nicolas Drillaud15, Jean-Baptiste Valentin16, Maria Elisa Mancuso17,18, Giancarlo Castaman19, Rita Carlotta Santoro20, Anna-Elina Lehtinen21, Aby Abraham22, Mariko Hashimoto23, Sigurd Knaub24
BMJ Open 2025

Despite the known haemostatic action of emicizumab (Hemlibra) in haemophilia A patients, its role in the prevention and control of bleeding in high-demand haemostatic situations, such as major surgery, remains to be determined. Patients receiving regular emicizumab prophylaxis often require concomitant factor VIII (FVIII) therapy during major surgery to prevent uncontrolled bleeding and to promote postoperative healing. However, there are limited prospective surgical data relating to concomitant FVIII and emicizumab use. Simoctocog alfa (Nuwiq) is a B-domain deleted recombinant FVIII produced in a human cell line without chemical modification or protein fusion with proven efficacy as surgical prophylaxis in adult and paediatric patients. The Nuwiq for Perioperative management Of patients With haemophilia A on Emicizumab Regular prophylaxis (NuPOWER) study aims to examine perioperative efficacy and safety of simoctocog alfa in haemophilia A patients on emicizumab prophylaxis undergoing major surgery.

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