A Study on the Outcomes of Recombinant Von Willebrand Factor on Demand Treatment and Prevention and Treatment of Bleeding During and After Surgery in Adults With Inherited Von Willebrand Disease in the United Kingdom (UK)

This study is a retrospective chart review study and will collect data on real world use of vonicog alfa (Recombinant Von Willebrand Factor \[rVWF\]). Von Willebrand disease (VWD) is the most common inherited bleeding disorder. rVWF is approved in Europe and UK to treat bleeding and to treat and prevent bleeding during surgeries in adults in 2018. This study will review and collect information on the treatment and bleed prevention of adult persons with inherited VWD with rVWF in UK. These data were already collected as a part of the routine care. The main aims of this study are to describe the use of rVWF in on-demand treatment of bleeding and the prevention of treatment and treatment of bleeding during surgeries. Other aims are to describe bleedings and their treatment as well as any surgeries before and after first treatment with rVWF and to gather information on the use of healthcare resources (such as hospital visits, emergency room visits, etc.).