A Phase 3, Prospective, Multicenter, Uncontrolled, Open-Label Clinical Study to Determine the Efficacy, Safety, and Tolerability of rVWF With or Without ADVATE in the Treatment and Control of Bleeding Episodes, the Efficacy and Safety of rVWF in Elective and Emergency Surgeries, and the Pharmacokinetics (PK) of rVWF in Children Diagnosed With Severe Von Willebrand Disease

Summary

The main aim of the study is to check effectiveness, side effects, and tolerability of vonicog alfa (recombinant von Willebrand factor \[rVWF\]), with or without ADVATE, in the treatment and control of nonsurgical bleeding events in pediatric participants (less than (\<)18 years of age) with severe hereditary von Willebrand disease (VWD). The participants will be treated with vonicog alfa for 12-18 months. Their von Willebrand Disease will be treated by their doctor according to their doctor's usual clinical practice. During the study, participants will be followed up at clinics or over telephone calls.

Eligibility

Age range

Up to 17 years

Sex

All