Vonicog alfa (rVWF) use in children with von Willebrand disease
Official title: Vonvendi Intravenous Specified Drug Use-results Survey "Pediatric Administration"
Run by Takeda · NCT07404644 · Data updated 2026-11-12
This observational program will see how vonicog alfa (rVWF) works and whether it causes side effects in children with von Willebrand disease in Japan.
Quick facts
| Study type | Observational |
|---|---|
| Ages | Any age to 17 Years |
| Sex | All |
| Enrollment | 13 (estimated) |
| Sponsor | Takeda Industry-sponsored |
| Locations | 1 site (Tokyo, Tokyo) |
| Status | Recruiting |
| Started | February 19, 2026 |
| Main results expected | May 30, 2031 |
| Study ends | May 30, 2031 |
| Registry record updated | February 23, 2026 |
| Trial ID | NCT07404644 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Children under 18 with von Willebrand disease who receive vonicog alfa for hemostatic treatment during bleeding episodes or perioperative periods in Japan, with administration after pediatric approval, are ideal candidates.
✕Probably not a fit
Adults, children not treated with rVWF, or patients enrolled in other rVWF clinical trials are not expected to benefit from participation in this observational program.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is an observational follow-up of pediatric patients in Japan who are given vonicog alfa (rVWF) as part of routine care for bleeding episodes or around surgery. Investigators will record adverse drug reactions and clinical effectiveness for one year after the start of rVWF administration. Treatment decisions are made by the patients' physicians under normal practice and the sponsor will only collect data on what happens. Patients already enrolled in other rVWF clinical trials are excluded.
Why it matters
Potential benefit: If successful, the study could provide real-world pediatric safety and effectiveness data to help clinicians and families make more informed treatment decisions.
How similar studies have gone: Recombinant VWF products have shown efficacy and acceptable safety in adults and some pediatric reports, but comprehensive real-world pediatric data remain limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria : * Under 18 years old with vWD. * Participants who are treated with rVWF for the purpose of hemostatic treatment and management during bleeding episodes or perioperative periods. * Participants who have prescription or administration after the approval date of rVWF for pediatric use in Japan. Exclusion Criteria : \- Patients who are participating in clinical trials of rVWF.
Where it's running
-
Takeda selected site
Tokyo, Tokyo, Japan Recruiting
Study contacts
- Study coordinator: Takeda Contact
- Email: medinfoUS@takeda.com
- Phone: +1-877-825-3327
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.