Evidence map›Paper›PMID 35439298›Full record

Trial reportBlood2022

Recombinant von Willebrand factor prophylaxis in patients with severe von Willebrand disease: phase 3 study results.

Frank W G Leebeek, Flora Peyvandi, Miguel Escobar, Andreas Tiede, Giancarlo Castaman, Michael Wang, Tung Wynn, Jovanna Baptista, Yi Wang, Jingmei Zhang and 2 more

Registry-linked trialOpen access · hybridAbstract readClinical Trial, Phase III
In one paragraph

Trial report in Blood, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02973087 (A PROSPECTIVE, PHASE 3, OPEN-LABEL, INTERNATIONAL MULTICENTER STUDY ON EFFICACY AND SAFETY OF PROPHYLAXIS WITH rVWF IN SEVERE VON WILLEBRAND DISEASE), which is not on this map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
5.0field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02973087 phase3completednot on this map

A PROSPECTIVE, PHASE 3, OPEN-LABEL, INTERNATIONAL MULTICENTER STUDY ON EFFICACY AND SAFETY OF PROPHYLAXIS WITH rVWF IN SEVERE VON WILLEBRAND DISEASE

TypeinterventionalSponsorTakedaRan2017 to 2020Enrolled29ConditionsVon Willebrand DiseaseArmsvon Willebrand factor (Recombinant), Antihemophilic Factor (Recombinant)
3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 34 citations in OpenAlex.

  1. Trial
  2. Efficacy of Wilate Prophylaxis in Reducing Nosebleeds in Patients with Severe VWD - A Post-hoc Analysis of the WIL-31 Study.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Trial
  3. Article
  4. Seventh Åland Island Meeting on von Willebrand Disease.Haemophilia : the official journal of the World Federation of Hemophilia · 2026
    Article
  5. von Willebrand disease: an illustrated review.Research and practice in thrombosis and haemostasis · 2026
    Review
  6. Article
  7. Article
  8. Menstrual outcomes are frequently overlooked in von Willebrand disease trials.Research and practice in thrombosis and haemostasis · 2026
    Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 8 institutions in 4 countries.

Frank W G LeebeekDepartment of Hematology, University Medical Center, Erasmus MC, Rotterdam, The Netherlands.ORCID 0000-0001-5677-1371
Flora PeyvandiFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Milan, Italy.ORCID 0000-0001-7423-9864
Miguel EscobarUniversity of Texas Health Science Center at Houston, Houston, TX.ORCID 0000-0002-2944-0240
Andreas TiedeDepartment of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany.ORCID 0000-0002-3600-8536
Giancarlo CastamanCenter for Bleeding Disorders and Coagulation, Careggi University Hospital, Florence, Italy.ORCID 0000-0003-4973-1317
Michael WangHemophilia and Thrombosis Center, University of Colorado Anschutz Medical Campus, Aurora, CO.
Tung WynnDepartment of Pediatrics, University of Florida, Gainesville, FL.ORCID 0000-0002-7331-4364
Jovanna BaptistaTakeda Development Center Americas, Inc., Lexington, MA; and.
Yi WangTakeda Development Center Americas, Inc, Cambridge, MA.ORCID 0000-0003-0733-5551
Jingmei ZhangTakeda Development Center Americas, Inc, Cambridge, MA.
Björn MellgårdTakeda Development Center Americas, Inc, Cambridge, MA.
Gülden ÖzenTakeda Development Center Americas, Inc, Cambridge, MA.
Takeda (United States) · USAzienda Ospedaliero-Universitaria Careggi · ITErasmus MC · NLMedizinische Hochschule Hannover · DEThe University of Texas Health Science Center at Houston · USUniversity of Colorado Anschutz Medical Campus · USUniversity of Florida · USUniversity of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

International guidelines conditionally recommend long-term prophylaxis in patients with von Willebrand disease (VWD) and severe and frequent bleeding. As recombinant von Willebrand factor (rVWF; vonicog alfa) may reduce the frequency of treated spontaneous bleeding events (BEs), we investigated the efficacy and safety of rVWF prophylaxis in adults with severe VWD. Patients with BEs requiring VWF therapy in the past year (on-demand VWF therapy [prior on-demand group] or plasma-derived VWF prophylaxis [pdVWF; switch group]) were enrolled in a prospective, open-label, nonrandomized, phase 3 study. The planned duration of rVWF prophylaxis was 12 months; starting rVWF dose was 50 ± 10 VWF: ristocetin cofactor (VWF:RCo) IU/kg twice weekly (prior on-demand group) or based on prior pdVWF weekly dose/dosing frequency (switch group). The primary endpoint was annualized bleeding rate (ABR) of treated spontaneous BEs (sABR) during rVWF prophylaxis. Over the 12-month study period, treated sABR decreased by 91.5% on-study vs historical sABR in 13 patients in the prior on-demand group, and by 45.0% in 10 patients in the switch group (model-based analysis ratio, 0.085; 95% confidence interval [CI], 0.021-0.346 and 0.550; 95% CI, 0.086-3.523, respectively). No treated spontaneous BEs were recorded in 84.6% (11/13) and 70.0% (7/10) of patients, respectively. The safety profile of rVWF was consistent with the previously established profile, with no new adverse drug reactions identified. Findings suggest that rVWF prophylaxis can reduce treated spontaneous BEs in patients previously receiving on-demand VWF therapy and maintains at least the same level of hemostatic control in patients who switch from prophylaxis with pdVWF to rVWF, with a favorable safety profile. This trial was registered at www.clinicaltrials.gov (#NCT02973087) and www.clinicaltrialsregister.eu (#EudraCT 2016-001478-14).

Indexed as

Hemostaticsvon Willebrand DiseasesAdultHemorrhageHumansProspective StudiesRecombinant Proteinsvon Willebrand FactorHemostaticsRecombinant Proteinsvon Willebrand Factor

Identifiers

PMID35439298
PMCPMC9283967
OpenAlexW4224230091

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.