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Muriel De Vos: Real-World Outcomes in Haemophilia A Without Inhibitors in the United States
Muriel De Vos/LinkedIn;Wolfgang Miesbach/researchgate.net
Apr 25, 2026, 04:43

Muriel De Vos: Real-World Outcomes in Haemophilia A Without Inhibitors in the United States

Muriel De Vos, VP Head of Global Medical Affairs Rare Diseases at Novo Nordisk, shared Wolfgang Miesbach’s post on LinkedIn:

“Real world data highlighting the reality ‘good’ is not good enough!

More than 38 percent of people living with Hemophilia A have breakthrough bleeding, irrespective of the prophylactic treatment they are on.

Still a gap remaining to optimize individual treatment and understanding the trade-offs that people with Hemophilia are making in their daily life, including treatment burden.

Congratulations to the authors.”

Wolfgang Miesbach, Professor of Medicine at Frankfurt University Hospital, shared a post on LinkedIn about a recent article by Allison P. Wheeler et al, published in Hemophilia, adding:

“Even with modern prophylaxis, people with moderate‑to‑severe haemophilia A continue to live with a meaningful burden of bleeding, pain and impaired quality of life.

New real‑world data in haemophilia A: 211 people with moderate‑to‑severe haemophilia A from the US.

Prophylaxis with:

  • SHL FVIII in 58 percent of participants
  • EHL FVIII in 38 percent of participants
  • Emicizumab in 39 percent of participants (many individuals received more than one class over time)

Longitudinal medical records plus PROMIS‑29 and pain surveys.

Some observations from this study:

  • Most participants still had more than 1 bleed/year, regardless of prophylaxis class – ‘low’ ABR – no disease burden.
  • On‑demand factor use remained frequent, signalling persistent breakthrough bleeding.
  • Pain medication use was high across all treatment groups, reflecting substantial chronic pain and pain flares.
  • PROMIS‑29 scores showed not only pain interference, but also pronounced sleep disturbance, fatigue, anxiety and restrictions in social roles and activities – impacting work, family life and participation in daily routines.

Why this matters?

These data underline that controlling bleed numbers alone is not enough.

We still need to better individualize therapy, proactively manage chronic and breakthrough pain, and systematically capture patient‑reported outcomes to understand the real physical, emotional and social burden of haemophilia A in clinical practice.

Congratulations to Allison Wheeler and co-authors for highlighting these important unmet needs in haemophilia A.”

Title: Treatment of Haemophilia A Without Inhibitors: Real-World Treatment Patterns and Clinical Outcomes in the US

Authors: Allison P. Wheeler, Lauren E. Amos, Shveta Gupta, Sylvie Bozzi, Gandarvaka Miles, Kalyani Hawaldar, Andrew Wilson, Gillian Hanson, Emily Cibelli, Amanda Wilson, Siddhi Umarje, Anne-Laure Tardy, Jennifer Dumont, Graham Neill, Alix Arnaud

Muriel De Vos: Real-World Outcomes in Haemophilia A Without Inhibitors in the United States

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Alix Arnaud Allison P. Wheeler Amanda Wilson Andrew Wilson Anne-Laure Tardy Emily Cibelli Gandarvaka Miles Gillian Hanson Graham Neill Health Hematology Hemophilia A Hemostasis News Hemostasis Today Jennifer Dumont Kalyani Hawaldar Lauren E. Amos Medicine Muriel De Vos Shveta Gupta Siddhi Umarje Sylvie Bozzi Wolfgang Miesbach
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