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May, 2026
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A Novel Genetic Mechanism of Caplacizumab Resistance in iTTP – JTH
Apr 11, 2026, 12:26

A Novel Genetic Mechanism of Caplacizumab Resistance in iTTP – JTH

Journal of Thrombosis and Haemostasis (JTH) shared a post on LinkedIn about a recent article by Mari Thomas et al., adding:

“Caplacizumab Resistance in Immune Thrombotic Thrombocytopenic Purpura (iTTP) Associated with VWF A1 Domain Missense Variant

This landmark first report describes caplacizumab resistance in an iTTP patient caused by a VWF A1 domain missense variant (P1266L) that impairs drug binding, revealing a novel genetic mechanism of treatment failure beyond premature therapy discontinuation.”

Title: Caplacizumab resistance in immune thrombotic thrombocytopenic purpura is associated with a von Willebrand factor A1 domain missense variant

Authors: Mari Thomas, Imogen Buckle, Adela Constantinescu-Bercu, Rens De Groot, Sabina McCann, Marie Scully

Read the Full Article on JTH

A Novel Genetic Mechanism of Caplacizumab Resistance in iTTP - JTH

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