Detecting Anti-Drug Antibodies to Emicizumab: A French Center’s Remarkable Experience
Thrombosis & Haemostasis Journal (TH Open) has recently shared a promising data on Emicizumab efficacy on X:
”Implementing an Assay to detect Anti-drug Antibody against Emicizumab: Experience from One Center in France. Auditeau et al. evaluated the effectiveness of a modified bridging ELISA in detecting anti-drug antibodies.”
Read the full article here.
A bispecific antibody mimicking factor VIII, is approved for prophylaxis in hemophilia A — but what could possibly go wrong with a drug designed to work perfectly?
Although rare, anti-drug antibodies (ADA) can reduce its efficacy,using data from One center in France.
The study by Claire Auditeau et al. aimed to investigate potential causes behind the loss of Emicizumab efficacy.
Using a modified bridging ELISA, ADA was detected in two patients—one newly identified with a neutralizing ADA that blocked Emicizumab’s binding to factors IX and X.
In ADA-negative cases, bispecific antibody’s levels improved following adherence adjustments.
The findings suggest that the assay may help distinguish ADA-related loss of efficacy from non-immunologic causes in patients with unexplained bleeding.
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