Hemophilia A With Inhibitor Clinical Trial
Official title:
Beijing Children's Hospital, Capital Medical University
The study start on January 18, 2017. The Severe(FⅧ<1%) and moderate hemophilia A (FⅧ1%~5%)children with high titer inhibitor(historical peak inhibitor titer≥5BU ) combining with poor ITI risk(s) were enrolled. The low-dose ITI was alone or combined with immunosuppression.
Poor risk(s) includes:①peak historical inhibitor titer≥200BU ②inhibitor titer≥10BU before ITI initiation ③peak inhibitor titer during ITI≥200BU ④time to titer decline to<10BU before ITI≥24 months ⑤age≥8 years at start of ITI ⑥ITI initiated ≥5 years after inhibitor diagnosis ⑦interruptions in ITI≥2 weeks in duration. The low-dose ITI strategy consist of FⅧ(25-50IU/kg)alone or combining with immunosuppression: prednisone and Rituximab when the inhibitor titer ≥40BU ml/ml before or during ITI. ;
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