The approach builds upon extensive evidence supporting the benefit of CD40L blockade in disrupting key signaling events associated with immune activation. The trial addresses a pressing clinical need, namely prevention of Graft-Versus-Host Disease (GVHD) after hematopoietic cell transplantation (HCT) and promotion of donor-recipient immune tolerance. The safety profile of this anti-CD40L antibody overcomes major prior limitations, and the planned biologic studies will provide significant mechanistic insight.
