ALPN-101 in Steroid-resistant or Steroid-refractory Acute GVHD

AIS-A02 is a Phase 1b open-label study of ALPN-101 administered to adult subjects with steroid-resistant or steroid-refractory acute graft versus host disease (aGVHD). It will be conducted at approximately 10 US sites. Up to 72 subjects will be enrolled in Part A (dose escalation) and up to 25 subjects will be enrolled in Part B (dose expansion). In each Part, safety and efficacy assessments will be performed throughout the dosing and follow-up periods, and multiple PK and PD samples will be collected.