Itacitinib and Tocilizumab for Steroid Refractory Acute Graft Versus Host Disease

The treatment of acute and chronic GVHD consists mostly of steroids which has changed very little over the past 40 years. Response to current therapy for GVHD is far from perfect; only about 50% of patients respond to therapy and many of those responses are not durable. The current study is a phase I study dose de-escalation study where up to 6 patients will be enrolled into each dose level (2 levels), followed by an expansion cohort at the MTD. The goal of the study is to determine the maximum tolerated dose of the combination of itacitinib and tocilizumab. Once the MTD is determined, the investigator will enroll 10 additional patients as an expansion cohort to further define the safety profile of the combination and estimate its response rate.