Phase I Trial of Brentuximab Vedotin for Steroid-Refractory Chronic Graft-versus-Host Disease after Allogeneic Hematopoietic Cell Transplantation

Biology of Blood and Marrow Transplantation : Journal of the American Society for Blood and Marrow Transplantation
Zachariah DeFilippYi-Bin Chen

Abstract

We conducted a phase I study of brentuximab vedotin (BV), an antibody-drug conjugate targeting CD30, for the treatment of steroid-refractory chronic graft-versus-host disease (cGVHD). A modified 3 + 3 study design was used with the primary endpoint to determine the maximum tolerated dose of BV in this population. Escalating doses of BV were planned, starting with .6 mg/kg every 3 weeks (dose level 0) and increasing by .3 mg/kg per dose level. BV was administered in 21-day cycles for up to 16 cycles of therapy. Nineteen patients were enrolled on the study, with 2 withdrawing consent before dosing. The median number of cycles of therapy was 4 (range, 1 to 16). Reasons for stopping therapy prematurely included toxicities (n = 9), patient decision (n = 3), lack of response (n = 2), and death (n = 1). There were 2 dose-limiting toxicities observed: posterior reversible encephalopathy syndrome (cohort 4, grade 3) and sepsis (cohort 4, grade 4). The maximum tolerated dose was not reached because the trial was prematurely closed due to toxicity. Seven patients (41%) developed grade 3 or 4 adverse events that were attributed to therapy, including 4 patients who developed moderate or severe peripheral neuropathy that led to cessation of ...Continue Reading

Citations

Jun 9, 2020·Blood Advances·Laetitia BoucaultCarole Guillonneau
Sep 29, 2019·Annals of Clinical and Translational Neurology·Maria GavriilakiVasilis Kimiskidis
Nov 10, 2020·Frontiers in Immunology·Nathaniel Edward Bennett SaiduSara Galimberti

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