Didier Blaise, MD, PhD, Paoli-Calmettes Institute, Marseille, France, discusses adding anti-thymocyte globulin (ATG) to post-transplantation cyclophosphamide in haploidentical stem-cell transplantation. Post-transplantation cyclophosphamide has become standard prophylaxis of GvHD. Dr Blaise discusses the possibility of adding ATG to post-transplantation cyclophosphamide to further reduce the incidence of GVHD. The results are promising, however, studies are in the early stages and cannot currently suggest an improvement. This interview took place during the 2020 Annual Meeting of the International Academy for Clinical Hematology (IACH).