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Post-Transplant Cyclophosphamide versus Anti-Thymocyte Globulin in Patients with Hematological Malignancies Treated with Allogeneic Hematopoietic Stem Cell Transplantation from Haploidentical and Matched Unrelated Donors: A Real-Life Experience
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Bianca Serio, Gabriella Storti, Matteo D’Addona, Lidia Santoro, Camilla Frieri, Danilo De Novellis, Luana Marano, Giovanna De Santis, Roberto Guariglia, Ilenia Manfra, Eleonora Urciuoli, Serena Luponio, Serena Marotta, Denise Morini, Michela Rizzo, Fausto Palmieri, Nicola Cantore, Valentina Giudice, Antonio Maria Risitano and Carmine Selleri
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Abstract
Background: Post-transplant cyclophosphamide (PTCY) is widely used as graft versus host disease (GvHD) prophylaxis in allogeneic hematopoietic stem cell transplant (HSCT) recipients, with reported clinical benefits in patients who underwent transplant from a matched unrelated donor (MUD). However, real-life data on clinical efficacy
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Background: Post-transplant cyclophosphamide (PTCY) is widely used as graft versus host disease (GvHD) prophylaxis in allogeneic hematopoietic stem cell transplant (HSCT) recipients, with reported clinical benefits in patients who underwent transplant from a matched unrelated donor (MUD). However, real-life data on clinical efficacy and safety of PTCY in haploidentical and MUD transplantations are still poor.
Methods: In our real-life retrospective observational study, we included a total of 40 consecutive adult patients who underwent haploidentical or MUD HSCT for various hematological malignancies and who received PTCY (
n = 24) or ATG (
n = 16) as GvHD prophylaxis at Hematology Units from hospitals of Salerno and Avellino, Italy, and clinical outcomes were compared.
Results: We showed protective effects of PTCY against disease relapse with the relapse rate after transplantation of 16% versus 50% in the ATG arm (
p = 0.02). All-cause mortality was lower (36% vs. 75%;
p = 0.02) and the 2-year overall survival was slightly superior in patients administered PTCY (61% vs. 42%;
p = 0.26).
Conclusions: We support the use of PTCY, even in a real-life setting; however, the optimization of this protocol should be further investigated to better balance relapse prevention and GvHD prophylaxis.
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