Efficacy and Safety of UCBT With TMI -Based Conditioning Regimen for Adults With Refractory/Relapsed Aplastic Anemia

Summary

Refractory/relapsed aplastic anemia (AA) in adults remains a clinical challenge that is frequently encountered and urgently needs to be resolved. Salvage treatment should prioritize hematopoietic stem cell transplantation (HSCT). Unrelated cord blood is an ideal source of hematopoietic stem cells due to its easy availability, low immunogenicity, and low incidence of chronic graft-versus-host disease (cGVHD) after transplantation.The optimization of the conditioning regimen for UCBT is a crucial factor in determining patient outcomes. This is a Phase II clinical study. A total of 11 adult patients with refractory/relapsed AA will be treated with a UCBT regimen based on a TMI-based conditioning regimen. Patients who meet the inclusion/exclusion criteria will sign an informed consent form before undergoing cord blood transplantation. The efficacy (12-month EFS) and safety of the regimen will be assessed 12 months after transplantation.

Timeline

Start

2025-07-20

Primary completion

2028-01

Completion

2028-06

Publications

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• Background Harris AC, Young R, Devine S, Hogan WJ, Ayuk F, Bunworasate U, Chanswangphuwana C, Efebera YA, Holler E, Litzow M, Ordemann R, Qayed M, Renteria AS, Reshef R, Wolfl M, Chen YB, Goldstein S, Jagasia M, Locatelli F, Mielke S, Porter D, Schechter T, Shekhovtsova Z, Ferrara JL, Levine JE. International, Multicenter Standardization of Acute Graft-versus-Host Disease Clinical Data Collection: A Report from the Mount Sinai Acute GVHD International Consortium. Biol Blood Marrow Transplant. 2016 Jan;22(1):4-10. doi: 10.1016/j.bbmt.2015.09.001. Epub 2015 Sep 16.
• Background Kurtzberg J, Troy JD, Page KM, El Ayoubi HR, Volt F, Maria Scigliuolo G, Cappelli B, Rocha V, Ruggeri A, Gluckman E. Unrelated Donor Cord Blood Transplantation in Children: Lessons Learned Over 3 Decades. Stem Cells Transl Med. 2023 Jan 30;12(1):26-38. doi: 10.1093/stcltm/szac079.
• Background Hiramoto N, Yamazaki H, Nakamura Y, Uchida N, Murata M, Kondo T, Yoshioka S, Eto T, Nishikawa A, Kimura T, Ichinohe T, Atsuta Y, Onishi Y, Suzuki R, Mori T; Adult Aplastic Anemia Working Group of the Japanese Society for Hematopoietic Cell Transplantation. Total body irradiation-containing conditioning regimens without antithymocyte globulin in adults with aplastic anemia undergoing umbilical cord blood transplantation. Ann Hematol. 2022 Jan;101(1):165-175. doi: 10.1007/s00277-021-04664-z. Epub 2021 Sep 21.
• Background Peffault de Latour R, Purtill D, Ruggeri A, Sanz G, Michel G, Gandemer V, Maury S, Kurtzberg J, Bonfim C, Aljurf M, Gluckman E, Socie G, Passweg J, Rocha V. Influence of nucleated cell dose on overall survival of unrelated cord blood transplantation for patients with severe acquired aplastic anemia: a study by eurocord and the aplastic anemia working party of the European group for blood and marrow transplantation. Biol Blood Marrow Transplant. 2011 Jan;17(1):78-85. doi: 10.1016/j.bbmt.2010.06.011. Epub 2010 Jun 16.
• Background Red Blood Cell Disease (Anemia) Group, Chinese Society of Hematology, Chinese Medical Association. [Guidelines for the diagnosis and management of aplastic anemia in China (2022)]. Zhonghua Xue Ye Xue Za Zhi. 2022 Nov 14;43(11):881-888. doi: 10.3760/cma.j.issn.0253-2727.2022.11.001. No abstract available. Chinese.
• Background Valdez JM, Scheinberg P, Nunez O, Wu CO, Young NS, Walsh TJ. Decreased infection-related mortality and improved survival in severe aplastic anemia in the past two decades. Clin Infect Dis. 2011 Mar 15;52(6):726-35. doi: 10.1093/cid/ciq245.
• Background Peffault de Latour R, Kulasekararaj A, Iacobelli S, Terwel SR, Cook R, Griffin M, Halkes CJM, Recher C, Barraco F, Forcade E, Vallejo JC, Drexler B, Mear JB, Smith AE, Angelucci E, Raymakers RAP, de Groot MR, Daguindau E, Nur E, Barcellini W, Russell NH, Terriou L, Iori AP, La Rocca U, Sureda A, Sanchez-Ortega I, Xicoy B, Jarque I, Cavenagh J, Sicre de Fontbrune F, Marotta S, Munir T, Tjon JML, Tavitian S, Praire A, Clement L, Rabian F, Marano L, Hill A, Palmisani E, Muus P, Cacace F, Frieri C, van Lint MT, Passweg JR, Marsh JCW, Socie G, Mufti GJ, Dufour C, Risitano AM; Severe Aplastic Anemia Working Party of the European Society for Blood and Marrow Transplantation. Eltrombopag Added to Immunosuppression in Severe Aplastic Anemia. N Engl J Med. 2022 Jan 6;386(1):11-23. doi: 10.1056/NEJMoa2109965.
• Background Kulasekararaj A, Cavenagh J, Dokal I, Foukaneli T, Gandhi S, Garg M, Griffin M, Hillmen P, Ireland R, Killick S, Mansour S, Mufti G, Potter V, Snowden J, Stanworth S, Zuha R, Marsh J; BSH Committee. Guidelines for the diagnosis and management of adult aplastic anaemia: A British Society for Haematology Guideline. Br J Haematol. 2024 Mar;204(3):784-804. doi: 10.1111/bjh.19236. Epub 2024 Jan 21.

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