Intensified Conditioning Regimen With High-Dose-Etoposide for Allo-HSCT for Adult Acute Lymphoblastic Leukemia

Summary

Evolving paradigms in the treatment of adult ALL include the application of intense pediatric regimens to the treatment of adolescents and young adults (AYA) and the optimization of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the cure of patients. The Cancer and Leukemia Group B (CALGB) and the Children's Cancer Group (CCG) first asked whether AYA between the ages of 16 and 20 fared differently whether they were treated on pediatric protocols. The results of this study demonstrated that although the complete remission rates were identical for the AYAs treated on the CALGB and CCG trials, the AYAs had a 63% event-free survival (EFS) and 67% OS at 7 years on the CCG trials compared with 34% and 46%, respectively, on the CALGB trials. High relapse and transplantation-related-mortality still remains great challenge for HSCT of adult ALL, which both range between 25% and 30%. Recently, risk-adapted indication and optimization of conditioning regimen are highlighted, which aiming to reduce TRM and relapse rate, respectively.City of Hope National Medical Center studied the substitution of etoposide (VP-16) for CY in the treatment of ALL patients receiving HCT. The result suggested that etoposide and TBI are associated with a decreased relapse rate following transplantation for ALL, compared with those receiving CY and TBI. Japanese and Germany reports pronounced the advantage of VP-16 in intensified regimen for adult ALL. On the same time, the investigators previous researches have confirmed the effect and safety of FA-intensified conditioning regimen on relapse and refractary leukemia. Based on mentioned above, the investigators speculate that VP-16-intensified conditioning regimen could improve the outcome for adult ALL. The potential mechanism will be attributed to reduce MRD and promote GVL effect via providing enough time-window for immuno-reconstitution by high-dose preparative regimen.

Timeline

Start

2011-10

Primary completion

2015-12

Completion

2016-12

Publications

• Background Liu QF, Fan ZP, Zhang Y, Jiang ZJ, Wang CY, Xu D, Sun J, Xiao Y, Tan H. Sequential intensified conditioning and tapering of prophylactic immunosuppressants for graft-versus-host disease in allogeneic hematopoietic stem cell transplantation for refractory leukemia. Biol Blood Marrow Transplant. 2009 Nov;15(11):1376-85. doi: 10.1016/j.bbmt.2009.06.017. Epub 2009 Aug 19.
• Background Ottmann OG, Pfeifer H. Management of Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL). Hematology Am Soc Hematol Educ Program. 2009:371-81. doi: 10.1182/asheducation-2009.1.371.
• Background Laport GG, Alvarnas JC, Palmer JM, Snyder DS, Slovak ML, Cherry AM, Wong RM, Negrin RS, Blume KG, Forman SJ. Long-term remission of Philadelphia chromosome-positive acute lymphoblastic leukemia after allogeneic hematopoietic cell transplantation from matched sibling donors: a 20-year experience with the fractionated total body irradiation-etoposide regimen. Blood. 2008 Aug 1;112(3):903-9. doi: 10.1182/blood-2008-03-143115. Epub 2008 Jun 2.
• Background Seibel NL. Treatment of acute lymphoblastic leukemia in children and adolescents: peaks and pitfalls. Hematology Am Soc Hematol Educ Program. 2008:374-80. doi: 10.1182/asheducation-2008.1.374.
• Background Pui CH, Evans WE. Treatment of acute lymphoblastic leukemia. N Engl J Med. 2006 Jan 12;354(2):166-78. doi: 10.1056/NEJMra052603. No abstract available.
• Background Kantarjian H, Thomas D, O'Brien S, Cortes J, Giles F, Jeha S, Bueso-Ramos CE, Pierce S, Shan J, Koller C, Beran M, Keating M, Freireich EJ. Long-term follow-up results of hyperfractionated cyclophosphamide, vincristine, doxorubicin, and dexamethasone (Hyper-CVAD), a dose-intensive regimen, in adult acute lymphocytic leukemia. Cancer. 2004 Dec 15;101(12):2788-801. doi: 10.1002/cncr.20668.
• Background Rowe JM, Buck G, Burnett AK, Chopra R, Wiernik PH, Richards SM, Lazarus HM, Franklin IM, Litzow MR, Ciobanu N, Prentice HG, Durrant J, Tallman MS, Goldstone AH; ECOG; MRC/NCRI Adult Leukemia Working Party. Induction therapy for adults with acute lymphoblastic leukemia: results of more than 1500 patients from the international ALL trial: MRC UKALL XII/ECOG E2993. Blood. 2005 Dec 1;106(12):3760-7. doi: 10.1182/blood-2005-04-1623. Epub 2005 Aug 16.
• Background Goldstone AH, Richards SM, Lazarus HM, Tallman MS, Buck G, Fielding AK, Burnett AK, Chopra R, Wiernik PH, Foroni L, Paietta E, Litzow MR, Marks DI, Durrant J, McMillan A, Franklin IM, Luger S, Ciobanu N, Rowe JM. In adults with standard-risk acute lymphoblastic leukemia, the greatest benefit is achieved from a matched sibling allogeneic transplantation in first complete remission, and an autologous transplantation is less effective than conventional consolidation/maintenance chemotherapy in all patients: final results of the International ALL Trial (MRC UKALL XII/ECOG E2993). Blood. 2008 Feb 15;111(4):1827-33. doi: 10.1182/blood-2007-10-116582. Epub 2007 Nov 29.
• Background Huguet F, Leguay T, Raffoux E, Thomas X, Beldjord K, Delabesse E, Chevallier P, Buzyn A, Delannoy A, Chalandon Y, Vernant JP, Lafage-Pochitaloff M, Chassevent A, Lheritier V, Macintyre E, Bene MC, Ifrah N, Dombret H. Pediatric-inspired therapy in adults with Philadelphia chromosome-negative acute lymphoblastic leukemia: the GRAALL-2003 study. J Clin Oncol. 2009 Feb 20;27(6):911-8. doi: 10.1200/JCO.2008.18.6916. Epub 2009 Jan 5.
• Background Marks DI, Forman SJ, Blume KG, Perez WS, Weisdorf DJ, Keating A, Gale RP, Cairo MS, Copelan EA, Horan JT, Lazarus HM, Litzow MR, McCarthy PL, Schultz KR, Smith DD, Trigg ME, Zhang MJ, Horowitz MM. A comparison of cyclophosphamide and total body irradiation with etoposide and total body irradiation as conditioning regimens for patients undergoing sibling allografting for acute lymphoblastic leukemia in first or second complete remission. Biol Blood Marrow Transplant. 2006 Apr;12(4):438-53. doi: 10.1016/j.bbmt.2005.12.029.

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