PMID- 21455998 OWN - NLM STAT- MEDLINE DCOM- 20121207 LR - 20211020 IS - 1097-0142 (Electronic) IS - 0008-543X (Print) IS - 0008-543X (Linking) VI - 117 IP - 20 DP - 2011 Oct 15 TI - Nonmyeloablative allogeneic stem cell transplantation in relapsed/refractory chronic lymphocytic leukemia: long-term follow-up, prognostic factors, and effect of human leukocyte histocompatibility antigen subtype on outcome. PG - 4679-88 LID - 10.1002/cncr.26091 [doi] AB - BACKGROUND: The role of nonmyeloablative allogeneic stem cell transplantation (NST) in the treatment of chronic lymphocytic leukemia (CLL) is not well established. The authors report on long-term experience with NST in relapsed/refractory CLL and define prognostic factors associated with outcome. METHODS: The authors reviewed the outcome of 86 patients with relapsed/relapsed CLL enrolled in sequential NST protocols. RESULTS: The median patient age was 58 years. Patients were heavily pretreated before transplantation, and 43 required immunomanipulation after NST for persistent or recurrent disease. Immunomanipulation included withdrawal of immunosuppression, rituximab, and step-wise donor lymphocyte infusions. Of 43 patients receiving immunomanipulation, 20 (47%) experienced a complete remission. Patients with human leukocyte antigen (HLA) genotype A1(+) /A2(-) /B44(-) were more likely to experience a complete remission (P = .0009), with rates of 9%, 36%, 50%, and 91%, respectively, for 0, 1, 2, and 3 of these HLA factors. This resulted in significant improvement in progression-free-survival rates of 68.2% at 5 years for patients with all 3 HLA factors. Overall, the estimated 5-year survival rate was 51%. In a multivariate model, a CD4 count of <100/mm(3) and a below normal serum immunoglobulin G level at study entry were associated with a short survival duration (P < .0001). CONCLUSIONS: These results confirm the potential cure of relapsed/refractory CLL with NST and provide the first evidence that immunoglobulin G and CD4 levels are predictive of overall survival after NST in CLL and that human leukocyte antigen alleles predict response to immunomanipulation. CI - Copyright (c) 2011 American Cancer Society. FAU - Khouri, Issa F AU - Khouri IF AD - Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, USA. ikhouri@mdanderson.org FAU - Bassett, Roland AU - Bassett R FAU - Poindexter, Nancy AU - Poindexter N FAU - O'Brien, Susan AU - O'Brien S FAU - Bueso-Ramos, Carlos E AU - Bueso-Ramos CE FAU - Hsu, Yvonne AU - Hsu Y FAU - Ferrajoli, Alessandra AU - Ferrajoli A FAU - Keating, Michael J AU - Keating MJ FAU - Champlin, Richard AU - Champlin R FAU - Fernandez-Vina, Marcelo AU - Fernandez-Vina M LA - eng GR - P30 CA016672/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20110331 PL - United States TA - Cancer JT - Cancer JID - 0374236 RN - 0 (Antibodies, Monoclonal, Murine-Derived) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Immunoglobulin G) RN - 0 (Immunologic Factors) RN - 0 (Immunosuppressive Agents) RN - 4F4X42SYQ6 (Rituximab) SB - IM MH - Adult MH - Aged MH - Antibodies, Monoclonal, Murine-Derived/administration & dosage MH - Disease-Free Survival MH - Female MH - Follow-Up Studies MH - Graft vs Host Disease/immunology MH - *Hematopoietic Stem Cell Transplantation/methods MH - Histocompatibility Antigens Class I/blood/*immunology MH - Humans MH - Immunoglobulin G/blood MH - Immunologic Factors/administration & dosage MH - Immunosuppressive Agents/administration & dosage MH - Kaplan-Meier Estimate MH - Leukemia, Lymphocytic, Chronic, B-Cell/*immunology/mortality/*surgery/therapy MH - Male MH - Middle Aged MH - Predictive Value of Tests MH - Prognosis MH - Proportional Hazards Models MH - Recurrence MH - Risk Factors MH - Rituximab MH - Transplantation, Homologous MH - Treatment Outcome PMC - PMC4371600 MID - NIHMS668493 EDAT- 2011/04/02 06:00 MHDA- 2012/12/12 06:00 PMCR- 2015/03/24 CRDT- 2011/04/02 06:00 PHST- 2010/09/03 00:00 [received] PHST- 2011/01/23 00:00 [revised] PHST- 2011/02/10 00:00 [accepted] PHST- 2011/04/02 06:00 [entrez] PHST- 2011/04/02 06:00 [pubmed] PHST- 2012/12/12 06:00 [medline] PHST- 2015/03/24 00:00 [pmc-release] AID - 10.1002/cncr.26091 [doi] PST - ppublish SO - Cancer. 2011 Oct 15;117(20):4679-88. doi: 10.1002/cncr.26091. Epub 2011 Mar 31.