Fludarabine and cyclophosphamide based reduced intensity conditioning (RIC) regimens reduce rejection and improve outcome in Indian patients undergoing allogeneic stem cell transplantation for severe aplastic anemia

Bone Marrow Transplant. 2007 Jul;40(1):13-8. doi: 10.1038/sj.bmt.1705669. Epub 2007 Apr 23.

Abstract

Thirty-five patients (25 men and 10 women) with a median age of 20 years with severe aplastic anaemia (SAA) underwent HLA identical stem cell transplantation (HSCT) using a combination of fludarabine and cyclophosphamide +/- anti-thymocyte globulin between 2004 and 2006. Cyclosporine and mini methotrexate were used as GVHD prophylaxis. Graft source included peripheral blood stem cells (28) or G-CSF stimulated bone marrow (7). Two patients expired < 7 days post-HSCT while 32 (91.5%) patients engrafted with a median neutrophil and platelet engraftment time of 12 days each. Three patients (8.5%) developed veno-occlusive disease while acute GVHD occurred in 29% of evaluable patients, with chronic GVHD in 32%. At a mean follow-up of 22 months, 29 (82.8%) are alive and well. When compared with 26 patients previously transplanted using Cy200/antilymphocyte globulin, there was faster neutrophil engraftment (12 vs 16 days; P = 0.002) with significantly lower rejection rates (2.9 vs 30.7%; P = 0.003) and a superior event-free (82.8 vs 38.4%; P = 0.001) and overall survival (82.8 vs 46.1%; P = 0.005). A combination of fludarabine with cyclophosphamide +/- anti-thymocyte globulin reduces rejection and improves overall and event-free survival in Indian patients undergoing HSCT for severe aplastic anaemia.

MeSH terms

  • Adult
  • Anemia, Aplastic / therapy*
  • Antilymphocyte Serum / therapeutic use
  • Cyclophosphamide / therapeutic use*
  • Enzyme Inhibitors / therapeutic use
  • Female
  • Graft vs Host Disease / prevention & control
  • Humans
  • Immunosuppressive Agents / therapeutic use
  • India
  • Male
  • Retrospective Studies
  • Stem Cell Transplantation* / mortality
  • Survival Analysis
  • Transplantation Conditioning* / methods
  • Transplantation, Homologous / immunology*
  • Treatment Outcome
  • Vidarabine / analogs & derivatives*
  • Vidarabine / therapeutic use

Substances

  • Antilymphocyte Serum
  • Enzyme Inhibitors
  • Immunosuppressive Agents
  • Cyclophosphamide
  • Vidarabine
  • fludarabine