Predictors of response to immunosuppressive therapy with antithymocyte globulin and cyclosporine and prognostic factors for survival in patients with severe aplastic anemia

Autor: Hyun Jung Jun, Myung Hee Chang, Ki-Hyun Kim, Hyo Song Kim, Jun H. Jang, Chul Won Jung, Dong Hyun Kim, Kyoung Ha Kim
Rok vydání: 2009
Předmět:
Zdroj: European journal of haematology. 84(2)
ISSN: 1600-0609
Popis: Background: Immunosuppressive therapy (IST) with antithymocyte globulin (ATG) plus cyclosporine (CSA) is standard therapy in patients with severe aplastic anemia (SAA) who do not have an available HLA-matched sibling donor. Methods and patients: The current study aimed to determine the predictive factors for response to IST in patients with SAA and to identify prognostic factors following IST. A total of 62 patients diagnosed with SAA who received IST with either rabbit ATG (n = 33) or horse ATG (n = 29) plus CSA between October 1994 and December 2007 were included. Results: With a median follow-up duration of 60.5 months, complete response and overall response were estimated to be 31% and 53%, respectively. The 4 yr overall survival rate was 75 ± 6%. In terms of predicting the response to IST, neutrophil counts above 0.3 × 109/L prior to IST were the only significant predictive factor (P = 0.02). Survival following IST was significantly different in favor of both the group showing high absolute reticulocyte counts (ARC) above 10.9 × 109/L prior to IST (P = 0.004) and the group achieving any response following IST (P = 0.002). Conclusions: Pre-IST neutrophil counts might predict the response to IST, while absolute ARCs prior to IST and response status after IST could be prognostic factors following IST.
Databáze: OpenAIRE