以HAA方案诱导治疗成人初发急性髓系白血病疗效观察

目的 对1999年5月至2004年12月收治的80例成人初发急性髓系白血病(AML)患者,以HAA(高三尖杉酯碱、阿糖胞苷、阿柔比星)方案进行诱导治疗,探讨该方案治疗成人初发AML患者的有效性和安全性.方法 初发AML患者80例以HAA方案诱导治疗,计算完全缓解(CR)率,并采用Kaplan-Meier方法评估患者的无复发生存(RFS)率,组间患者RFS差异用Log-rank检验.结果 80例患者CR率为81%,其中1个疗程CR率为75%.除外4例早期死亡患者,76例患者中位随访时间为26(2～69)个月,3年预计总生存(OS)率为51%.对于达到CR的患者,3年预计RFS率为53%.按FAB分型分组,M5组CR率为74%,其CR患者的3年预计RFS率为75%,M1/M2组CR率为87%,其CR患者的3年预计RFS率为37%.按染色体核型分组,低危组、中危组与高危组的CR率分别为100%,83%和20%,其中低危组3年OS率为76%,中危组为50%,高危组的中位生存时间仅有6个月.结论 HAA方案可以作为成人初发AML患者的首选方案.通过1～2个疗程的化疗,能够获得比较高的CR率以及RFS率.

HAA regimen as induction chemotherapy for newly diagnosed acute myelogenous leukemia

OBJECTIVE: To analyse the outcome of newly diagnosed adult acute myeloid leukemia (AML) patients treated with HAA (homoharringtonine, cytarabine and aclarubicin) regimen and explore the efficacy and safety of this regimen. METHODS: Eighty patients were treated with HAA regimen. The complete remission (CR) rate was observed. Kaplan-Meier method was used to estimate relapse free survival (RFS) rate and the differences were compared with 2-sided log-rank test. RESULTS: Of the 80 patients, 65 (81%) attained CR and the CR rate after the first course of induction was 75%. For the CR patients, the median follow-up was 26 (2 -69) months, and the estimated 3-year overall survival (OS) rate was 51% and the estimated 3-year RFS was 53%. For the AML-M5 and AML-M /M2 patients the CR rate was 74% and 87% and 3 year RFS of CR patients was 75% and 37%, respectively. The CR rate of 100%, 83% and 20% was achieved in patients with favorable, intermediate and unfavorable cytogenetics, respectively. The 3 year OS for favarable and intermediate group was 76% and 50% respectively. The median survival time of unfavorable group was only 6 months. CONCLUSION: HAA regimen is a safe, efficacious, and well-tolerable induction therapy for newly diagnosed AML.