环磷酰胺联合羟基喜树碱二线治疗进展期尤文肉瘤的临床观察

目的探讨环磷酰胺(CTX)联合羟基喜树碱(HCPT)二线治疗进展期尤文肉瘤的疗效和不良反应。方法收集一线化疗失败的进展期尤文肉瘤患者27例,给予CTX联合HCPT治疗,具体为:CTX 0.6g/m2静推,d1;HCPT 6mg/m2静滴,d1～d5,21天为1周期。观察患者的疗效和不良反应。结果 27例患者均可评价疗效及不良反应。全组患者获CR 2例(7.4%),PR 6例(22.2%),SD 14例(51.9%),PD 5例(18.5%),有效率为29.6%(8/27),疾病控制率为81.5%(22/27)。主要不良反应为骨髓抑制、胃肠道反应和脱发。所有患者随访5～24个月,无进展生存期(PFS)为3～10个月,中位PFS为7个月;总生存期(OS)为5～18个月,中位OS为11个月;1年生存率为48.1%。至2010年11月死亡9例,无化疗相关性死亡,无瘤生存2例,带瘤生存16例。结论进展期尤文肉瘤患者一线化疗失败后用CTX联合HCPT二线治疗能够有效控制肿瘤进展,不良反应可以耐受,值得进一步深入研究。

Clinical observation of cyclophosphamide combined with hydroxycamptothecin as second-line treatment on advanced Ewing's sarcoma

Objective To evaluate the efficacy and adverse effect of cyclophosphamide combined with hydroxycamptothecin as the second-line treatment for advanced Ewing's sarcoma(EWS). Methods Twenty-seven patients with advanced Ewing's sarcoma failed with the first-line chemotherapy of VAC/IE regimen were given cyclophosphamide(0.6g/m2 ivp d1) and hydroxycamptothecin(6mg/m2 iv d1-d5).Twenty-one days were regarded as a cycle.Progression-free survival(PFS),overall survival(OS),1-year survival rate and adverse effect were...