Cyclophosphamide, doxorubicin, vincristine, and prednisone versus intensive chemotherapy in non-Hodgkin's lymphoma
Cyclophosphamide, doxorubicin, vincristine, and prednisone versus intensive chemotherapy in non-Hodgkin's lymphoma
复制标题
DOI:
10.1007/s002800051060
复制
发表时间:
1997-06-01
影响因子:
3
通讯作者:
Fisher, RI
中科院分区:
文献类型:
--
作者:
Fisher, RI
Therapy for aggressive non-Hodgkin's lymphomas has undergone significant evolution in the past 25 years. First-generation combination chemotherapy studies produced complete response (CR) rates of 45-53% together with 30-37% rates of long-term survival. New treatment programs aimed at increasing CR rates were then developed on the assumption that the additional patients who achieved a CR would become long-term disease-free survivors. Initial reports of single-institution pilot studies with third-generation regimens suggested CR and survival rates of 68-86% and 58-69%, respectively; however, after longer follow-up periods, survival rates decreased. Furthermore, confirmatory national phase II trials using these newer regimens produced CR rates of only 49-65% and survival rates of 50-61%. Thus, ultimate conclusions concerning the efficacy of these new regimens awaited the results of prospective randomized trials. The Southwest Oncology Group (SWOG) conducted a randomized trial comparing standard therapy, CHOP, to the third-generation chemotherapy regimens m-BACOD, ProMACE-CytaBOM, and MACOP-B. After 6 years, no difference in the response rate, progression-free survival, or overall survival has been found between CHOP and the third-generation regimens. For example, the 6-year estimates of progression-free survival are CHOP 33%, m-BACOD 36%, ProMACE-CytaBOM 34%, and MACOP-B 32% (P = 0.31). The 6-year overall survival estimates are CHOP 42%, m-BACOD 40%, ProMACE-CytaBOM 46%, and MACOP-B 41% (P = 0.89). Furthermore, we have not identified any subset of patients who survive longer on treatment with the third-generation regimens, and the cost and toxicity of the new regimens are higher. On the basis that