期刊
GYNECOLOGIC ONCOLOGY
卷 117, 期 2, 页码 324-329出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ygyno.2010.01.040
关键词
Ovarian carcinoma; Platinum-resistant; Response; Disease control; Progression-free; Survival
资金
- National Cancer Institute [CA 27469]
- Gynecologic Oncology Group Statistical and Data Center [CA 37517]
Purpose. We investigated whether tumor response rate (TRR), disease control rate (OCR), or progression-free survival (PFS) was a valid surrogate for overall survival (OS) in phase II trials of second-line therapies for patients with platinum-resistant ovarian carcinoma (PROC). Methods. We retrospectively evaluated data from 11 second-line phase II trials conducted for PROC by the Gynecologic Oncology Group (COG). TRR included complete response and partial response (CR/PR) and OCR was defined as either tumor response or stable disease (CR/PR + SD). Survival by tumor response was analyzed using a landmark approach. Correlations of OS with TRR, DCR, and PFS were estimated. Results. Among 407 patients analyzed the TRR was 13.8% (56/407) and DCR was 38.8% (158/407). Median OS was 10.2 months while median PFS was only 2.4 months. Median OS among patients with a best response of CR/PR, SD, and progressive disease (PD) was 13.3, 12.1 and 5.7 months, respectively, showing no difference between CR/PR and SD. From a protocol level, DCR correlated better with OS (Pearson r = 0.748: Tau-b r = 0.514) compared to TRR (Pearson r=0.564; Tau-b r=0.404). PFS rate at 6 months (Pearson r = 0.661; Tau-b r=0.514) also correlated strongly with OS. Conclusions. This study demonstrates the limitations of the use of response rate alone in PROC. Clinical benefit, as defined by OS, appeared similar for patients with an objective response and those with SD. The DCR, by including tumor response and SD may have utility as a surrogate endpoint for survival in phase II therapeutic trials in PROC. (C) 2010 Published by Elsevier Inc.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据