text_1: 所有 患者 在 纳入 本 试验 前均 接受 过 6 ~ 9 个 周期 的 一线 铂 类 化疗 , 并且 研究者 判定 患者 达到 完全 或 部分 缓解 .
  
text_2: before enrollment , all the patients had received six to nine cycles of first @-@ line platinum @-@ based chemotherapy , which had resulted in a complete or partial response , according to investigator assessment .
  