PFS被定义为研究（调查者评估）中经治疗医师所评估的从随即抽样开始到疾病进展或死亡的时间。

PFS was defined as the time from randomisation to disease progression or death as assessed by the treating physicians in the study (investigator-assessed).

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但是考虑到这个进展的时间长短不明，艾滋病预防界需要考虑通过联合不同的治疗方法预防该病。

However, taking into account the progress of unknown length of time, AIDS prevention community needs to consider the adoption of a joint of different treatment regimens to prevent the disease.

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