As an editorialist noted, the study did not include an active comparator and was relatively short in duration.

正如一位评论人员所指出，该研究并未包含活性药物对照组，且持续时间相对较短。

youdao

Trials were included if they were randomized, double-blinded, and controlled with placebo or active comparator.

这些试验包括，是否是随机，双盲，安慰剂对照或活动比较仪。

youdao

In these trials, 15 560 patients were assigned to rosiglitazone and 12 283 received placebo or an active comparator.

在这些试验中，15560名受试者被分配到罗格列酮组，12283接受安慰剂或活性对比药物组。

youdao

Proving an incrementally better product enhances value can be expensive (because it takes many patients to demonstrate a small difference in an active comparator trial), and of course, risky as well.

FORBES: Strategy: Why Big Pharmas Do What They Do -- And How Silicon Valley Might Help Them Think Differently