adequate and well-controlled studies的意思|示意

Or no animal studies have been conducted and there are no adequate and well-controlled studies in pregnant women.

或者，没有在动物中进行实验，也没有对妊娠妇女进行充分、严格的对照研究。

Animal studies have revealed no evidence of harm to the fetus, however, there are no adequate and well-controlled studies in pregnant women.

动物实验没有发现对胎儿有害的证据，但没有对妊娠妇女进行充分、严格的对照研究。

Or animal studies have shown an adverse effect, but adequate and well-controlled studies in pregnant women have failed to demonstrate a risk to the fetus.

或者，动物实验出现了不良作用，但对妊娠妇女进行了充分、严格的对照研究，没有发现对胎儿的危险。

I believe that the efficacy studies were adequate and well controlled.

我相信有效性研究是足够和适当对照的。

RESULTS: it is difficult to carry on the adequate, well-controlled studies in pregnant women and until now there are not definitive answers about many drugs effect on babies.

结果：针对孕妇的药物临床对照试验难以开展，尚有许多药物对胎儿的影响不明。