Detailed Instructions: In this task, you are given a sentence in the Japanese language and your task is to convert it into the English language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
Q: 被験者は、彼らがすでに服用している薬剤と一緒に偽薬またはPA-457を与えられる。
A:
Test subjects will be administered either a placebo or PA-457 that will be taken in combination with the medication they already take.