1 文書を見つけるための辞書。

• phase iv, phase iv clinical trial
• 第四相
• sometimes the FDA approves a drug for general use but requires the manufacturer to continue to monitor its effects; during this phase the drug may be tried on slightly different patient populations than those studied in earlier trials
• 時々、FDAは一般的な使用のために薬を認可するが、その影響を監視し続けることをメーカーに要求する