The development of a new drug is a very long and complex process. A multitude of activities must be completed before a new medicinal entity is approved for human use and can be applied by the patient. Many different disciplines and actors are involved, with the pharmaceutical industry playing a key role.

（缩略图，点击图片链接看原图）
试着翻译下：
新药研发是一个漫长又复杂的过程。在医药活性成分能用于人体并能给病人使用之前，有大量的工作要完成。其中涉及了许多规则与因素，这在医药工业生产中起着极其重要的作用。