Chang speaks frankly: in 2000, before the third phase of the clinical trial was completed, he was still not 100 % reassured. It was only in 2003 when the drug finally received FDA approval that he genuinely felt this drug was a success.
張子文坦言，在 2000 年藥物尚未完成第 3 期臨床試驗前，心裡其實沒有百分之百的把握，直到 2003 年通過 FDA 審核，才真正覺得這個藥物是成功的。