Hsu Ying-chang of Ing Ton Biotechnologies, a company which develops genetically altered animal breeds and carries out cancer research, notes that clinical trials of gene therapy against cystic fibrosis and muscular dystrophy in the US during the past two years have also been unsuccessful.
研發基因轉殖動物與癌症研究的英騰生物科技公司負責人許英昌也指出，過去兩年來，美國也有以基因療法治療囊腫纖維病變及肌肉萎縮症的臨床實驗，結果都沒有成功。