Then, in July 2007, the Legislative Yuan passed the Act for the Development of Biotech and New Pharmaceuticals Industry. Genentech announced that it was acquiring Tanox and its patents, including that to TNX-355, the following month.
2007 年 7 月，立法院通過《生技新藥產業發展條例》的次月，Genentech 宣布收購 Tanox，其中也包括 TNX-355 的一切權利。