Sophiris Bio, Inc., formerly Protox Therapeutics Inc., is a Canada-based biopharmaceutical company focused on the research, development and commercialization of products for the treatment of urological diseases. The Company has operations based in San Diego developing a treatment for benign prostatic hyperplasia (benign prostatic hyperplasia (BPH) or enlarged prostate). The Company has partnered with Kissei Pharmaceuticals for the development and commercialization of PRX302 in Japan. Sophiris Bio, Inc. is advancing a pipeline of receptor targeted fusion proteins based on three complementary technology platforms: PORxin, INxin and HUMxin. It focuses on diseases of the prostate via its PORxin platform candidate, PRX302, which has completed three clinical trials for the treatment of BPH, as well as two clinical trials for the treatment of localized recurrent prostate cancer.