Seagen (SGEN) Gets Positive CHMP Opinion for Bladder Cancer Drug Posted byZacks Equity Research December 20, 2021 Leave a comment on Seagen (SGEN) Gets Positive CHMP Opinion for Bladder Cancer Drug The CHMP gives a positive opinion on, and recommends approval to Seagen’s (SGEN) Padcev as a monotherapy for treating adult patients with locally advanced/metastatic urothelial cancer.