South Korean pharmaceuticals Celltrion Inc. and Cyron Therapeutics Co. Ltd. are teaming up to discover and develop bispecific and trispecific antibodies, collectively called polyspecific antibodies, under the ₩1.158 trillion (US$882.38 million) joint research agreement inked on Dec. 6. Under the terms, privately held Daegu-based Cyron will discover and develop at least three polyspecific antibodies for blood and solid cancers pre-selected by Incheon-based Celltrion via Cryon’s CD-3 targeting T-cell engager platform that helps engage T cells to attack cancer cells.