Lassen Therapeutics Announces Closing Of Oversubscribed $85 Million Series B Financing And Announces First Patient Dosed In The Phase 1 Trial Evaluating Lasn01 In Thyroid Eye Disease

Lassen Therapeutics, a clinical stage biotech company developing first-in-class antibody therapeutics, LASN01, targeting interleukin-11 receptor (IL-11R) as a potential treatment for fibro-inflammatory diseases such as TED and IPF, and a highly potent, first-in-class monoclonal antibody, LASN500, targeting the interleukin-18 binding protein (IL-18BP) as a potential treatment for cancer, today announced the closing of an oversubscribed Series B financing which raised $85 million. Frazier Life Sciences co-led the financing along with new investor Longitude Capital. The syndicate also included new investors BVF Partners and Catalio Capital Management as well as existing investors, Alta Partners and Longwood Capital. Concurrent with this financing, Brian Liu, M.D