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Athira Pharma Secures Exclusive Lasofoxifene Rights, Raises $90 Million to Advance Phase 3 Breast Cancer Program

Fresh funding is slated to carry the late-stage study toward a mid-2027 readout pending an expected closing next week.

Overview

  • Athira licensed lasofoxifene from Sermonix and obtained a parallel manufacturing license from Ligand.
  • The ELAINE-3 Phase 3 trial for ESR1-mutant metastatic breast cancer is more than halfway enrolled with data anticipated in mid-2027.
  • A private placement led by Commodore Capital, Perceptive Advisors and TCGX totals $90 million, with additional Series A and B warrants that could provide up to $146 million if exercised.
  • The private placement is expected to close around December 23 subject to customary conditions, and the company guides that proceeds extend its cash runway into 2028.
  • Deal terms include up to $100 million in milestones plus low single-digit royalties to Sermonix and up to $21 million per product plus mid-single to low-double digit royalties to Ligand.