Eli Lilly to acquire Scorpion Therapeutics mutant-selective PI3Kα inhibitor program
Indianapolis: Eli Lilly and Company and Scorpion Therapeutics, Inc., a private biotechnology company developing small molecule precision oncology therapies, have announced a definitive agreement for Lilly to acquire Scorpion's PI3Kα inhibitor program STX-478. STX-478 is a once-daily oral, mutant-selective PI3Kα inhibitor currently being evaluated in a Phase 1/2 clinical trial for breast cancer and other advanced solid tumors.
STX-478 could represent the next generation of PI3Kα targeting agents by selectively targeting the pathway in cancerous but not healthy cells, thus overcoming a key limitation of currently available medicines that target the PI3Kα pathway. This approach could potentially offer better disease control through deeper pathway inhibition, as well as improved tolerability.
"PI3Kα mutations occur in a meaningful proportion of hormone-positive breast cancers, and there is significant unmet need for new treatment options that effectively and safely target this pathway," said Jacob Van Naarden, executive vice president and president of Lilly Oncology. "The selectivity profile of STX-478 has led to a differentiated clinical profile, enabling use in combinations with standard-of-care therapies to potentially deliver meaningful impact in earlier treatment settings when there is the best opportunity to improve outcomes for patients. We look forward to leveraging the great work of the Scorpion team to date, along with Lilly's deep expertise in breast cancer, to further advance STX-478 with speed and focus."
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