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Eli Lilly

​said ​on ​Tuesday it would buy Centessa ⁠Pharmaceuticals

‌in ⁠a deal valued at up to $7.8 billion as the U.S. ​drugmaker looks ​to diversify beyond ​its metabolic portfolio and expand into treatments for sleep disorders.

UK-based Centessa is developing treatments for ⁠excessive daytime ‌sleepiness and other neurological ⁠conditions. Its lead therapy is currently in mid-stage studies for narcolepsy or excessive daytime sleepiness.