** Shares of infectious diseases treatment developer Summit
Therapeutics Inc SMMT.O rise ~53% to $1.20 premarket - one of
the top pct gainers among U.S. stocks
** Co signs up to $5 bln licensing deal with China-based
Akeso Inc 9926.HK for experimental cancer therapy ivonescimab
** The deal involves an upfront payment of $500 mln to Akeso
** Akeso will be eligible for regulatory and commercial
milestone payments of up to $4.5 bln and low double-digit
royalties on net sales
** Summit plans to start treating patients by Q2 2023
** SMMT to receive the rights to develop and commercialize
ivonescimab in the United States, Canada, Europe, and Japan
** Up to Monday's close, stock down ~71% YTD vs ~9% decline
in Nasdaq Biotechnology index .NBI
(Reporting by Sriparna Roy)
((Sriparna.Roy@thomsonreuters.com))