** Drug developer's shares ITOS.O jump 48.2% to $29.69
premarket
** Co and London-listed GlaxoSmithKline GSK.L report deal
to make and sell ITOS' potential cancer treatment together
** ITOS to get $625 mln upfront payment, eligible for $1.45
bln more if programme meets certain milestones
** Co also eligible for royalty payments on sales outside
U.S.; two cos to share costs of development and profits in U.S
** Deal to develop EOS-448, a monoclonal antibody using an
anti-TIGIT agent that showed promise in early studies
** EOS-448 currently being tested in early-stage study in
patients with advanced solid tumors
** Cos plan to start combination studies of EOS-448 with
GSK's cancer drug, dostarlimab, in 2022
** ITOS stock down ~41% YTD, as of last close
(Reporting by Vishwadha Chander in Bengaluru)
((Vishwadha.Chander@thomsonreuters.com;))