** Shares of drug developer Agios Pharmaceuticals AGIO.O
rise 22.2% to $38.50 premarket
** Co to receive $1.1 bln in payments upon FDA approval of
vorasidenib, French drug developer Servier's brain tumor
treatment
** Co plans to sell its 15% royalty rights on potential U.S.
net sales of vorasidenib to Royalty Pharma RPRX.O for a $905
mln upfront payment upon U.S. FDA approval of drug
** RPRX buys royalties of future drugs from academic labs
and biotechs, which use the cash to fund research
** AGIO will retain a 3% royalty on annual U.S. net sales
greater than $1 billion for the treatment
** Will also receive a $200 mln milestone payment from
Servier
** Stock up 41.5% YTD as of last close
(Reporting by Christy Santhosh and Puyaan Singh)
((Christy.Santhosh@thomsonreuters.com))