** Shares of biotech firm Nuvation Bio NUVB.N rise 5% to $5.59 premarket
** Co says it has acquired exclusive Japan rights to safusidenib from Daiichi Sankyo, giving it global control of the experimental drug
** Safusidenib targets IDH1‑mutant glioma, a form of brain cancer where tumors grow from abnormal brain cells - NUVB
** Co says the deal lets it expand its late‑stage global study into Japan and own all past and future clinical data
** Earlier studies showed delayed disease progression and tumor shrinkage, co says
** Says it plans to present longer‑term data from a Japanese study at an upcoming medical meeting
** Co expects results from its main global trial of about 300 patients in 2029 - NUVB
** As of last close, stock down ~52% YTD
(Reporting by Sahil Pandey in Bengaluru)
((Sahil.Pandey@thomsonreuters.com))