** Shares of drug developer Repare Therapeutics RPTX.O rise 18% to $1.68 in extended trading
** RPTX licensed its cancer drug, lunresertib, to Swiss-based private firm Debiopharm for worldwide development and commercialization
** RPTX will receive $10 million upfront and could earn up to $257 million in milestone payments and royalties
** Debiopharm plans to combine lunresertib with its own drug Debio 0123 for cancer treatment
** Stock up 9.2% YTD