** Shares of drug developer Silexion Therapeutics SLXN.O rise ~125% to $1.30 premarket
** SLXN says preclinical trials of its cancer treatment, SIL-204, shows significant reduction in tumor growth in pancreatic cancer models
** SIL-204 reduced tumor growth by 50% and showed complete necrosis in 50% of tumors in some trials
** Says SIL-204 was effective in inhibiting key cancer-causing KRAS mutations and maintained effective drug levels in the body for over 56 days
** SLXN fell 88.4% in 2024, since its Nasdaq debut on Aug. 16, 2024
(Reporting by Kamal Choudhury in Bengaluru)
((Kamal.Choudhury@thomsonreuters.com;))