** Shares of drug developer BioAge Labs crater 67.6% to $6.52 in extended trading
** Co discontinues mid-stage trial of its experimental obesity drug after high levels of certain liver enzymes observed in some patients
** BioAge's experimental drug, azelaprag, mimics activity of the exerkine apelin, a peptide released in response to exercise due to muscle contraction
** Co was studying azelaprag as a monotherapy and in combination with Eli Lilly's tirzepatide
** BioAge has stopped dosing all patients and plans to further analyze data from people who have been enrolled
** As of last close, stock down ~10% since its market debut in September
(Reporting by Juveria Tabassum in Bengaluru)
((Juveria.Tabassum@thomsonreuters.com;))