Windtree Therapeutics Inc. is out-licensing China rights for phase III-ready heart failure candidate istaroxime to Lee’s Pharmaceutical Ltd. for $138 million, plus royalties. Lee’s, of Hong Kong, plans to begin a phase III study for istaroxime in acute heart failure in greater China, while Windtree, of Warrington, Pa., will conduct a global trial in cardiogenic shock, a form of sudden heart failure. Windtree reported positive phase II data in April 2022 that tested istaroxime in cardiogenic shock, which happens when the heart cannot pump enough blood and oxygen to vital organs.