CAMBRIDGE, Mass., Dec. 14, 2018 /PRNewswire/ -- Leap Therapeutics, Inc. (NASDAQ:LPTX) today presented clinical data from its ongoing Phase I/II study of TRX518 in combination with gemcitabine, KeytrudaÒ (pembrolizumab), or OpdivoÒ (nivolumab) in patients with advanced solid tumors at the...