Lixte Biotechnology's LB-100 to be Evaluated by the National Cancer Institute in a Clinical Study of LB-100's Ability to Enter Recurrent Glioblastoma Multiforme Brain Tumors EAST SETAUKET, NY, May 15, 2019 (GLOBE NEWSWIRE) -- Lixte Biotechnology Holdings, Inc. (OTCQB: LIXT) announced the opening of a pharmacologic study of the ability of its lead clinical compound,...