A PHASE 2 STUDY TO ASSESS THE SAFETY AND EFFICACY OF UMBRALISIB IN PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA (CLL) WHO ARE INTOLERANT TO PRIOR BTK OR PI3K DELTA INHIBITOR THERAPY. (12th June 2019) - Mato, A.R.; Schuster, S.J.; Lamanna, N.; Pagel, J.M.; Flinn, I.W.; Barrientos, J.; Reeves, J.A.; Cheson, B.D.; Barr, P.M.; Kambhampati, S.; Lansigan, F.; Pu, J.J.; et al.