A phase 1b study of glasdegib + azacitidine in patients with untreated acute myeloid leukemia and higher-risk myelodysplastic syndromes by Sekeres, MA, Schuster, M, Joris, M, Krauter, J, Maertens, J, Breems, D, Gyan, E, Kovacsovics, T, Verma, A, Vyas, P, Wang, ES, Ching, K, O'Brien, T, Gallo Stampino, C, Ma, WW, Kudla, A, Chan, G, Zeidan, AM