“We are excited to advance GFH009 to the next phase of clinical development, which we believe holds great promise for patients who continue to suffer with advanced and difficult to treat AML,” said Angelos Stergiou, MD, ScD h.c., President and Chief Executive Officer of SELLAS. “As far as we know, GFH009 is the only CDK9 inhibitor in development that, as a single agent, has shown such unique and very encouraging clinical data which is the reason our hematology experts see high promise in this Phase 2a study. Treatment of the first patient in this study represents successful completion of one of several near-term potential value enhancing milestones.”