NCT04648826 2021-12-17Aerosolized Azacytidine as Epigenetic Priming for Bintrafusp Alfa-Mediated Immune Checkpoint Blockade in Patients With Unresectable Pulmonary Metastases From Sarcomas, Germ Cell Tumors, or Epithelial MalignanciesNational Institutes of Health Clinical Center (CC)Phase 1/2 Withdrawn