A Phase II Single Arm Clinical Trial Assessing the Efficacy and Safety of BIntrafusp Alfa (M7824) in Previously Treated Advanced Malignant Pleural MESothelioma (BIMES)

Bintrafusp alfa (M7824) is a bifunctional fusion protein composed of the extracellular domain of the transforming growth factor β (TGF-β) receptor II (a TGF-β "trap") fused to a human immunoglobulin G1 antibody blocking programmed death-ligand 1 (PD-L1). Day 1 of week 1 of treatment will start within 1-5 days from enrollment. Cycles will be administered every 2 weeks (±3 days) until progression or other reason to discontinue. If a pseudoprogression is suspected patient is allowed to continue treatment until loss of clinical benefit as judged by principal investigator and after the permission from the trial chair is granted. On Day 1 of each cycle (QW2), all eligible patients will receive: Bintrafusp alfa (M7824): 1200mg, IV infusion over 60 minutes Current experience revealed that IRRs to bintrafusp alfa occur seldomly and are generally mild to moderate in severity. Therefore, administration of a premedication is generally not required.