Malignant Pleural Disease Treated With Autologous T Cells Genetically Engineered to Target the Cancer-Cell Surface Antigen Mesothelin

Administration through the pleural catheter- On day 0 patients will be treated with genetically modified T cells. Thirty to 60 minutes before T cell infusion, patients will be given 650 mg of acetaminophen orally and 25- 50 mg of diphenhydramine orally or intravenously, to prevent infusion-related reactions. The genetically modified T cells will be infused for at least 15 minutes and no more than 2 hours through the indwelling pleural catheter depending on the volume of the T cells. A physician will be available during the infusion. Please note, during formulation of iCasp9M28z T cells, under or over estimation of CAR modified T Cells may occur. Patient may receive an altered fractionation of the total dose or up to 35% over or under total cell dose with approval of the PI. Patients who do not have enough cells to match the current dose cohort will be treated in the cohort in which they have cells available

Patients will receive cyclophosphamide intravenously (at 1.5 g/m\^2)

Pembrolizumab will be given as 200 mg flat dose infusion intravenously.