How do you schedule IV/PO Dexamethasone if giving immunotherapy concurrently with chemotherapy in patients with NSCLC?

We follow the methods listed in the clinical trial publications. For instance, KEYNOTE-189 followed standard steroid pre-medications for pemetrexed, and KEYNOTE-407 did the same for paclitaxel. Since the monoclonal antibodies tend to have long half lives and steroid premeds are given for such a shor...