Are dMMR and MSI-H both markers that will soon replace or work in conjunction with PD-L1 when determining immunotherapy for patients with metastatic NSCLC? Accurate testing and treatment selection is critical in identifying patients who will benefit from these therapies. Dr. Federico Cappuzzo, Dr. Solange Peters, and Professor Yi-Long Wu discuss emerging data from the recent WCLC, ESMO, and ASCO virtual conferences and offer their international and regional perspectives on the evolving use of immunotherapies in advanced NSCLC.