All Patients must have at least one measurable target extracranial lesion according to RECIST v1.1. In addition patients with asymptomatic CNS metastases (including patients asymptomatic by means of stable or decreasing doses of steroids within the last 2 weeks prior to study entry) will be eligible. Patients who have leptomeningeal disease (LM) or carcinomatous meningitis (CM) are eligible.