- Group 1: Patients receive cisplatin IV over 1 hour on day 2 of courses 1 and 2 and on day 1 of all subsequent courses; etoposide IV over 30 minutes on days 1-3; and oral sorafenib tosylate once or twice daily on days 1-21. Treatment repeats every 21 days in the absence of unacceptable toxicity or disease progression.