Netupitant and Palonosetron Hydrochloride in Preventing Chronic Nausea and Vomiting in Patients With Cancer

PRIMARY OBJECTIVES: I. To estimate the efficacy (i.e. change in nausea numeric rating scale \[NRS\] from baseline between day 5-15) of fixed dose netupitant and palonosetron hydrochloride (palonosetron) (NEPA) for chronic nausea in cancer patients. SECONDARY OBJECTIVES: I. To assess the secondary outcomes (e.g. proportion of patients who achieved their personalized nausea goal, antiemetic use, nausea episodes duration/frequency) for NEPA versus (vs.) placebo. II. To assess the adverse effects associated with NEPA and placebo. OUTLINE: Patients are randomized to 1 of 2 groups. GROUP I: Patients receive netupitant orally (PO) and palonosetron hydrochloride PO on days 1, 6, and 11 in the absence of disease progression or unacceptable toxicity. GROUP II: Patients receive placebo PO on days 1, 6, and 11.