Primary:
1) Determine the magnitude of aprepitant's inhibition of cyclophosphamide, vincristine, and prednisone metabolism using pharmacokinetic (PK) sampling.
Secondary/Exploratory:
1) Assess the efficacy of aprepitant in the prevention of nausea and vomiting in patients receiving the moderately-highly emetogenic multi-day chemotherapy regimen of cyclophosphamide, doxorubicin, vincristine, prednisone (CHOP)/Rituximab (R)-CHOP.
2) Compare treatment groups for other clinical endpoints such as degree of myelosuppression, neutropenic fever, hyperglycemia, and neuropathy. |