Pharmacokinetic Evaluation of Subcutaneous Versus Intravenous Palonosetron in Cancer Treated With Chemotherapy

Randomized Crossover Pharmacokinetic Evaluation of Subcutaneous (SC) Versus Intravenous Palonosetron in Cancer Patients Treated With Platinum Based Chemotherapy

This trial compares the pharmacokinetics of palonosetron administered subcutaneously and intravenously.

5-Hydroxitryptamine3 antagonists are one of the mainstays of antiemetic treatment and they are administered either intravenously or orally. Nevertheless sometimes neither administration route is feasible, such as in patients unable to admit oral intake managed in an outpatient setting. Our objective is to evaluate the bioavailability of subcutaneous palonosetron.Patients receiving platinum-based chemotherapy will be randomized to receive palonosetron 3 mg either subcutaneously or intravenously in a crossover manner during two cycles. Blood and urine samples will be collected after each cycle. Pharmacokinetics of subcutaneous and IV palonosetron will be prospectively compared.

Inclusion Criteria:

• Cancer patients receiving platinum-based chemotherapy adequate bone marrow, hepatic and renal function

Exclusion Criteria:

• Pregnancy
• Serious concomitant diseases, in the invesgator´s criteria