Randomized double-blind evaluation of dronabinol for the prevention of chemotherapy-induced nausea.

9061 Background: Although great progress has been made in the control of chemotherapy-induced vomiting (CIV), prevention of chemotherapy-induced nausea (CIN) has been less successful. Preliminary data suggests that some families of lesser used antiemetic agents, such as the cannabinoids, may have greater efficacy against nausea than against vomiting. Methods: Adult solid tumor patients (pts) receiving cyclophosphamide ≤ 1500 mg/m2 (C) and/or doxorubicin ≥ 40 mg/m2 (A) were eligible. Pts could have received prior mildly emetogenic chemotherapy (EC). Pts were not eligible who were receiving other moderately or highly EC, were receiving cranial, abdominal or pelvic radiotherapy, had CIV/CIN with previous chemotherapy, had other causes for nausea/vomiting besides chemotherapy, or were scheduled to receive other antiemetics. Pts with habitual cannabinoid use were not eligible. All pts received palonosetron 0.25 mg (PALO) and dexamethasone 10 mg (DXM) IV before chemotherapy. Patients were randomized double-blin...