Phase 3 Trial Shows Olanzapine Significantly Reduces Chemotherapy-Induced Nausea and Vomiting in Breast Cancer Patients
- A phase 3 trial demonstrated that adding 5 mg olanzapine to standard triplet antiemetic therapy significantly improved complete response rates for chemotherapy-induced nausea and vomiting in breast cancer patients receiving anthracycline plus cyclophosphamide chemotherapy.
- The olanzapine group achieved a 58.1% complete response rate compared to 35.5% with placebo, representing a 22.7% difference with statistical significance (P <.0001).
- The treatment showed acceptable safety profile with the most common severe adverse events being anorexia and constipation, while providing substantial advancement in managing chemotherapy-induced nausea and vomiting.