Reduced/No Dexamethasone With Netupitant/Palonosetron and Olanzapine for Chemotherapy‑Induced Nausea/Vomiting in Highly Emetogenic Chemotherapy: Phase III Noninferiority Trial
This is a practical, easy-to-adopt result. In 644 patients on highly emetogenic chemotherapy, all getting NEPA plus olanzapine, a single 6 mg day-1 dex dose or no dex at all was noninferior to the standard 4-day course (complete response 72%, 72%, and 70%), with clearly less insomnia, hiccups, anxiety, and reflux. The day-1-only arm is the sweet spot, since going fully dex-free cost some early nausea control over days 1 to 3 before catching up. Caveats: it was open-label, only 6% were on concurrent immunotherapy, and the high-dose cisplatin subgroup was small, but for most of our HEC patients, olanzapine plus one day of dex looks like plenty.