216MO A randomized phase II trial of metronomic oral vinorelbine plus cyclophosphamide and capecitabine (VEX) vs weekly paclitaxel (P) as first- or second-line treatment in patients (pts) with ER+/HER2- metastatic breast cancer (MBC): The METEORA-II trial (IBCSG 54-16)

METEORA-II was designed to test the concept of the metronomic VEX regimen administered for as long as the pt has the possibility of deriving a benefit from it, in comparison with weekly P, for pts with ER+/HER2- MBC candidates for chemotherapy (CT). Time to treatment failure (TTF) was chosen as primary endpoint, as CT may be stopped due to lack of tolerability, lack of efficacy or pt preference.