A Randomized Multicenter Phase2 Trial of Neoadjuvant Paclitaxel followed by Fluorouracil,Epirubin,and Cyclophosphamide(FEC)with or without Estrogen Deprivation by LH-RH agonist or Aromatase Inhibitor in Breast Cancer larger than 2 cm. - A Randomized Multicenter Phase2 Trial of Neoadjuvant Paclitaxel followed by Fluorouracil,Epirubin,and Cyclophosphamide(FEC)with or without Estrogen Deprivation by LH-RH agonist or Aromatase Inhibitor in Breast Cancer larger than 2cm. (NACED Randomized Multicenter Phase2 Trial)

The primary endpoint was the pathological complete response (pCR) rate after neoadjuvant therapy. Twenty-eight patients were randomized. There were no significant differences in pCR rate between the concurrent group (12.5%;2/16) and the chemotherapy alone group (8.3%;1/12). Tumor size after therapy was significantly reduced in the concurrent therapy group (p=0.035), but not in the chemotherapy-alone group (p=0.622). Neoadjuvant chemotherapy with concurrent hormone therapy provided no significant improvement in pCR rate in ER-positive breast cancers. These preliminary results should be followed up by further studies.