Pathology: la/mBC - HR-positive - 1st line (L1);
| la/mBC - HR-positive - 1st line (L1) | ||||
| CALGB 40302, 2014 | EGF30008 (all population), 2009 | EGF30008 (HER2-positive), 2009 | ||
| lapatinib plus letrozole | 2 | T1 | T1 | |
| lapatinib plus fulvestrant | 1 | T1 | ||
| fulvestrant | 0 | T0 | ||
| letrozole | 0 | T0 | T0 | |