showed a trendp = 0.023
Interestingly, prior trastuzumab exposure did not significantly affect median PFS [12.57 versus 8.05 months, p = 0.541, Figure 5(a) ], yet a longer duration (⩾6.37 months) showed a trend toward improved PFS [12.02 versus 5.32 months, p = 0.023, Figure 5(b) ].