Figure 1

PFS in four group of patients. For corresponding lines see the key in figure 1. Group A: +GCN/1st line; Group B: -GCN/1st line; Group C: +GCN/more lines; Group D: - GCN/more lines; (+: increased; -: non-increased; GCN: EGFR Gene Copy Number) P value adj: Groups A vs D: p < 0.0001; Groups D vs C: p = 0.03; Groups D vs B: p = 0.06; Groups A vs B: ns; Groups A vs C: ns; Groups B vs C: ns.