

Thinking with summing PFSs………………….. OS impact?
EGFR-TKI 1st-2nd generation
T790 +
EGFR-M+ NSCLC
EGFR-TKI 3rd generation
Progression
T790 -
EGFR-TKI
3rd generation
Progression
Chemotherapy
Resistance ?
PFS 1 + PFS 2 + PFS 3 > PFS (?) ; Impact on OS ?
PFS1
PFS3
PFS
>50%
PFS2
Local therapies, TKI maintenance
Symptomatic PD
Local therapies, TKI maintenance?
Chemotherapy
∼
~50%