showed a trendp -value = 0.1
Patients with positive PD-L1 expression showed a trend for worse survival, with a median overall survival of 11 months vs. 19 months for patients with negative PD-L1 expression ( p -value = 0.1) and a mean PFS of 6 months vs. 11 months for patients with negative PD-L1 expression ( p -value = 0.1).