PFS. Total of 36 events (progressions n = 23; deaths from any cause n = 23); 2-year PFS 39.6% (95% CI, 26.6-52.4), median PFS 14.0 months (95% CI, from 6.8 to not reached). The blue solid line represents the PFS probability according to the Kaplan-Meier (KM) method and the red dashed line the 95% confidence interval (95CI).