Fig. 4From: Agnostic evaluation of ipilimumab and nivolumab association: a metanalysisPFS Analysis. Figure shows the PFS analysis on selected trials. Pooled Hazard Ratio favored the combination of nivolumab plus ipilimumab with respect to nivolumab alone (HR = 0.807; 95% CI: 0.719–0.907; P < 0.0001). Fixed effect model—Heterogeneity not significant (P = 0.85)Back to article page