RE: KEYTRUDA *Failed* on OS......https://investors.merck.com/news/press-release-details/2020/Mercks-KEYTRUDA-pembrolizumab-in-Combination-with-Chemotherapy-Significantly-Improved-Progression-Free-Survival-Compared-to-Chemotherapy-Alone-as-First-Line-Treatment-for-Extensive-Stage-Small-Cell-Lung-Cancer/default.aspx For comparison one need details to properly put this outcome in contest of any future competitions.