FDA approves Opdivo monothearpy for third-line SCLC—the first immunotherapy approved for SCLC in any setting: https://finance.yahoo.com/news/u-food-drug-administration-approves-105900664.html This is an accelerated approval based on an ORR of 12%—and the duration of response—in a single-arm cohort of the CHECKMATE-032 study. SCLC represents 10-15% of all metastatic lung cancers.