Check these out. They are survival curves from a successful clinical trial of treatments for metastatic squamous non–small-cell lung cancer. These beautifully-presented below graphs show both triumph and tragedy. The new therapy definitely extended survival. Yet the difference in median survival is only three months. A long way to go. And I’m so happy my friend quit smoking.
PS–RhodesKen is correct that the probability of two-year survival is notably better with the new therapy. That is very good news.