During the last decade there has been an explosion of knowledge about what cancer is and how it can be treated. As a result, scientists have developed new drugs known as targeted molecular therapies designed to zero in on the mechanisms that supply blood to tumors and promote their growth and division, which spares healthy tissue, causes fewer side effects, and improves quality of life…Both studies involved patients with non-small cell lung cancer, the most common lung cancers, accounting for about 80 percent of all lung cancers.