 In this study patients will receive the medicine Xofigo which is a radioactive drug that is FDA approved to treat prostate cancer that has spread to the bones. Xofigo has not previously been tested to treat lung cancer that has spread to the bones. Your doctors are studying the effects, good and bad, of Xofigo when used to treat lung cancer that has spread to the bones. Your doctors will also be evaluating changes in health related quality of life using the EORC QL-C20 and QOL-BM22 questionnaires. They will also evaluate the impact of treatment on the Alkaline phosphate levels by way of lab draws in patients and measure the progression free survival and overall survival of patients with stable or responding disease after the front line chemotherapy treated with Xofigo. 