My Brother, Age 62, Has Just Finished Chemo & Radiation

My brother, age 62, has just finished chemo & radiation treatment for stage 3 lung cancer. Need info on Opvido for possible treatment. Will be a 3/4 month wait period to see what effect last regimen had on cancer. Not healthy enough for any open chest work. Chemo shrank it any from his heart enough to allow radiation. Lymph nodes that showed cancer originally now seem clear.