(roger) my doctor said i could start on keytruda so i did. with each scan things just got better. (avo) in a clinical study, keytruda offered patients a longer life than chemotherapy. and it could be your first treatment. keytruda is for adults with non-small cell lung cancer that has spread... ...who test positive for pd-l1 and whose tumors do not have an abnormal "egfr" or "alk" gene. it's the immunotherapy with the most fda-approved uses for advanced lung cancer. keytruda can cause your immune system to attack normal organs and tissues in your body and affect how they work. this can happen anytime during or after treatment and may be severe and lead to death. see your doctor right away if you experience new or worsening cough, chest pain, shortness of breath, diarrhea, severe stomach pain or tenderness, nausea or vomiting, rapid heartbeat, constipation, changes in urine, changes in eyesight, muscle pain or weakness, joint pain, confusion or memory problems, fever, rash, itching or flushing, as this may keep these problems from becoming more serious. these are not all the possible side effects of keytruda. tell your doctor about all your medical conditions