. >>> a closer look at the possible second spouses, karen pence and doug emhoff to be the country's first ever second gentleman. >>> tory johnsonr world stopped and when they found a way to face it. for some, this is where their keytruda story begins. keytruda- a breakthrough immunotherapy that may treat certain cancers. one of those cancers is advanced nonsquamous, non-small cell lung cancer where keytruda is approved to be used with certain chemotherapies as your first treatment if you do not have an abnormal "egfr" or "alk" gene. keytruda helps your immune system fight cancer, but can also cause your immune system to attack healthy parts of your body. this can happen during or after treatment and may be severe and lead to death. see your doctor right away if you have new or worse cough, chest pain, shortness of breath, diarrhea, severe stomach pain or tenderness, nausea or vomiting, rapid heartbeat, increased hunger or thirst, constipation, dizziness or fainting, changes in urine or eyesight, muscle pain or weakness, joint pain, confusion or memory problems, fever, rash, itching, or flushing. these are not all the possible s