... cancer. Her PDL-1's are at 80% without any abnormal EFGR or ALK genes. I have read that this exact type of cancer is what Keytruda excels at addressing. Has anyone else had this diagnosis? I realize everyone reacts differently, but I am curious as to how soon after treatment you may have seen tumors shrink. Or, are they still growing? This cancer is growing "very fast", according to medical professionals and I am hopeful Keytruda will help minimize the growth. Thanks in advance for any advice/shared experiences.