I have been taking Keytruda for 18 months since I opted out of surgery for my kidney cancer that was diagnosed in April 2023. I have had 16 infusions with two more scheduled. My last CT scan in July showed that the malignant lesion on the one kidney is no longer visible and there is no spread of cancer. Also, Natera blood test which detects lesion DNA circulating in plasma done last month was negative with no lesion DNA in blood detected . My next infusion is scheduled forend of this month. I take no other medication other than Keytruda. I have had severe skin rash and sores from the Keytruda and my energy level is low. I plan on stopping Keytruda after 18th infusion. I am an 83 year old male.