C-well, I have lost a kitty to kidney failure and I have kidney failure myself. Cut down on his protein, either by feeding KD or any other kind of low-protein diet, make sure he does not miss his meds, and watch out for signs that the end may be near - such as vomiting or pronounced lethargy. You are right that the focus is on prolonging his life, because the only cure for chronic kidney failure is a transplant, and I don't think they're doing those on kitties - although some people are putting their pets on dialysis. However, with good care and a positive environment, you can have him many more years to come.