The first scan 6 months after starting showed some possible shrinkage in the kidney tumor. By one year the lymph nodes had shrunken to normal size and kidney tumor appeared to be gone. No further biopsies have been done. I have been having CT scans with contrast. I have been off that treatment for over a year now and scans have remained clear. Going this week for 6 month recheck so fingers are crossed. I also use an immune therapy using human serum proteins from the Bahamas as well as supplements like Beta Glucan and medicinal mushrooms that support immune function. I have been doing this for years, even before the Libtayo treatment.