You will receive avelumab by vein over 60 minutes on Days 1 and 14 of each cycle during Cycles 1-4, or until the disease is in complete remission (has completely disappeared), whichever comes first. When the disease is in complete remission, you will receive avelumab by vein only on Day 1 of each cycle. Your health will be checked for up to 2 hours after the infusion.