Hi all. I just got back from NY with my sister where we met an oncologist whose specialty is ovarian cancer. He is very familiar with clear cell which my sister has. She has experienced another recurrence. She has already had 3 major surgeries, 3 courses of chemo and one round of radiation. Now it is in her pelvic bone with several spots in her abdomen. The doctor recommended a clinical trial that shows promise. It is an immunotherapy trial. Has anyone has amy experience with using an immunotherapy agent called Nivolumab? If so, please share your experience. Thanks.