Nivolumab With or Without Ipilimumab in Treating Patients With Refractory Metastatic Anal Canal Cancer
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
M.D. Anderson Cancer Center
City of Hope Medical Center
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
Mayo Clinic
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
Mayo Clinic
NRG Oncology
NRG Oncology
M.D. Anderson Cancer Center
Duke University
Mayo Clinic
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
Ohio State University Comprehensive Cancer Center
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
City of Hope Medical Center
National Cancer Institute (NCI)
National Cancer Institute (NCI)
M.D. Anderson Cancer Center
SWOG Cancer Research Network
City of Hope Medical Center
Dana-Farber Cancer Institute
Emory University
National Cancer Institute (NCI)