Nivolumab With or Without Ipilimumab in Treating Patients With Refractory Metastatic Anal Canal Cancer
National Cancer Institute (NCI)
National Cancer Institute (NCI)
M.D. Anderson Cancer Center
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
NRG Oncology
City of Hope Medical Center
National Cancer Institute (NCI)
Academic and Community Cancer Research United
National Cancer Institute (NCI)
M.D. Anderson Cancer Center
Emory University
OHSU Knight Cancer Institute
Stanford University
M.D. Anderson Cancer Center
Jonsson Comprehensive Cancer Center
Northwestern University
National Cancer Institute (NCI)
National Cancer Institute (NCI)