Nivolumab With or Without Ipilimumab in Treating Patients With Refractory Metastatic Anal Canal Cancer
National Cancer Institute (NCI)
National Cancer Institute (NCI)
University of Pittsburgh
National Cancer Institute (NCI)
M.D. Anderson Cancer Center
National Cancer Institute (NCI)
Providence Health & Services
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
Memorial Sloan Kettering Cancer Center
Duke University
Brown University
University of Texas Southwestern Medical Center
M.D. Anderson Cancer Center
The Netherlands Cancer Institute
H. Lee Moffitt Cancer Center and Research Institute
NYU Langone Health
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
Georgetown University
Olivia Newton-John Cancer Research Institute
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Memorial Sloan Kettering Cancer Center
Dana-Farber Cancer Institute
Dana-Farber Cancer Institute
Dana-Farber Cancer Institute
Dana-Farber Cancer Institute
Dana-Farber Cancer Institute
Dana-Farber Cancer Institute
Dana-Farber Cancer Institute
Massachusetts General Hospital
Dana-Farber Cancer Institute
Melanoma Institute Australia
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
National Cancer Institute (NCI)
National Cancer Institute (NCI)
M.D. Anderson Cancer Center
Washington University School of Medicine
Abramson Cancer Center at Penn Medicine
Memorial Sloan Kettering Cancer Center
The Netherlands Cancer Institute
Spanish Oncology Genito-Urinary Group
Memorial Sloan Kettering Cancer Center
Memorial Sloan Kettering Cancer Center
Ontario Clinical Oncology Group (OCOG)
European Organisation for Research and Treatment of Cancer - EORTC
GERCOR - Multidisciplinary Oncology Cooperative Group