Copanlisib Hydrochloride and Nivolumab in Treating Patients With Recurrent or Refractory Diffuse Large B-cell Lymphoma or Primary Mediastinal Large B-cell Lymphoma

Wake Forest University Health Sciences, Winston-Salem

University of Alabama at Birmingham Cancer Center, Birmingham

University of Kentucky/Markey Cancer Center, Lexington

University of Iowa/Holden Comprehensive Cancer Center, Iowa City

Mayo Clinic in Rochester, Rochester

University Health Truman Medical Center, Kansas City

The University of Kansas Cancer Center - Olathe, Olathe

University of Kansas Cancer Center, Kansas City

University of Kansas Hospital-Westwood Cancer Center, Westwood

University of Kansas Health System Saint Francis Campus, Topeka

Ascension Via Christi - Pittsburg, Pittsburg

Salina Regional Health Center, Salina

HaysMed, Hays

Huntsman Cancer Institute/University of Utah, Salt Lake City

Dartmouth Hitchcock Medical Center/Dartmouth Cancer Center, Lebanon