A Study to Evaluate the Efficacy and Safety of Remdesivir Plus Tocilizumab Compared With Remdesivir Plus Placebo in Hospitalized Participants With Severe COVID-19 Pneumonia

Wyckoff Heights Medical Center, Staten Island

Lehigh Valley Hospital, Allentown

Hospital General Universitario de Guadalajara, Guadalajara

Thomas Jefferson University, Philadelphia

Medstar Georgetown University Hospital, Washington D.C.

University of Maryland, Baltimore

West Virginia University Hospital, Morgantown

Hospital Universitario Principe de Asturias; Medicina Interna - Servicio de Enfermedades Infecciosas, Alcalá de Henares

Hospital Universitario Fundacion Jimenez Diaz., Madrid

Novant Health Clinical Research, Charlotte

Hospital Universitario HM Torrelodones, Torrelodones

Medical University of South Carolina, Charleston

Larkin Community Hospital Palm Springs Campus (Hialeah), Hialeah

University of Miami Miller School of Medicine; Clinical Reseach Building, Miami

Larkin Community Hospital, South Miami

Holy Cross Hospital Inc, Fort Lauderdale

OhioHealth Research Institute, Columbus

Henry Ford Medical Center, Novi

Advocate Christ Medical Center, Oak Lawn

Ochsner Clinic Foundation, New Orleans

Baylor Scott & White Medical Center - Irving, Irving

Baylor Scott & White Hospital - Plano, Plano

Baylor University Medical Center, Dallas

The Liver Institute at Methodist Dallas, Arlington

Baylor Scott & White Health, Temple

Baylor St. Luke's Medical Center, Houston

Ben Taub General Hospital - HCHD, Houston

Houston Methodist Hospital, Houston

Baylor Scott and White Medical Center - College Station, College Station

St Luke's Health System; Rheumatology Research, Boise

Intermountain LDS Hospital, Salt Lake City

Valleywise Health Medical Center, Phoenix

San Juan Oncology Associates, Farmington

Providence St Johns Health Center, Santa Monica

eStudySite - Chula Vista - PPDS, Chula Vista

Hoag Hospital Irvine, Irvine

Providence Saint Vincent's Medical Center, Portland

The Providence Regional Medical Center Everett, Everett

O.M. Filatov City Clinical Hospital #15; Department of Surgery, Moskva

City Clinical Hospital # 52, Moscow

Medsi Clinic, Moscow

City Pokrovskaya Hospital, Saint Petersburg

Yale University School of Medicine; HIV Clinical Trials Program, New Haven

Boston Medical Center, Boston

Baystate Medical Center, Springfield

St. Michael'S Medical Center, Newark

Santa Casa de Misericordia de Belo Horizonte, Belo Horizonte

Hospital Nossa Senhora das Graças; Setor de Pesquisa em Neurologia, Curitiba

Instituto de Pesquisa Clinica Evandro Chagas - IPEC FIOCRUZ, Rio de Janeiro

CEMEC - Centro Multidisciplinar de Estudos Clínicos, São Bernardo do Campo

Hospital de Base de Sao Jose do Rio Preto, São José do Rio Preto

Instituto de Infectologia Emilio Ribas, São Paulo

Instituto do Coração - HCFMUSP, São Paulo

Hospital Universitario de Bellvitge, L'Hospitalet de Llobregat