Carboplatin, Etoposide, and Atezolizumab With or Without Trilaciclib (G1T28), a CDK4/6 Inhibitor, in Extensive-Stage SCLC

"Multiprofile Hospital for Active Treatment Serdika, Sofia", Sofia

"Multiprofile Hospital for Active Treatment Serdika", Sofia

Complex Oncology Center - Burgas, Burgas

Northern Westchester Hospital, Mount Kisco

East Tallinn Central Hospital Ltd., Clinic of Internal Medicine, Center for Oncology, Tallinn

CHU Caen De La Côte De Nacre, Caen

Hospital Teresa Herrera, A Coruña

H. Donostia, Hospital Donostia- Servicio de Oncología, San Sebastián

Virginia Cancer Specialists, Arlington

Fort Belvoir Community Hospital, Fort Belvoir

Blue Ridge Cancer Care, Blacksburg

Hospital Universitario Ramón y Cajal, Madrid

Hospital Clínico, San Carlos

Hospital 12 de Octubre, Madrid

Hospital Universitario Puerta de Hierro Majadahonda, Majadahonda

Gibbs Cancer Center, Spartanburg

Piedmont Cancer Institute, Atlanta

Northside Hospital - Georgia Cancer Specialists, Atlanta

Hospital Universitario Ntra. Sra. de Valme, Seville

Hospital Arnau de Vilanova, Valencia

Horizon Oncology Center, Lafayette

Dnipropetrovsk City Multispecialty Clinical Hospital #4, Dnipro

Chernivtsi Regional Clinical Oncology Center, Chernivtsi

Trinity Health - Trinity CancerCare Center, Minot

Centre Oscar Lambret, Lille

Joliet Oncology-Hematology Associates, Joliet

St. Louis Cancer Care, LLP, North County, Bridgeton

Ochsner Clinic Foundation, New Orleans

Oklahoma University - Peggy and Charles Stephenson Cancer Center, Oklahoma City

Millennium Oncology, Houston

Valley Cancer Associates, Harlingen

Lviv State Regional Treatment and Diagnostics Oncology Center, Lviv

Beverly Hills Cancer Center, Beverly Hills

UCLA Medical Center - Santa Monica Hematology And Oncology, Santa Monica

Singing River Health System, Whittier

Loma Linda University, Loma Linda

St. Jude Heritage Healthcare, Fullerton

Redwood Regional Medical Group (RRMG) - Fountain Grove, Santa Rosa

The Alvin J. Siteman Cancer Center - Center for Advanced Med, St Louis

Summit Medical Group, P.A., Morristown

Daugavpils Regional Hospital, Department of Oncology, Daugavpils

Pauls Stradiņš Clinical University Hospital, Oncology Clinic, Riga

Hospital Universitario Son Espases, Palma

H.U. Quirón Dexeus, Hospital Universitario, Barcelona

Hospital Clinic de Barcelona- Servicio de Oncología Médica, Barcelona