A Study to Investigate Tislelizumab Administered as Subcutaneous Injection Versus Intravenous Infusion Plus Chemotherapy in Patients With Unresectable or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma

Ironwood Cancer and Research Centers Chandler Ii

Chandler, Arizona, United States

Cancer and Blood Specialty Clinic

Los Alamitos, California, United States

UC Health Cancer Care and Hematology Clinic Memorial Hospital Central

Colorado Springs, Colorado, United States

Bioresearch Partners Holding Hialeah Hospital

Hialeah, Florida, United States

Orlando Health Cancer Institute Downtown Orlando

Orlando, Florida, United States

Northwestern University

Chicago, Illinois, United States

Hope and Healing Cancer Services

Hinsdale, Illinois, United States

University of Kansas Medical Center Research Institute

Kansas City, Kansas, United States

New England Cancer Specialists

Westbrook, Maine, United States

St Louis Cancer Care, Llp

Bridgeton, Missouri, United States

Nebraska Hematology Oncology

Lincoln, Nebraska, United States

Comprehensive Cancer Centers of Nevada

Las Vegas, Nevada, United States

Hunterdon Hematology Oncology

Flemington, New Jersey, United States

Summit Medical Group

Florham Park, New Jersey, United States

Oregon Oncology Specialists

Salem, Oregon, United States

Vanderbilt University

Nashville, Tennessee, United States

Md Anderson Cancer Center

Houston, Texas, United States

Scott and White Memorial Hospital

Temple, Texas, United States

Northwest Medical Specialties

Tacoma, Washington, United States

Hospital Aleman

CABA, Argentina

Instituto Alexander Fleming (Iaf)

Ciudad Autonoma Buenos Aires, Argentina

Fundacion Cori Para La Investigacion Y Prevencion Del Cancer

La Rioja, Argentina

Krankenhaus Der Barmherzigen Schwestern Linz

Linz, Austria

Medical Univeristy Vienna

Vienna, Austria

Hospital de Amor Barretos

Barretos, Brazil

CECAP

Blumenau, Brazil

Hospital Brasilia

Brasília, Brazil

Hospital Universiario Onofre Lopes

Natal, Brazil

Hospital Sao Lucas Da Pucrs

Porto Alegre, Brazil

IMIP

Recife, Brazil

Inca Instituto Nacional de Cancer

Rio de Janeiro, Brazil

Fundacao Faculdade Regional de Medicina de Sao Jose Do Rio Preto

São José do Rio Preto, Brazil

Icesp Instituto Do Cancer Do Estado de Sao Paulo Octavio Frias de Oliveira

São Paulo, Brazil

Instituto Dor de Pesquisa E Ensino Sao Paulo

São Paulo, Brazil

Hospital Santa Rita de Cassia Afecc

Vitória, Brazil

The Second Hospital of Anhui Medical University

Hefei, Anhui, China

Cancer Hospital Chinese Academy of Medical Sciences

Beijing, Beijing Municipality, China

The First Affiliated Hospital of Xiamen University

Xiamen, Fujian, China

Anyang Tumor Hospital

Anyang, Henan, China

Henan Cancer Hospital

Zhengzhou, Henan, China

The First Affiliated Hospital of Zhengzhou University

Zhengzhou, Henan, China

Nanjing Drum Tower Hospital,the Affiliated Hospital of Nanjing University Medical School

Nanjing, Jiangsu, China

Ganzhou Peoples Hospital Ganzhou Hospital Affiliated to Nanchang University

Ganzhou, Jiangxi, China

The First Hospital of China Medical University

Shenyang, Liaoning, China

Shandong Cancer Hospital

Jinan, Shandong, China

Affiliated Hospital of Jining Medical University

Jining, Shandong, China

Changzhi Peoples Hospital

Changzhi, Shanxi, China

Shanxi Provincial Cancer Hospital

Taiyuan, Shanxi, China

Tianjin Medical University Cancer Institute and Hospital

Tianjin, Tianjin Municipality, China

The First Affiliated Hospital of Wenzhou Medical University

Wenzhou, Zhejiang, China

Masarykuv Onkologicky Ustav

Brno, Czechia

Fakultni Nemocnice Hradec Kralove

Hradec Králové, Czechia

Fakultni Nemocnice Olomouc

Olomouc, Czechia

Vseobecna Fakultni Nemocnice V Praze

Prague, Czechia

Institut Sainte Catherine

Avignon, France

Chru de Brest Hopital Cavale Blanche

Brest, France

Hopital Claude Huriez Chu Lille

Lille, France

Irccs Azienda Ospedaliera Metropolitana (Aom)

Genova, Italy

Fondazione Irccs Istituto Nazionale Dei Tumori

Milan, Italy

Aou Pisana, Stabilimento Di Santa Chiara

Pisa, Italy

Istituto Clinico Humanitas

Rozzano, Italy

Matsuyama Red Cross Hospital

Matsuyama, Ehime, Japan

Japan Community Health Care Organization Kyushu Hospital

Kitakyushu, Fukuoka, Japan

Nho Hokkaido Cancer Center

Sapporo, Hokkaido, Japan

Osaka Rosai Hospital

SakaiShi, Osaka, Japan

Osaka Medical and Pharmaceutical University Hospital

Takatsukishi, Osaka, Japan

Saitama Cancer Center

Kitaadachigun, Saitama, Japan

Hamamatsu University School of Medicine, University Hospital

Hamamatsushi, Shizuoka, Japan

Tochigi Cancer Center

Utsunomiya, Tochigi, Japan

Institute of Science Tokyo Hospital

Bunkyoku, Tokyo, Japan

Tokyo Metropolitan Bokutoh Hospital

SumidaKu, Tokyo, Japan

Health Pharma Professional Research Sa de Cv

Mexico City, Mexico

Medical Care and Research Sa de Cv

Mérida, Mexico

Centro de Investigacion Clinica de Oaxaca

Oaxaca City, Mexico

Pratia McM Krakow

Krakow, Poland

Opolskie Centrum Onkologii

Opole, Poland

Narodowy Instytut Onkologii Im Marii Sklodowskiej Curie W Warszawie

Warsaw, Poland

Pan American Oncology Trials, Llc

Rio Piedras, Puerto Rico

Seoul National University Bundang Hospital

Seongnam-si, Gyeonggi-do, South Korea

Kyungpook National University Chilgok Hospital

BukGu, Gyeongsangbukdo, South Korea

Samsung Medical Center

GangnamGu, Seoul Teugbyeolsi, South Korea

Severance Hospital Yonsei University Health System

SeodaemunGu, Seoul Teugbyeolsi, South Korea

Seoul National University Hospital

Seoul, Seoul Teugbyeolsi, South Korea

Asan Medical Center

SongpaGu, Seoul Teugbyeolsi, South Korea

Hospital Clinic de Barcelona

Barcelona, Spain

Hospital Universitario de Navarra

Pamplona, Spain

Hospital Clinico Universitario de Valencia

Valencia, Spain

Hospital Universitario Miguel Servet

Zaragoza, Spain

Medical Park Seyhan Hospital

Adana, Turkey (Türkiye)

Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital

Ankara, Turkey (Türkiye)

Acibadem Adana Hospital

Kuruköprü, Turkey (Türkiye)

Medical Park Florya Hospital

Sefaköy, Turkey (Türkiye)

Cambridge University Hospitals Nhs Foundation Trust

Cambridge, United Kingdom

Ninewells Hospital and Medical School

Dundee, United Kingdom

Clatterbridge Cancer Centre

Metropolitan Borough of Wirral, United Kingdom