Study to Investigate Lifileucel Regimen Plus Pembrolizumab Compared With Pembrolizumab Alone in Participants With Untreated Advanced Melanoma.

University of Alabama at Birmingham: The Kirklin Clinic, Birmingham, Alabama, United States

City of Hope, Duarte, California, United States

USC Norris Comprehensive Cancer Center, Los Angeles, California, United States

California Pacific Medical Center, San Francisco, California, United States

University of Colorado Cancer Center, Aurora, Colorado, United States

Orlando Health Cancer Institute, Orlando, Florida, United States

University of Illinois Hospital & Health Sciences System, Chicago, Illinois, United States

University of Kansas, Kansas City, Kansas, United States

University of Louisville - James Graham Brown Cancer Center, Louisville, Kentucky, United States

National Cancer Institute, Bethesda, Maryland, United States

Barbara Ann Karmanos Cancer Hospital dba Karmanos Cancer Center, Detroit, Michigan, United States

Henry Ford Health, Detroit, Michigan, United States

Dartmouth-Hitchcock Medical Center (DHMC) - Norris Cotton Cancer Center, Lebanon, New Hampshire, United States

MD Anderson Cancer Center at Cooper, Camden, New Jersey, United States

Oncology Hematology Care, Cincinnati, Ohio, United States

Ohio State University, Columbus, Ohio, United States

St. Luke's Cancer Center - Anderson, Easton, Pennsylvania, United States

Allegheny Health Network, Pittsburgh, Pennsylvania, United States

Baptist Cancer Center, Bartlett, Tennessee, United States

SCRI Oncology Partners, Nashville, Tennessee, United States

Virginia Commonwealth University, Richmond, Virginia, United States

Swedish Cancer Institute, Edmonds, Washington, United States

Greenslopes Private Hospital, Greenslopes, Queensland, Australia

Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia

Fiona Stanley Hospital, Murdoch, Western Australia, Australia

Flinders Medical Centre, Bedford Park, Australia

Westmead Hospital, Westmead, Australia

Universitair Ziekenhuis Brussel - Oncologisch Centrum, Jette, Belgium

Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada

Princess Margaret Cancer Centre, Toronto, Canada

Institut Paoli Calmettes, Marseille, France

Centre Hospitalier Universitaire de Nantes (CHU de Nantes) - Hotel-Dieu, Nantes, France

Hopital Saint Louis, Paris, France

Charité - Universitätsmedizin Berlin, Berlin, Germany, Germany

Universitätsklinikum Carl Gustav Carus, Dresden, Germany

Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany

Universitätsklinikum Schleswig-Holstein - Campus Lübeck, Lübeck, Germany

Klinikum Rechts der Isar der Technischen Universität München, Munich, Germany

Hadassah Medical Center, Jerusalem, Israel

Sheba Medical Center, Ramat Gan, Israel

Tel Aviv Sourasky Medical Center, Tel Aviv, Israel

Istituto Romagnolo per lo Studio dei Tumori, Meldola, Forlì-Cesena, Italy

Centro di Riferimento Oncologico IRCCS, Aviano, Friuli Venezia Giulia, Italy

Istituto Nazionale Per Lo Studio E La Cura Dei Tumori Fondazione Giovanni Pascale, Naples, Napoli, Italy

Azienda Ospedaliero Universitaria Pisana, Pisa, Tuscany, Italy

Istituto Europeo Di Oncologia, Milan, Italy

Azienda Ospedaliera Universitaria Senese, Siena, Italy

Nederlands Kanker Instituut, Amsterdam, Netherlands

Bundang Medical Center - CHA University, Seongnam-si, Gyeonggi-do, South Korea

Samsung Medical Center, Seoul, South Korea, South Korea

Korea University Anam Hospital, Seoul, South Korea

Seoul National University Hospital, Seoul, South Korea

Severance Hospital, Yonsei University Health System, Seoul, South Korea

Hospital Universitario Marques de Valdecilla, Santander, Cantabria, Spain

Hospital Regional Universitario de Malaga - Hospital General, Málaga, Málaga, Spain

Instituto Oncologico Rosell, Barcelona, Spain

Hospital Universitari Vall dHebron, Barcelona, Spain

Hospital Clinic de Barcelona, Barcelona, Spain

ICO l'Hospitalet - Hospital Duran i Reynals, Barcelona, Spain

Hospital General Universitario Gregorio Maranon, Madrid, Spain

Hospital 12 de Octubre, Madrid, Spain

Hospital Universitario Madrid Sanchinarro - CIOCC, Madrid, Spain

Hospital Universitario Quirónsalud Madrid, Madrid, Spain

Hospital Universitario Ramon y Cajal, Madrid, Spain

Clínica Universitaria de Navarra, Pamplona, Spain

Hospital Universitario Virgen Macarena, Seville, Spain

Consorcio Hospital General Universitario de Valencia, Valencia, Spain

Sahlgrenska Universitetssjukhuset, Gothenburg, Västra Götaland County, Sweden

Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland

Queen Elizabeth Hospital Birmingham, Birmingham, England, United Kingdom

Freeman Hospital, Newcastle upon Tyne, England, United Kingdom

Royal Marsden Hospital, Chelsea, London, United Kingdom

Beaston West of Scotland Canter Centre, Glasgow, United Kingdom

Guy's Hospital, London, United Kingdom

Sarah Cannon Research Institute UK, London, United Kingdom