A Study of BGB-16673 Compared to Investigator's Choice in Participants With Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma Previously Exposed to Both Bruton Tyrosine Kinase (BTK) and B-cell Leukemia/Lymphoma 2 Protein (BCL2) Inhibitors

St Bernards Medical Center, Jonesboro, Arkansas, United States

UCLA Department of Medicine Hematologyoncology, Los Angeles, California, United States

Pih Health Whittier Hospital, Whittier, California, United States

Rocky Mountain Cancer Centers (Williams) Usor, Aurora, Colorado, United States

Florida Oncology and Hematology, Fort Myers, Florida, United States

Baptist Md Anderson Cancer Center, Jacksonville, Florida, United States

Cleveland Clinic Florida, Weston, Florida, United States

Emory University Winship Cancer Institute, Atlanta, Georgia, United States

Northside Cancer Center, Atlanta, Georgia, United States

Our Lady of the Lake Hospital, Baton Rouge, Louisiana, United States

American Oncology Partners of Maryland Pa, Bethesda, Maryland, United States

Oncology Hematology Associates, Springfield, Missouri, United States

Oncology Hematology West, Pc Dba Nebraska Cancer Specialists, Omaha, Nebraska, United States

Memorial Sloan Kettering Cancer Center Mskcc, New York, New York, United States

OPTUM, Westbury, New York, United States

University Hospitals, Cleveland, Ohio, United States

Dayton Physician Network, Dayton, Ohio, United States

Oncology Associates of Oregon Willamette Valley Cancer Center, Eugene, Oregon, United States

West Penn Hospital, Pittsburgh, Pennsylvania, United States

Cancer Care Associates of York, York, Pennsylvania, United States

Texas Oncology Tyler, Tyler, Texas, United States

Hospital Aleman, CABA, Argentina

CEMIC, Caba, Argentina

FUNDALEU, Caba, Argentina

Hospital Italiano de Buenos Aires, Ciudad Autonoma Buenos Aires, Argentina

Instituto Alexander Fleming (Iaf), Ciudad Autonoma Buenos Aires, Argentina

Cice 9 de Julio Sanatorio 9 de Julio, San Miguel de Tucumán, Argentina

Concord Repatriation General Hospital, Concord, New South Wales, Australia

Gosford Hospital, Gosford, New South Wales, Australia

Port Macquarie Base Hospital, Port Macquarie, New South Wales, Australia

Prince of Wales Hospital, Randwick, New South Wales, Australia

Toowoomba Hospital, Toowoomba, Queensland, Australia

Flinders Medical Centre, Bedford PK, South Australia, Australia

The Alfred Hospital, Melbourne, Victoria, Australia

Perth Blood Institute, West Perth, Western Australia, Australia

CETUS, Belo Horizonte, Brazil

Hospital Sirio Libanes Brasilia, Brasília, Brazil

Hospital Erasto Gaertner, Curitiba, Brazil

Centro de Ensino E Pesquisa Em Oncologia de Santa Catarina (Cepen), Florianópolis, Brazil

Instituto Joinvilense de Hematologia E Oncologia, Joinville, Brazil

Complexo Hospitalar de Niteroi, Niterói, Brazil

Centro Gaucho Integrado de Oncologia Hospital Mae de Deus, Porto Alegre, Brazil

Hospital Santa Joana Recife, Recife, Brazil

Hospital Sao Lucas Dasa Oncologia, Rio de Janeiro, Brazil

Oncoclinicas Rio de Janeiro Sa, Rio de Janeiro, Brazil

Hospital Sao Rafael (Rede Dor), Salvador, Brazil

Instituto Dor de Pesquisa E Ensino Sao Paulo, São Paulo, Brazil

Instituto Brasileiro de Controle Do Cancer, São Paulo, Brazil

Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein, São Paulo, Brazil

Hospital Santa Rita de Cassia Afecc, Vitória, Brazil

London Health Sciences Centre, London, Ontario, Canada

The Ottawa Hospital Cancer Centre, Ottawa, Ontario, Canada

Centre Integre de Sante Et de Services Sociaux de La Monteregie Centre, Greenfield Park, Quebec, Canada

Jewish General Hospital, Montreal, Quebec, Canada

Unite de Recherche Clinique Du Cisss Des Laurentides, SaintJerome, Quebec, Canada

Fakultni Nemocnice Brno, Brno, Czechia

Fakultni Nemocnice Hradec Kralove, Hradec Králové, Czechia

Fakultni Nemocnice Ostrava, Ostrava, Czechia

Vseobecna Fakultni Nemocnice V Praze, Prague, Czechia

Universitatsklinikum Augsburg, Augsburg, Germany

Praxis Am Volkspark, Berlin, Germany

Klinikum Chemnitz Ggmbh, Chemnitz, Germany

Universitatsklinikum Essen (Aor), Essen, Germany

Centrum Fur Haematologie Und Onkologie Bethanien, Frankfurt am Main, Germany

Universitatsklinikum Freiburg I Br Klinik Fur Innere Medizin I, Freiburg im Breisgau, Germany

Universitatsklinikum Hamburg Eppendorf, Hamburg, Germany

Universitatsklinikum Heidelberg, Heidelberg, Germany

Saarland University Medical Center, Homburg, Germany

Invo Institut Fur Versorgungsforschung in Der Onkologie, Koblenz, Germany

Universitaetsklinikum Leipzig Aor, Leipzig, Germany

Universitatsklinikum Munster Medizinische Klinik A, Münster, Germany

Irccs Istituto Tumori Giovanni Paolo Ii, Bari, Italy

Aou Careggi, Servizio Sanitario Toscana, Florence, Italy

Fondazione Irccs Ca Granda Ospedale Maggiore Policlinico, Milan, Italy

Ospedale San Raffaele, Milan, Italy

Azienda Ospedaliera Universitaria Federico Ii, Naples, Italy

Aou Maggiore Della Carita, Novara, Italy

Irccs Policlinico San Matteo, Universita Degli Studi Di Pavi, Pavia, Italy

Ospedale Santa Maria Della Misericordia, Perugia, Italy

Fondazione Policlinico Universitario Agostino Gemelli, Roma, Italy

Aichi Cancer Center Hospital Clinical Oncology, Nagoya, Aichi-ken, Japan

Nho Shikoku Cancer Center, Matsuyama, Ehime, Japan

Hiroshima Red Cross Hospital and Atomic Bomb Survivors Hospital, Hiroshima, Hiroshima, Japan

Aiiku Hospital, Sapporo, Hokkaido, Japan

Hyogo Prefectural Amagasaki General Medical Center, AmagasakiCity, Hyōgo, Japan

Kagoshima University Hospital, Kagoshima, Kagoshima-ken, Japan

University Hospital, Kyoto Prefectural Univ of Medicine, KyotoShi, Kyoto, Japan

Tohoku University Hospital, Sendai, Miyagi, Japan

Niigata University Medical and Dental Hospital, Niigata, Niigata, Japan

Kurashiki Central Hospital, Kurashikishi, Okayama-ken, Japan

Kansai Medical University Hospital, Hirakata, Osaka, Japan

Kindai University Hospital, Sakai, Osaka, Japan

Saitama Medical Center, Kawagoeshi, Saitama, Japan

Tokyo Metropolitan Komagome Hospital, Bunkyoku, Tokyo, Japan

Ntt Medical Center Tokyo, Shinagawaku, Tokyo, Japan

Kumamoto University Hospital, Kumamoto, Japan

National Hospital Organization Okayama Medical Center, Okayama, Japan

Osaka Metropolitan University Hospital, Osaka, Japan

Amsterdam Umc Vu Mc, Amsterdam, Netherlands

Szpital Specjalist W Brzozowie,Podkarpacki Osrodek Onkologiczny, Brzozów, Poland

Pratia Onkologia Katowice, Katowice, Poland

Pratia McM Krakow, Krakow, Poland

Wojewodzkie Wielospecjalistyczne Centrum Onkologii I Traumatologii Im M Kopernika W Lodzi, Lodz, Poland

Uniwersytecki Szpital Kliniczny Nr 4 W Lublinie, Lublin, Poland

Uniwersytecki Szpital Kliniczny Im Jana Mikulicza Radeckiego We Wroclawiu, Wroclaw, Poland

Dong A University Hospital, Seogu, Busan Gwang'yeogsi, South Korea

Kyungpook National University Hospital, Junggu, Daegu Gwang'yeogsi, South Korea

National Cancer Center (Korea), IlsandongGu GoyangSi, Gyeonggi-do, South Korea

Chonnam National University Hwasun Hospital, HwasunGun, Jeollanam-do, South Korea

Samsung Medical Center, GangnamGu, Seoul Teugbyeolsi, South Korea

The Catholic University of Korea, Seoul St Marys Hospital, SeochoGu, Seoul Teugbyeolsi, South Korea

Seoul National University Hospital, Seoul, Seoul Teugbyeolsi, South Korea

Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital, Ankara, Turkey (Türkiye)

Gazi University, Ankara, Turkey (Türkiye)

Dokuz Eylul University, Balçova, Turkey (Türkiye)

Antalya Memorial Hospital, Dokuma, Turkey (Türkiye)

Sakarya Training and Research Hospital, Sakarya, Turkey (Türkiye)

Aberdeen Royal Infirmary, Aberdeen, United Kingdom

Birmingham Heartlands Hospital, Birmingham, United Kingdom

The Royal Bournemouth and Christchurch Hospitals Nhs Foundation, Bournemouth, United Kingdom

University College Hospital, London, United Kingdom

Royal Marsden Hospital, London, United Kingdom

Southampton General Hospital, Southampton, United Kingdom