A Study of Imlunestrant, Investigator's Choice of Endocrine Therapy, and Imlunestrant Plus Abemaciclib in Participants With ER+, HER2- Advanced Breast Cancer

Koo Foundation Sun Yat-Sen Cancer Center, Taipei

Taichung Veterans General Hospital, Taichung

National Cheng Kung University Hospital, Tainan City

Institut Jules Bordet, Brussels

Universitaetsklinikum Allgemeines Krankenhaus Wien, Vienna

UZ Brussel, Brussels

Instituto Argentino de Diagnóstico y Tratamiento (IADT), Buenos Aires

Fundación Cenit Para La Investigación En Neurociencias, CABA

St Vincent's Hospital, Darlinghurst

Imelda General Hospital, Bonheiden

UZ Leuven, Leuven

Box Hill Hospital, Box Hill

Maroondah Hospital, Melbourne

Princess Alexandra Hospital, Woolloongabba

Sanatorio Norte, Santiago del Estero

CHU UCL Namur/Site Sainte Elisabeth, Namur

Uniklinikum Salzburg, Salzburg

Ashford Cancer Centre Research, Kurralta Park

Instituto San Marcos, San Juan

Medizinische Universität Graz, Graz

Clinica Viedma, Viedma

AZ Groeninge Campus Kennedylaan, Kortrijk

UZ Gent, Ghent

National Taiwan University Hospital, Taipei

Hospital San Pedro de Alcántara, Cáceres

Columbia University Medical Center, New York

Fakultni nemocnice Kralovske Vinohrady, Prague

Fakultni Thomayerova nemocnice, Prague

"General Oncology Hospital of Kifissia Agioi Anargiroi", Nea Kifissia

Ospedale San Martino, Genoa

Ajou University Hospital, Suwon

Hospital Universitario San Cecilio, Granada

Dicle Üniversitesi, Diyarbakır

Gachon University Gil Medical Center, Namdong-gu

Trakya University, Edirne

Universitaetsklinikum Schleswig-Holstein Campus Kiel, Kiel

CHU Besançon, Besançon

Hospital Universitario Arnau de Vilanova de Lleida, Lleida

Centro de Investigación Clínica de Alta Especialidad, Torreón

University of North Carolina Medical Center, Chapel Hill

Hospital Universitario Ramón y Cajal, Madrid

Hospital Clinico San Carlos, Madrid

Gynäkologisch-Onkologische Praxis am Pelikanplatz, Hanover

Soon Chun Hyang University Cheonan Hospital, Cheonan-si

Unidad de Investigación en Salud, Chihuahua City

University of Florida College of Medicine, Gainesville

Mid Florida Hematology and Oncology Center, Orange City

Cro-Irccs, Aviano

Mersin University, Mersin

Florida Cancer Specialists, St. Petersburg

Centre de Cancérologie du Grand Montpellier, Montpellier

Medipol University Medical Faculty, Stanbul

Florida Cancer Specialists, Sarasota

Acıbadem Maslak Hastanesi, Istanbul

Clermont Oncology Center, Clermont

TC Saglik Bakanligi Goztepe Prof. Dr. Suleyman Yalcin Sehir Hastanesi, Istanbul

Ege Universitesi Hastanesi, Izmir

Istituto Oncologico Veneto IRCCS, Padua

Florida Cancer Specialists, Nashville

The Mark H Zangmeister Cancer Center, Nashville

Hospital Universitario de Canarias, San Cristóbal de La Laguna

Jackson Oncology Associates, PLLC, Jackson

The University of Louisville, James Graham Brown Cancer Center, Louisville

Hospital Universitario Virgen Macarena, Seville

Hospital Universitario Virgen Del Rocio, Seville

Evangelisches Krankenhaus Bethesda Mönchengladbach, Mönchengladbach

University General Hospital of Larissa, Larissa

Polyclinique De Blois, La Chaussée-Saint-Victor

Kyungpook National University Chilgok Hospital, Daegu

Yeungnam Univeristy Medical Center, Daegu

"Municipal Enterprise Volyn Regional Medical Oncology Centre of the Volyn Regional Council", Lutsk

Mercy Health - St. Vincent Medical Center, Toledo

İnönü Üniversitesi Turgut Özal Tıp Merkezi, Malatya

Aultman Hospital, Canton

Kliniken Essen-Mitte, Evangelische Huyssens-Stiftung, Essen

Hospital Clinico de Valencia, Valencia

Hospital Quirónsalud Valencia, Valencia

IU Health Ball Memorial Hospital, Inc., Muncie

Dong-A University Hospital, Busan

Communal Enterprise 'Kryvyi Rih Oncology Dispensary' of the Dnipropetrovsk Regional Council, Kryvyi Rih

Azienda Ospedaliera Universitaria Careggi, Florence

Institut de Cancérologie de Lorraine Alexis Vautrin, Vandœuvre-lès-Nancy

Avera Cancer Institute Sioux Falls, Sioux Falls

NorthShore University HealthSystem - Evanston Hospital, Evanston

Agaplesion Markus Krankenhaus, Frankfurt am Main

University of Chicago Medical Center, Chicago

"CNPE Regional Center of Oncology", Kharkiv

Centre Hospitalier de la Côte Basque, Bayonne

Private Practice - Dr. Joaquin Reinoso, Monterrey

Filios Alta Medicina, Monterrey

Municipal non-profit enterprise'Odesa Regional Clinical Hospital'of Odesa Regional Council, Odesa

Centro Medico Zambrano Hellion, San Pedro Garza García

Institut de cancérologie Strasbourg Europe (ICANS), Strasbourg

Oaxaca Site Management Organization, Oaxaca City

Klinikum Ludwigsburg, Ludwigsburg

Clinique Victor Hugo Le Mans, Le Mans

Unidad Médica Onco-hematológica, Puebla City

Chi Mei Hospital - Liouying Branch, Tainan City

USO - Texas Oncology - Allen, Allen

Texas Oncology - Denison, The Woodlands

Texas Oncology - Carrollton, Lewisville

Texas Oncology - Dallas Presbyterian Hospital, Dallas

Institut Curie, Paris

Texas Oncology - Paris, The Woodlands

Willamette Valley Cancer Institute & Research Ctr., Houston

Blue Ridge Cancer Care, The Woodlands

Broome Oncology, The Woodlands

Minnesota Oncology/Hematology PA, The Woodlands

Texas Oncology - Carrollton, The Woodlands

Texas Oncology - McKinney, The Woodlands

Texas Oncology - Medical City Dallas, The Woodlands

Texas Oncology - Methodist Charlton Cancer Center, The Woodlands

Texas Oncology - San Antonio Medical Center, The Woodlands

Texas Oncology - The Woodlands, The Woodlands

Texas Oncology - Willowbrook, The Woodlands

Texas Oncology Fort Worth, The Woodlands

Texas Oncology-Baylor Charles A. Sammons Cancer Center, The Woodlands

USO-Rocky Mountain Cancer Center, The Woodlands

Texas Oncology - Austin Central, The Woodlands

University of Naples Federico II, Naples

Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli

Klinikum der Ludwig-Maximilians-Universitaet Muenchen, München

Banner MD Anderson Cancer Center at McKee Medical Center, Loveland

Utah Cancer Specialists, Salt Lake City

Ironwood Cancer & Research Centers, Chandler

Banner MD Anderson Cancer Center, Gilbert

Onkologiezentrum Donauwörth, Donauwörth

Uzhgorod Central City Clinical Hospital, Uzhhorod

Universitaetsklinikum Erlangen, Erlangen

Sharp Memorial Hospital, San Diego

Hôpital René Huguenin, Saint-Cloud

Marin Cancer Care, Greenbrae

University of California Davis (UC Davis) Comprehensive Cancer Center, Sacramento

Kaiser Permanente Moanalua Medical Center, Honolulu

Beijing Hospital, Beijing

Fifth Medical Center of PLA General Hospital, Beijing

Harbin Medical University Cancer Hospital, Harbin

N.N.Petrov Research Institute of Oncology, Saint Petersburg

Jiangsu Province Hospital, Nanjing

Afflilated Hospital of Bengbu Medical College, Bengbu

Kaluga Regional Clinical Oncology Center, Kaluga

Jinan Central Hospital, Jinan

Tianjin Medical University Cancer Institute and Hospital, Tianjin

Sir Run Run Shaw Hospital, Hangzhou

Zhejiang Cancer Hospital, Hangzhou

Hwa Mei Hospital University of Chinese Academy of Sciences, Ningbo

Ningbo Medical Center, Ningbo

The Third Hospital of Nanchang, Nanchang

Fujian Provincial Cancer Hospital, Fuzhou

HCG Cancer Centre, Mumbai

Volgograd Regional Clinical Cancer Clinic No.1, Volgograd

Xiangya Hospital Central South University, Changsha

Deenanath Mangeshkar Hospital & Research Centre, Pune

Lifepoint Multispeciality Hospital, Pune

The First People's Hospital of Changde City, Changde

Hunan Cancer Hospital, Changsha

HCG Manavata Cancer Centre, Nashik

Tongji Hospital Tongji Medical,Science & Technology, Wuhan

Renmin Hospital of Wuhan University, Wuhan

Hubei Cancer Hospital, Wuhan

Government Medical College And Hospital - Nagpur, Nagpur

Rashtrasant Tukdoji Regional Cancer Hospital, Nagpur

The First Affiliated Hospital of Henan University of Science &Technology, Luoyang

Nanyang Second General Hospital, Nanyang

Yashoda Hospitals, Hyderabad

Sun Yat-Sen University Cancer Centre, Guangzhou

Shenzhen Second People's Hospital, Shenzhen

The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai

Affiliated Hospital of Guangdong Medical University, Zhanjiang

Zhongshan Peoples Hospital, Zhongshan

Medstar Speciality Hospital, Bangalore

Sichuan Cancer hospital, Chengdu

The Second People's Hospital of Neijiang, Neijiang

Regional Cancer Centre - Thiruvananthapuram, Thiruvananthapuram

The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an

Kanagawa cancer center, Yokohama

Care Access - Clifton, Clifton

Memorial Sloan Kettering - Bergen, Montvale

The University of Vermont Medical Center Inc., Burlington

Instituto de Investigaciones Clínicas Mar del Plata, Mar del Plata

CIPREC, Buenos Aires

Centro Medico Privado CEMAIC, Capital

AZ Nikolaas, Sint-Niklaas

Hospital de Cancer de Londrina, Londrina

Faculdade de Medicina do ABC, Santo André

Icesp - Instituto Do Câncer Do Estado de São Paulo, São Paulo

Clínica de Pesquisa e Centro de Estudos em Ginecologia Oncológica e Mamária LTDA, São Paulo

Núcleo de Pesquisa Clínica da Rede São Camilo, São Paulo

Jiangmen Center Hospital, Jiangmen

The Second Hospital of Jilin University, Changchun

Acibadem Altunizade Hospital, Üsküdar / Stanbul

Nemocnice Horovice, Hořovice

Nemocnice Na Bulovce, Prague

Oblastni nemocnice Pribram, Příbram

Agios Savvas Regional Cancer Hospital, Athens

Alexandra Hospital, Athens

University General Hospital of Heraklion, Heraklion

Euromedica General Clinic of Thessaloniki, Thessaloniki

Papageorgiou General Hospital of Thessaloniki, Thessaloniki

European Interbalkan Medical Center, Thessaloniki

Fondazione Policlinico Universitario Agostino Gemelli, Rome

Nagoya University Hospital, Nagoya

Chiba cancer center, Chiba

National Hospital Organization Shikoku Cancer Center, Matsuyama

Kurume General Hospital, Kurume

Gunma Prefectural Cancer Center, Otashi

National Hospital Organization Hokkaido Cancer Center, Sapporo

Hyogo Cancer Center, Akashi

Shinko Hospital, Kobe

Tsuchiura Kyodo General Hospital, Tsuchiura

Tsukuba University Hospital, Tsukuba

St. Marianna University School of Medicine Hospital, Kawasaki

Nagano Municipal Hospital, Tomitake

Niigata Cancer Center Hospital, Niigata

Showa University Hospital, Shinagawa

National Hospital Organization Kyushu Cancer Center, Fukuoka

Hiroshima City Hospital, Hiroshima

Sagara Hospital, Kagoshima

Kumamoto Shinto General Hospital, Kumamoto

Osaka International Cancer Institute, Osaka

Shizuoka General Hospital, Shizuoka

Juntendo University Hospital, Tokyo

COI Centro Oncologico Internacional S.A.P.I. de C.V., Álvaro Obregón

Grupo Medico Camino Sc, Mexico City

Maastricht UMC+, Maastricht

Medische Centrum Leeuwarden, Leeuwarden

Haga Ziekenhuis locatie Leyweg, The Hague

Seoul National University Hospital, Seoul

Kangbuk Samsung Hospital, Seoul

Severance Hospital, Yonsei University Health System, Seoul

Asan Medical Center, Seoul

Gangnam Severance Hospital, Seoul

Samsung Medical Center, Seoul

Hospital Universitari Vall d'Hebron, Barcelona

Hospital Universitari Dexeusa, Barcelona

Hospital de la Santa Creu i Sant Pau, Barcelona

Baskent University Dr. Turgut Noyan Research and Training Center, Adana

University of Health Sciences,Gulhane School of Medicine, Ankara

Abdurrahman Yurtaslan Ankara Oncology, education and Research Hospital, Ankara

Hacettepe Universitesi, Ankara

Memorial Ankara Hastanesi, Ankara

Ankara Bilkent Şehir Hastanesi, Ankara

Akdeniz Universitesi Hastanesi, Antalya