A Phase II Study Evaluating the Efficacy and Safety of Inavolisib Plus Ribociclib Plus Fulvestrant Versus Placebo Plus Ribociclib Plus Fulvestrant in Participants With Advanced Breast Cancer

Avera Cancer Institute - Marshall, Marshall, Minnesota, United States

Avera Cancer Institute - Aberdeen, Aberdeen, South Dakota, United States

Avera Cancer Institute - Mitchell, Mitchell, South Dakota, United States

Avera Cancer Institute - Pierre, SD, Pierre, South Dakota, United States

Avera Cancer Institute, Sioux Falls, South Dakota, United States

AMG Oncology and Hematology Avera Cancer Institute - Yankton, Yankton, South Dakota, United States

Inst. Alexander Fleming, Buenos Aires, Argentina

Centro Oncologico Korben, Caba, Argentina

Centro Médico Fleischer, Capital Federal, Argentina

Sanatorio de la Mujer, Rosario, Argentina

Hospital Santa Rita de Cassia Vitoria, Vitória, Espírito Santo, Brazil

Hospital Brasilia, Brasília, Federal District, Brazil

ICTR Curitiba, Curitiba, Paraná, Brazil

Clinica de Pesquisa e Centro de Estudos em Oncologia Ginecologica e Mamaria Ltda, São Paulo, São Paulo, Brazil

CIUSSS du Saguenay Lac-Saint-Jean, Chicoutimi Hospital, Chicoutimi, Quebec, Canada

McGill University, Montreal, Quebec, Canada

Centre Oscar Lambret, Lille, France

Centre Leon Berard, Lyon, France

Institut Paoli Calmettes, Marseille, France

Institut Régional du Cancer de Montpellier, Montpellier, France

Institut Universitaire du Cancer - Oncopole Toulouse (IUCT-O), Toulouse, France

Uniklinik RWTH Aachen Klinik für Gynäkologie und Geburtsmedizin, Aachen, Germany

Universitätsklinik Tübingen, Tübingen, Germany

Istituto Nazionale Tumori Irccs Fondazione g. PASCALE, Naples, Campania, Italy

IRST Istituto Scientifico Romagnolo Per Lo Studio E Cura Dei Tumori, Sede Meldola, Meldola, Emilia-Romagna, Italy

Università Campus Bio-Medico di Roma, Rome, Lazio, Italy

Asst Papa Giovanni XXIII, Bergamo, Lombardy, Italy

Ospedale San Raffaele, Milan, Lombardy, Italy

Irccs Istituto Nazionale Dei Tumori (Int), Milan, Lombardy, Italy

Instituto Nacional De Cancerologia, Distrito Federal, Mexico CITY (federal District), Mexico

Centro de Investigacion Clinica de Oaxaca, Oaxaca City, Oaxaca, Mexico

Antiguo Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Mexico

Instytut "Centrum Zdrowia Matki Polki", ?ód?, Poland

Bialostockie Centrum Onkologii, Bialystok, Poland

COZL Oddzial Onkologii Klinicznej z pododdzialem Chemioterapii Dziennej, Lublin, Poland

Dolno?l?skie Centrum Onkologii, Wroc?aw, Poland

Soon Chun Hyang University Cheonan Hospital, Dongnam-gu, Cheonan-si, South Korea

Gachon University Gil Medical Center, Namdong-Gu, South Korea

Seoul National University Bundang Hospital, Seongnam-si, South Korea

Seoul National University Hospital, Seoul, South Korea

ICO L'Hospitalet, L'Hospitalet de Llobregat, Barcelona, Spain

Hospital Clinic Barcelona, Barcelona, Spain

Hospital Universitario Clínico San Cecilio, Granada, Spain

Hospital Ramon y Cajal, Madrid, Spain

Hospital Universitario 12 de Octubre, Madrid, Spain

Hospital Clinico Universitario de Valencia, Valencia, Spain

Leicester Royal Infirmary, Leicester, United Kingdom

Royal Free Hospital, London, United Kingdom

Christie Hospital Nhs Trust, Manchester, United Kingdom