Study of Pembrolizumab (MK-3475) Versus Placebo in Combination With Neoadjuvant Chemotherapy & Adjuvant Endocrine Therapy in the Treatment of Early-Stage Estrogen Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative (ER+/HER2-) Breast Cancer (MK-3475-756/KEYNOTE-756)

Linkou Chang Gung Memorial Hospital ( Site 2402), Taoyuan District

Budapesti Szent Margit Korhaz ( Site 2901), Budapest

Institut Jules Bordet ( Site 0710), Anderlecht

Orszagos Onkologiai Intezet ( Site 2908), Budapest

Budapesti Uzsoki Utcai Kórház-Onkoradiológiai Osztály ( Site 2902), Budapest

Cliniques Universitaires Saint-Luc ( Site 0701), Brussels

Chris OBrien Lifehouse ( Site 2107), Camperdown

Royal North Shore Hospital ( Site 2100), Sydney

Westmead Hospital ( Site 2101), Sydney

UZ Antwerpen - Medical Oncology ( Site 0709), Edegem

Imelda Ziekenhuis Bonheiden ( Site 0703), Bonheiden

Peter MacCallum Cancer Centre ( Site 2102), Melbourne

UZ Leuven ( Site 0702), Leuven

Tauranga Hospital ( Site 2302), Tauranga

Frankston Hospital ( Site 2103), Frankston

Jessa Ziekenhuis Campus Virga Jesse ( Site 0704), Hasselt

Borsod-Abauj-Zemplen Megyei Korhaz es Egyetemi OktatoKorhaz ( Site 2904), Miskolc

CHC MontLegia ( Site 0707), Liège

Debreceni Egyetem Klinikai Kozpont ( Site 2907), Debrecen

Mater Misericordiae Ltd ( Site 2106), South Brisbane

CHU UCL Namur Site de Godinne ( Site 0706), Yvoir

Bacs-Kiskun Varmegyei Oktatokorhaz-Onkoradiologiai Kozpont ( Site 2913), Kecskemét

Capital & Coast District Health Board - Wellington Hospital ( Site 2301), Wellington

Somogy Megyei Kaposi Mor Oktato Korhaz ( Site 2915), Kaposvár

Pecsi Tudomanyegyetem Klinikai Kozpont ( Site 2905), Pécs

Canterbury Regional Cancer & Blood Services ( Site 2303), Christchurch

AZ Groeninge ( Site 0705), Kortrijk

AZ Maria Middelares Gent ( Site 0700), Ghent

Weill Cornell Medical College ( Site 0043), New York

National Cancer Center ( Site 2204), Goyang-si

Hospital Metropolitano - Sede Lindora ( Site 4203), Santa Ana

Koo Foundation Sun Yat-Sen Cancer Center ( Site 2403), Taipei

Centre Francois Baclesse ( Site 0927), Caen

Hospital Teresa Herrera - Chuac ( Site 1358), A Coruña

Geisinger Medical Center ( Site 0052), Danville

Fox Chase Cancer Center ( Site 0078), Philadelphia

Cancer Treatment Centers of America-Eastern Regional Medical Center ( Site 0076), Philadelphia

Maryland Oncology Hematology, P.A. ( Site 8007), Bethesda

Centre Georges Francois Leclerc ( Site 0920), Dijon

Complejo Hospitalario de Jaen ( Site 1364), Jaén

Bon Secours St. Francis Medical Center Oncology Research ( Site 0064), Midlothian

Virginia Oncology Associates ( Site 8001), Norfolk

Hospital General Universitario Gregorio Maranon ( Site 1367), Madrid

Hospital Beata María Ana-oncology ( Site 1370), Madrid

Hospital Clinico San Carlos ( Site 1354), Madrid

Hospital Universitario 12 de Octubre ( Site 1356), Madrid

Hospital Quiron de Madrid ( Site 1351), Pozuelo de Alarcón

Khmelnitskiy Regional Onkology Dispensary ( Site 2704), Khmelnitskiy

Medical University of South Carolina ( Site 0053), Charleston

MVZ Onko Medical GmbH Hannover ( Site 1013), Hanover

Southeastern Regional Medical Center, Inc. ( Site 0075), Newnan

Institut Claudius Regaud IUCT Oncopole ( Site 0903), Toulouse

Baptist MD Anderson Cancer Center ( Site 0014), Jacksonville

Frauenklinik St. Louise ( Site 1014), Paderborn

Centre de Cancerologie du Grand Montpellier ( Site 0925), Montpellier

Southern Cancer Center, PC ( Site 8003), Daphne

Tennessee Oncology, PLLC/The Sarah Cannon Research Institute ( Site 7000), Nashville

James Graham Brown Cancer Center ( Site 0022), Louisville

China Medical University Hospital ( Site 2401), Taichung

Hospital Universitario Virgen del Rocio ( Site 1360), Seville

Kliniken Essen Mitte Gmbh Evang. Huyssens Stiftung ( Site 1006), Essen

Hospital Clinico Universitario de Valencia ( Site 1355), Valencia

Hospital General Arnau de Vilanova de Valencia ( Site 1369), Valencia

Goshen Center for Cancer Care ( Site 0021), Goshen

Henry Ford Health System ( Site 0028), Detroit

MNPE City Clinical Hospital #4 of Dnipro Regional Council ( Site 2702), Dnipro

Rodrigo Botero SAS ( Site 0407), Medellín

MI Kryviy Rih Center of Dnipropetrovsk Regional Council ( Site 2700), Kryviy Rih

MercyOne Waterloo Cancer Center ( Site 0016), Waterloo

Gynaekologisches Zentrum ( Site 1003), Bonn

Mayo Clinic and Medical School (Rochester) ( Site 0029), Rochester

CHR-METZ-THIONVILLE - Hopital de Mercy ( Site 0919), Metz

Centre Oscar Lambret ( Site 0911), Lille

St. Vincent Frontier Cancer Center ( Site 0033), Billings

Orchard Healthcare Research Inc. ( Site 0020), Skokie

Midwestern Regional Medical Center, Inc. ( Site 0077), Zion

The University of Chicago Medical Center ( Site 0080), Chicago

Communal non profit enterprise Regional Clinical Oncology Center ( Site 2721), Kharkiv

Centre Jean Perrin ( Site 0909), Clermont-Ferrand

Sana Klinikum Offenbach GmbH ( Site 1002), Offenbach

MI Odesa Regional Clinical Hospital ( Site 2701), Odesa

MI Odessa Regional Oncological Centre ( Site 2714), Odesa

HELIOS Dr. Horst Schmidt Kliniken Wiesbaden ( Site 1004), Wiesbaden

Caritas Klinikum Saarbruecken St. Theresia ( Site 1009), Saarbrücken

Oncology Hematology West, PC dba Nebraska Cancer Specialists ( Site 0039), Omaha

Medical center of the Limited Liability Company Yulis ( Site 2720), Zaporizhzhia

National Cheng Kung University Hospital ( Site 2400), Tainan City

Clinique Victor Hugo Le Mans ( Site 0906), Le Mans

"Communal nonprofit enterprise Kherson Regional Oncology Dispensary of Kherson Regional Council ( Site 2713)", Antonivka Village

CTCA Southwestern ( Site 0074), Tulsa

Institut Curie ( Site 0900), Paris

Hopital Saint-Louis ( Site 0908), Paris

Hopital Tenon ( Site 0914), Paris

Texas Oncology- Plano East ( Site 8010), Plano

Texas Oncology-Dallas Presbyterian Hospital ( Site 8002), Dallas

Texas Oncology-Baylor Charles A. Sammons Cancer Center ( Site 8009), Dallas

Texas Oncology - Northeast Texas ( Site 8006), Tyler

MI Precarpathian Clinical Oncology Center ( Site 2707), Ivano-Frankivsk

Kaplan Medical Center ( Site 1703), Rehovot

Texas Oncology-Memorial City ( Site 8012), Houston

University of Texas-MD Anderson Cancer Center ( Site 0083), Houston

Texas Oncology-Austin Central ( Site 8004), Austin

University of Colorado, Anschutz Cancer Pavilion ( Site 0008), Aurora

Klinikum der Universitaet Muenchen - Grosshadern ( Site 1000), Munich

Institut Sainte Catherine ( Site 0916), Avignon

Cancer Treatment Centers of America at Western Regional Medical Center ( Site 0001), Goodyear

Arizona Oncology Associates PC- HOPE ( Site 8008), Tucson

Medizinische Management GmbH ( Site 1012), Friedrichshafen

Cedars Sinai Medical Center Samuel Oschin Comp. Cancer Institute ( Site 0079), Los Angeles

Universitaetsklinikum Erlangen ( Site 1001), Erlangen

Institut Curie - Centre Rene Huguenin ( Site 0917), Saint-Cloud

El Camino Hospital Cancer Center ( Site 0004), Mountain View

Stanford Cancer Center ( Site 0072), Palo Alto

Institut Gustave Roussy ( Site 0926), Villejuif

UC Davis Comprehensive Cancer Center ( Site 0073), Sacramento

Northwest Cancer Specialists, P.C. ( Site 8000), Tigard

OHSU Knight Cancer Institute ( Site 0051), Portland

Medical Oncology Associates (Summit Cancer Centers) ( Site 0066), Spokane

Kadlec Clinic Hematology and Oncology ( Site 0070), Kennewick

MVZ Nordhausen gGmbH - Praxis Dr. Grafe ( Site 1005), Nordhausen

Cancer Hospital Chinese Academy of Medical Sciences ( Site 3208), Beijing

National Taiwan University Hospital ( Site 2404), Taipei

Centro de Investigacion Clinica del Country ( Site 0402), Bogotá

Fundacion Universitaria Sanitas ( Site 0403), Bogotá

N.N. Blokhin NMRCO ( Site 1908), Moscow

Central Clinical Hospital with outpatient Clinic ( Site 1907), Moscow

Medical Rehabilitation Center ( Site 1912), Moscow

The First Hospital of Jilin University ( Site 3201), Changchun

Harbin Medical University Cancer Hospital ( Site 3200), Harbin

Arkhangelsk Clinical Oncological Dispensary ( Site 1901), Arkhangelsk

Railway Hospital of OJSC ( Site 1913), Saint Petersburg

Scientific Research Oncology Institute n.a. N.N.Petrov ( Site 1900), Saint Petersburg

Ruijin Hosp,Shanghai Jiao Tong University School of Medicine ( Site 3215), Shanghai

Fudan University Shanghai Cancer Center ( Site 3205), Shanghai

Anhui Provincial Hospital ( Site 3224), Heifei

IMAT S.A.S ( Site 0401), Montería

Tianjin Medical University Cancer Institute & Hospital ( Site 3209), Tianjin

The First Affiliated Hospital of Zhejiang University ( Site 3203), Hangzhou

Zhejiang Provincial People's Hospital ( Site 3225), Hangzhou

Zhejiang Cancer Hospital ( Site 3210), Hangzhou

Fujian Medical University Union Hospital-1 Bingfanglou-Oncology ( Site 3207), Fuzhou Fujian

Ryazan Regional Clinical Oncology Dispensary ( Site 1910), Ryazan

Hunan Cancer Hospital ( Site 3214), Changsha

Republican Clinical Oncology Dispensary of Tatarstan MoH named after professor M.Z. Sigal ( Site 1903), Kazan'

Hubei Cancer Hospital ( Site 3211), Wuhan

Henan Cancer Hospital ( Site 3212), Zhengzhou

Republican Clinical Oncology Dispensary of Republic of Bashkortostan ( Site 1909), Ufa

Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University ( Site 3213), Guangzhou

Tomsk Scientific Research Institute of Oncology ( Site 1905), Tomsk

The First Affiliated Hospital of Xi an Jiaotong University ( Site 3220), Xi’an

Clínica Imbanaco S.A.S ( Site 0406), Santiago de Cali

The Affiliated Cancer Hospital of Xinjiang Medical ( Site 3219), Ürümqi

Holy Family Hospital ( Site 1711), Nazareth

HaEmek Medical Center ( Site 1712), Afula

National Cancer Center Hospital East ( Site 2613), Kashiwa

Rambam Health Care Campus-Oncology Division ( Site 1705), Haifa

Meir Medical Center ( Site 1710), Kfar Saba

Chaim Sheba Medical Center. ( Site 1707), Ramat Gan

Sourasky Medical Center ( Site 1706), Tel Aviv

Assuta Medical Center ( Site 1709), Tel Aviv

Assuta Ashdod Public ( Site 1704), Ashdod

Soroka Medical Center ( Site 1701), Beersheba

Shaare Zedek Medical Center ( Site 1708), Jerusalem

Hadassah Ein Karem - Sharett Institute of Oncology ( Site 1700), Jerusalem

Instituto Nacional de Câncer - INCA-Pesquisa Clinica HC3 ( Site 0200), Rio de Janeiro

Massachusetts General Hospital ( Site 0024), Boston

MGH - North Shore Cancer Center ( Site 0081), Danvers

MGH Newton-Wellesley Hospital's Vernon Cancer Center ( Site 0082), Newton

Holy Name Medical Center ( Site 0041), Teaneck

Hospital Araujo Jorge Associacao de Combate ao Cancer de Goias ( Site 0205), Goiânia

ONCOSITE - Centro de Pesquisa Clinica em Oncologia ( Site 0206), Ijuí

Associacao Hospitalar Moinhos de Vento ( Site 0201), Porto Alegre

Uniao Brasileira de Educacao e Assistencia Hospital Sao Lucas da Pucrs ( Site 0202), Porto Alegre

CEPON - Centro de Pesquisas Oncologicas ( Site 0208), Florianópolis

Centro de Novos Tratamentos Itajai - Clinica de Neoplasias Litoral ( Site 0207), Itajaí

Clinica de Pesquisas e Ctro de Estudos Onc. Ginecol. e Mamaria Ltda ( Site 0204), São Paulo

Núcleo de Pesquisa Clínica da Rede São Camilo ( Site 0210), São Paulo

Instituto do Cancer do Estado de Sao Paulo - ICESP ( Site 0209), São Paulo

Cross Cancer Institute ( Site 0115), Edmonton

BC Cancer-Vancouver Center ( Site 0116), Vancouver

Princess Margaret Cancer Centre ( Site 0112), Toronto

CISSS de la Monteregie-Centre ( Site 0108), Greenfield Park

Hopital Maisonneuve-Rosemont CIUSSS de l Est de L Ile de Montreal ( Site 0111), Montreal

Centre Hospitalier de l Universite de Montreal - CHUM ( Site 0114), Montreal

Jewish General Hospital ( Site 0103), Montreal

CHU de Quebec Universite Laval - Hopital du Saint-Sacrement ( Site 0101), Québec

Centre Hospitalier Regional de Trois-Rivieres ( Site 0106), Trois-Rivières

Fourth Hospital Of Hebei Medical University ( Site 3216), Shijiazhuang

Fundacion Colombiana de Cancerología Clinica Vida ( Site 0405), Medellín

Clinica de la Costa S.A.S. ( Site 0400), Barranquilla

Universitaetsklinikum Carl Gustav Carus ( Site 1008), Dresden

Bon Secours Hospital ( Site 1554), Cork

St. James s Hospital ( Site 1553), Dublin

Rabin Medical Center ( Site 1702), Petah Tikva

Aichi Cancer Center ( Site 2601), Nagoya

National Hospital Organization Hokkaido Cancer Center ( Site 2607), Sapporo

Hyogo Medical University Hospital ( Site 2600), Nishinomiya

Kitasato University Hospital ( Site 2616), Sagamihara

Kumamoto University Hospital ( Site 2602), Kumamoto

Saitama Medical University International Medical Center ( Site 2606), Hidaka

Saitama Prefectural Cancer Center ( Site 2612), Kitaadachi-gun

Shizuoka Cancer Center ( Site 2611), Suntogun

Chiba Cancer Center ( Site 2605), Chiba

Fukushima Medical University Hospital ( Site 2610), Fukushima

Hiroshima City Hiroshima Citizens Hospital ( Site 2603), Hiroshima

National Hospital Organization Osaka National Hospital ( Site 2614), Osaka

Toranomon Hospital ( Site 2608), Tokyo

Cancer Institute Hospital of JFCR ( Site 2604), Tokyo

Showa Medical University Hospital ( Site 2615), Tokyo

Centrum Onkologii im. Prof. Franciszka Lukaszczyka ( Site 1800), Bydgoszcz

Dolnoslaskie Centrum Onkologii. ( Site 1820), Wroclaw

Mazowiecki Szpital Specjalistyczny im. dr Jozefa Psarskiego ( Site 1814), Ostrołęka

Narodowy Instytut Onkologii im. Marii Sklodowskiej-Curie - Panstwowy Instytut Badawczy w Warszawie ( Site 1899), Warsaw

Mazowiecki Szpital Onkologiczny ( Site 1803), Wieliszew

Bialostockie Centrum Onkologii ( Site 1819), Bialystok

Wojewodzkie Centrum Onkologii Copernicus ( Site 1817), Gdansk

Szpitale Pomorskie Sp. z o.o. ( Site 1818), Gdynia

Beskidzkie Centrum Onkologii im. Jana Pawla II ( Site 1810), Bielsko-Biala

Wojewodzki Szpital Specjalistyczny nr 4 w Bytomiu ( Site 1807), Bytom

Narodowy Instytut Onkologii - Oddzial w Gliwicach ( Site 1801), Gliwice

Instytut Centrum Zdrowia Matki Polki ( Site 1821), Lodz

Fundacao Champalimaud ( Site 2500), Lisboa

Unidade Local de Saude de Santa Maria - Hospital de Santa Maria ( Site 2501), Lisbon

Unidade Local de Saude de Santo António - Hospital Santo António ( Site 2503), Porto

Inst. Portugues de Oncologia de Porto Francisco Gentil EPE ( Site 2502), Porto

UPR Comprehensive Cancer Center ( Site 6200), San Juan

Seoul National University Hospital ( Site 2200), Seoul

Severance Hospital Yonsei University Health System ( Site 2201), Seoul

Asan Medical Center ( Site 2202), Seoul

Samsung Medical Center ( Site 2203), Seoul

Instituto Catalan de Oncologia ICO - Hospital Duran i Reynals ( Site 1363), L'Hospitalet de Llobregat

Instituto Oncologico Baselga.Hospital Quiron. ( Site 1352), Barcelona

Hospital Vall D Hebron ( Site 1357), Barcelona

Hospital Clinic I Provincial de Barcelona ( Site 1353), Barcelona

SNPE National Cancer Institute ( Site 2719), Kyiv

Kyiv City Clinical Oncology Centre ( Site 2716), Kyiv

University Hospitals Bristol NHS Foundation Trust ( Site 1503), Bristol

Nottingham University Hospitals NHS Trust ( Site 1504), Nottingham

Colchester General Hospital ( Site 1508), Colchester

Barts Health NHS Trust ( Site 1500), London

Guy's Hospital ( Site 1501), London

St. Georges University Hospital NHS Foundation Trust ( Site 1505), London

Birmingham & Solihull Heartlands Hospital NHS ( Site 1506), Solihull

Royal Cornwall Hospital ( Site 1502), Truro