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Study identifier: NCT06382948 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Elacestrant + Everolimus in Patients ER+/HER2-, ESR1mut, Advanced Breast Cancer Progressing to ET and CDK4/6i.

Condition: Advanced Breast Cancer · ER-positive Breast Cancer · HER2-negative Breast Cancer  ·  Sponsor: MedSIR

PhasePhase 3
Planned participants240
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This trial will study a type of advanced breast cancer (ABC) defined as endocrine receptor (ER)-positive/human epidermal growth factor receptor 2(HER2)-negative and estrogen receptor 1 (ESR1)-mutated. Patients will be treated with elacestrant, a compound that acts as a selective estrogen receptor degrader, and everolimus (or placebo), a kinase inhibitor indicated for the treatment of postmenopausal women with advanced hormone receptor-positive, HER2-negative breast cancer. The main purpose of the study is to analyze the efficacy (to find out how effective a treatment is) of elacestrant plus everolimus therapy in patients who have ER-positive/HER2-negative, ESR1-mutated, ABC progressing to endocrine therapy and cyclin-dependent kinase 4/6 (CDK4/6) inhibitor. The efficacy of elacestrant plus everolimus combination will be determined by assessing the period from elacestrant plus everolimus (or placebo) treatment initiation until to the first occurrence of disease progression, unacceptable toxicity, death, or discontinuation from the study treatment for any other reason, whichever occurs first, defined as progression free survival. Rigorous eligibility criteria based on specific co-morbidities and clinicopathologic features of their disease have been designed to minimize the risk of patients participating in this study. The anticipated favorable clinical benefits of elacestrant combined with everolimus are projected to outweigh the risks of this treatment. This study will be pe…

This description comes directly from the study's public registry record.

Talk to the study team

Medsir  ·  +34932214135  ·  contact.trials@medsir.org

Always discuss trial participation with your own doctor first.

Locations (99)

Medizinische Universität InnsbruckInnsbruck, AustriaRecruiting
Ordensklinikum Linz Barmherzige SchwesternLinz, AustriaRecruiting
Ordination Priv.-Doz. Dr. Michael HubalekSchwaz, AustriaRecruiting
Medical University of ViennaVienna, AustriaNot Yet Recruiting
Tacchini Instituto de PesquisaBento Gonçalves, BrazilNot Yet Recruiting
Hospital Cachoeiro de ItapemirimCachoeiro de Itapemirim, BrazilNot Yet Recruiting
Catarina Pesquisa Clínica - Neoplasias LitoralItajaí, BrazilNot Yet Recruiting
UPCO - Hospital de Clinicas de Porto AlegrePorto Alegre, BrazilNot Yet Recruiting
NOB OndinaSalvador, BrazilNot Yet Recruiting
Masaryk Memorial Cancer InstituteBrno, CzechiaRecruiting
Multiscan Nemocnice HoroviceHořovice, CzechiaRecruiting
University Hospital OlomoucOlomouc, CzechiaNot Yet Recruiting

+ 87 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT06382948