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    BIOMARKER:

    HER-2 negative + ER positive

    i
    Other names: ERBB2, CD340, HER-2, HER2, NEU, NGL, V-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2; ESR1, Era, ESR, NR3A1, ER, ER beta
    Entrez ID:
    2064; 2099
    Related biomarkers:
    Expression
    Mutation
    CNA
    Fusion
    Others
    Associations

    News

    Trials
    4d
    Enabling DCIS subtyping: leveraging foundation models for robust grading and molecular biomarker scoring. (PubMed, NPJ Breast Cancer)
    Using these outputs, we stratified patients according to active surveillance criteria, reaching balanced accuracies of 0.81 (Dutch) and 0.64 (UK), with corresponding NPVs of 0.86 and 0.76. Our models generalize across cohorts and reliably predict key biomarkers, supporting the identification of DCIS patients eligible for less aggressive management.
    Journal
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    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor)
    |
    ER positive • HER-2 negative • HER-2 negative + ER positive
    4d
    ADAPTela: Marker - Adjusted Therapy Comparing Adjuvant Elacestrant With Standard Endocrine Treatment in Genomically and/or Clinically High-risk ER+/HER2- eBC (clinicaltrials.gov)
    P3, N=1520, Recruiting, West German Study Group | Not yet recruiting --> Recruiting
    Enrollment open
    |
    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • PGR (Progesterone receptor)
    |
    ER positive • HR positive • HER-2 negative • HER-2 negative + ER positive
    |
    MammaPrint® • Oncotype DX Breast Recurrence Score®Test
    |
    Orserdu (elacestrant)
    4d
    CLEE011AIC01: A Study of Ribociclib in Combination With Hormonal Therapy in HR+/HER2- Advanced or Metastatic Breast Cancer (clinicaltrials.gov)
    P=N/A, N=175, Completed, Novartis Pharmaceuticals | Recruiting --> Completed | N=550 --> 175
    Trial completion • Enrollment change • HEOR • Real-world evidence
    |
    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • PGR (Progesterone receptor)
    |
    ER positive • HER-2 negative • PGR positive • HER-2 negative + AR positive + ER positive • HER-2 negative + ER positive
    |
    Kisqali (ribociclib)
    6d
    Evaluation of a Once Per Day Regimen of Accelerated Partial Breast Irradiation for Improved Breast Appearance in Pts w/Low Risk, Hormone Responsive Brst Ca (clinicaltrials.gov)
    P2, N=48, Active, not recruiting, City of Hope Medical Center | Suspended --> Active, not recruiting
    Enrollment closed
    |
    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor)
    |
    ER positive • HER-2 negative • HER-2 negative + ER positive
    6d
    Trial of Anastrozole and Palbociclib in Metastatic HER2-Negative Breast Cancer (clinicaltrials.gov)
    P2, N=40, Active, not recruiting, Wake Forest University Health Sciences | Trial completion date: Jun 2026 --> Jun 2028 | Trial primary completion date: Jun 2026 --> Jun 2028
    Trial completion date • Trial primary completion date
    |
    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • PGR (Progesterone receptor)
    |
    ER positive • HER-2 negative • HER-2 negative + AR positive + ER positive • HER-2 negative + ER positive
    |
    Ibrance (palbociclib) • anastrozole
    6d
    Metaplastic Breast Carcinoma: Clinicopathological Characteristics, Treatment Patterns, and Outcomes. (PubMed, Cureus)
     MBC in this cohort presented with aggressive histopathological features and predominantly advanced-stage disease. These findings highlight the need for improved breast cancer awareness, early detection, and individualized treatment strategies, particularly in resource-limited settings.
    Journal
    |
    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • PGR (Progesterone receptor)
    |
    HER-2 negative • HER-2 expression • HER-2 negative + ER positive
    8d
    Incidence, Clinicopathologic Features, and Follow-up Results of Invasive Ductal Carcinoma With Lobular-Like Growth Pattern. (PubMed, Clin Breast Cancer)
    IDC-LL demonstrates clinicopathologic and molecular features intermediate between IDC and ILC. Recognition of IDC-LL as a distinct morphologic category is warranted to optimize diagnosis and surgical management.
    Journal
    |
    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • CDH1 (Cadherin 1)
    |
    HER-2 positive • ER positive • HER-2 negative • ER positive + HER-2 negative • HER-2 negative + ER positive
    |
    Oncotype DX Breast Recurrence Score®Test
    10d
    ETHAN - ET for Male BC (clinicaltrials.gov)
    P2, N=60, Recruiting, Jose Pablo Leone | Trial primary completion date: Apr 2026 --> Apr 2027
    Trial primary completion date
    |
    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • PGR (Progesterone receptor)
    |
    ER positive • HR positive • HER-2 negative • HR positive + HER-2 negative • HER-2 negative + ER positive
    |
    Verzenio (abemaciclib) • anastrozole • Firmagon (degarelix) • Soltamox (tamoxifen citrate)
    11d
    LESS: Deescalation of Endocrine Therapy Duration in Women With HR+ HER2- Breast Cancer at Very Low Risk (clinicaltrials.gov)
    P2, N=696, Recruiting, UNICANCER | Active, not recruiting --> Recruiting
    Enrollment open
    |
    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • PGR (Progesterone receptor)
    |
    HER-2 negative • HER-2 negative + ER positive
    |
    MammaPrint®
    11d
    Palbociclib and Letrozole or Fulvestrant in Treating Patients With Estrogen Receptor Positive, HER2 Negative Metastatic Breast Cancer (clinicaltrials.gov)
    P2, N=93, Completed, Alliance for Clinical Trials in Oncology | Active, not recruiting --> Completed | Trial completion date: Aug 2024 --> Feb 2026
    Trial completion • Trial completion date
    |
    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • PGR (Progesterone receptor)
    |
    ER positive • HER-2 negative • HER-2 negative + ER positive
    |
    Ibrance (palbociclib) • fulvestrant • letrozole
    11d
    ADAPTela: Marker - Adjusted Therapy Comparing Adjuvant Elacestrant With Standard Endocrine Treatment in Genomically and/or Clinically High-risk ER+/HER2- eBC (clinicaltrials.gov)
    P3, N=1520, Not yet recruiting, West German Study Group
    Trial initiation date
    |
    HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • PGR (Progesterone receptor)
    |
    ER positive • HR positive • HER-2 negative • HER-2 negative + ER positive
    |
    MammaPrint® • Oncotype DX Breast Recurrence Score®Test
    |
    Orserdu (elacestrant)