Assessing a genomic classifier for HER2-positive early-stage breast cancer management

A Composite Assay for HER2-positive Early-stage Breast Cancer Management

Observational Fondazione IRCCS Istituto Nazionale dei Tumori, Milano · NCT06762977

This study is testing a new genetic tool to see if it can help predict how well women with early-stage HER2-positive breast cancer will do after treatment with certain therapies.

Quick facts

Study typeObservational
Enrollment180 (estimated)
Ages18 Years and up
SexAll
SponsorFondazione IRCCS Istituto Nazionale dei Tumori, Milano Academic / other
Drugs / interventionstrastuzumab, pertuzumab
Locations2 sites (Brindisi and 1 other locations)
Trial IDNCT06762977 on ClinicalTrials.gov

What this trial studies

This observational study evaluates the prognostic value of a genomic classifier (S18) and its refined version (S*) in women with early-stage HER2-positive breast cancer. It aims to determine the ability of these classifiers to predict event-free survival (EFS) and disease-free survival (DFS) in patients treated with trastuzumab-based therapies. The study collects clinical-pathological and genomic data from women aged 18 or older with operable breast cancer stages I-III, integrating this information to enhance the prognostic capabilities of the classifiers.

Who should consider this trial

Good fit: Ideal candidates are women aged 18 or older with operable HER2-positive breast cancer stages I-III who have received trastuzumab-based therapies.

Not a fit: Patients with a prior diagnosis of invasive cancer before their breast cancer diagnosis or those in follow-up for less than 3 years after surgery may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more accurate prognosis for patients with HER2-positive early-stage breast cancer, guiding treatment decisions.

How similar studies have performed: Other studies have shown promise in using genomic classifiers for breast cancer prognosis, indicating a potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age ≥ 18 years
2. Operable breast cancer (stage I-III)
3. Any status of hormone receptor in the primary tumor, according to institutional guidelines
4. HER2-positive primary tumor, according to ASCO guidelines, i.e., HER2-positive phenotype by immunohistochemistry (IHC) 3+ or 2+ with a positive result for ERBB2 gene amplification analysis using ISH techniques (CISH, SISH, FISH)
5. Neoadjuvant and/or adjuvant therapy based on trastuzumab ± pertuzumab
6. Written informed consent from patients

Exclusion Criteria:

1. Patient in follow-up for less than 3 years after surgery
2. A prior diagnosis of invasive cancer before the diagnosis of breast cancer

Where this trial is running

Brindisi and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast Cancer Early Stage Breast CancerHER2HER2-positiveoperable breast cancergene-expression based classifierprognosis
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.