Overview
A Pilot study on circulating tumor DNA (ctDNA) in advanced/metastatic breast cancer with low levels of HER2 expression (HER2 low)
Description
Prospective single-center feasibility study of 30 patients with carcinoma breast with low levels of HER2 expression, defined as 1+ or 2+ expression levels by the IHC technique (immunohistochemistry) and the gene not amplified by the ISH test (in situ hybridization)
Eligibility
Inclusion Criteria
- Participants diagnosed with HER2-low breast cancer, defined as IHC score 1+ or 2+ and not amplified at in situ hybridization (ISH) test as confirmed by local laboratory testing.
- Participants should be at advanced or metastatic setting prior to treatment.
- Written informed consent (Accordo di Partecipazione alla Ricerca Scientifica) and specific informed consent to the study must be signed and dated by the patient and the doctor prior to inclusion.
- Patients must be accessible for follow-up.