About this trial
This prospective observational study aims to investigate subtype-specific circulating microRNAs (miRNAs) and their association with response to neoadjuvant chemotherapy (NAC) in patients with breast cancer. Serum samples will be collected before NAC and prior to surgery, and changes in miRNA expression levels will be evaluated. Pathological complete response (pCR) and Miller-Payne scoring will be used to assess treatment response after NAC. The study also explores whether changes in circulating miRNA profiles can predict treatment response across different breast cancer subtypes. The findings may help identify biomarkers that support treatment planning and personalized therapy strategies.
Eligibility criteria
Qualifiers
Histologically confirmed breast cancer
Planned to receive neoadjuvant chemotherapy
Biologically female
Age ≥ 18 years
Disqualifiers
Presence of metastatic disease at diagnosis
Prior systemic chemotherapy for breast cancer
Pregnancy or breastfeeding
Active infection or uncontrolled comorbid conditions interfering with study participation
Trial design
Treatments tested in this trial
- Not listed