Prospective Registry Study of Patients Aged 18 and Older with Unresectable Locally Advanced or Metastatic Breast Cancer

What this Trial Is About

Researchers are conducting a prospective, multicenter observational study to create a registry for patients with unresectable locally advanced or metastatic breast cancer. This study includes patients diagnosed from January 2016 onwards, either at first diagnosis or after recurrence. Treatment choices are made independently by physicians, and the study does not specify any treatment regimen. The study groups are defined by breast cancer subtypes based on receptor expression, including Luminal A-like, Luminal B-like HER2 negative and positive, HER2-enriched, and Triple Negative subtypes. Since this is an observational study, patients receive standard care as determined by their doctors, and no intervention is assigned by the study. Participants medical records and disease management data will be collected and reviewed over an 8-year period. Researchers will evaluate the distribution of breast cancer subtypes, patient and tumor characteristics, hereditary risk factors, gender differences in disease progression, timing of primary tumor surgery, and biomarker presence in tumor and blood samples. Patients may withdraw consent at any time, and the study aims to follow patients until death or study completion.

A Prospective Registry Study in Patients With Unresectable Locally Advanced or Metastatic Breast Cancer (MBC)