Clinical Trial: ESR1 Mutations in Metastatic Hormone Receptor-Positive Breast Cancer in the Greek Population

U.S., Oct. 28 -- ClinicalTrials.gov registry received information related to the study (NCT07899463) titled 'ESR1 Mutations in Metastatic Hormone Receptor-Positive Breast Cancer in the Greek Population' on April 03.

Brief Summary: The goal of this observational study is to assess the prevalence of ESR1 mutations in patients with metastatic hormone receptor-positive/HER2-negative breast cancer in Greece and evaluate the associations of these mutations with disease characteristics, clinical outcomes and real-world treatment patterns.

This study will include participants who have already undergone ESR1 testing as part of their standard medical care. Patient real-world data will be extracted by the patient's medical records. No additional pro...