U.S., Oct. 9 -- ClinicalTrials.gov registry received information related to the study (NCT07865507) titled 'Divergent Long-Term Clinical Courses in Two Men With Breast Cancer' on Oct. 03.

Brief Summary: This observational study describes the long-term clinical courses of two men with hormone receptor-positive, HER2-negative invasive breast cancer. Although both tumors had similar receptor profiles, the patients experienced very different outcomes. One patient developed progressive locally advanced disease followed by metastases to the lungs, bones, liver, mediastinal lymph nodes, and bilateral axillary lymph nodes after multiple systemic treatments and without definitive breast surgery. The second patient underwent mastectomy and axillary ...