Brig Glis

Researchers are evaluating the safety, effectiveness, and quality of life for combining Abemaciclib with either an Aromatase Inhibitor or Fulvestrant in women with hormone receptor positive, HER2 negative metastatic breast cancer. This includes both premenopausal and postmenopausal patients receiving first-line treatment. The trial also explores biomarker research to understand responses and resistance to this combined endocrine therapy. Participants receive Abemaciclib 150 mg orally every 12 hours along with either an Aromatase Inhibitor (Anastrozole, Letrozole, or Exemestane) taken once daily in 28-day cycles, or Fulvestrant given by injection on days 1 and 15 of the first cycle, then on day 1 of subsequent 28-day cycles. Side effects and patient-reported outcomes are monitored using the CANKADO digital health app, allowing daily tracking alongside standard clinical documentation. During the study, patients regularly report symptoms and side effects through the app, and undergo laboratory tests, imaging, and clinical assessments to monitor disease progression and treatment safety. The main outcome measured is progression-free survival over up to 48 months. Safety and quality of life are also closely observed throughout the trial period.