“Patients who have visceral metastases typically have a worse prognosis and often demonstrate resistance to treatment, so as a clinician it is encouraging to see significant survival benefit with ribociclib in the first-line setting in patients with more aggressive disease,” said Denise A. Yardley, MD, Senior Investigator, Breast Cancer Research Program, Sarah Cannon Research Institute at Tennessee Oncology, USA. “Ribociclib is the only CDK4/6 inhibitor to show a consistent overall survival benefit in combination with endocrine therapy, while also maintaining quality of life across the Phase III program.”