BARCELONA, Spain – Sunday's Presidential Symposium at the 2019 Congress of the European Society of Medical Oncology was devoted to breast cancer studies, and two of those studies – MONARCH-2 and MONALEESA-3 – reported an overall survival (OS) benefit of combining a CDK4/6 inhibitor with endocrine therapy Faslodex (fulvestrant) in metastatic hormone receptor-positive (HR+) breast cancer in several different settings.