Abstract Abemaciclib plus fulvestrant was approved in Europe following publication of the MONARCH-2 trial and recommended to enter the NICE Cancer Drugs Fund for HR+/HER2− advanced breast cancer. We aimed to assess MONARCH-2 generalisability to England clinical practice using real-world NHS trust data. We identified patients receiving abemaciclib plus fulvestrant from April to December 2019 in the NHS England Blueteq and Systemic Anti-Cancer Therapy data, with follow-up to March 2024.