Biosimilars can bring many benefits; here, Rob Duncombe, of the Christie NHS Foundation Trust, Manchester, UK, discusses the biosimilars currently being used in cancer treatment, and the key role of pharmacists in their implementation and usage. This interview took place at the International Society of Oncology Pharmacy Practitioners (ISOPP) Symposium 2019, hosted by the British Oncology Pharmacy Association (BOPA), held in London, UK.