Tumour-treating fields (TTFields) are a noninvasive cancer treatment modality, which first demonstrated clinical benefits in combination with chemotherapy in glioblastoma multiforme (GBM). At a webinar organized by the Hong Kong Cancer Therapy Society (HKCTS), experts discussed TTFields’ potential in other cancer types, including hepatocellular carcinoma (HCC) and pancreatic cancer, and the rationale for combining TTFields with immunotherapy.