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Nasopharyngeal carcinoma (NPC) is a unique head and neck cancer, where the endemic subtype is strongly associated with Epstein-Barr virus (EBV) infection, whereas emerging data suggest that a subset of nonendemic NPC may be associated with human papillomavirus (HPV) infection. Nonetheless, treatment advances have been driven by clinical trials conducted in endemic NPC, investigating optimal sequencing of chemotherapy and immune checkpoint inhibitors with radiotherapy for locoregionally advanced disease. The preference for induction chemotherapy (IC) in these patients has also led to evolution in the concept of radiotherapy target delineation. Because of its association with EBV, plasma EBV DNA is an archetypal biomarker for endemic NPC, and it is being explored for precise stratification and treatment individualization in several ongoing trials. In the space of recurrent or metastatic-NPC, with the advent of platinum-doublet chemotherapy and anti-PD-1 antibody as the new standard of care, several trials are investigating new immunotherapeutic combinations, bispecific antibodies, and antibody-drug conjugates that have demonstrated promise in early phase trials. An important advance for NPC in 2025 is the update of the 9th version of the TNM staging system, which has introduced several key changes, including downgrading of the TNM stage groupings for localized disease, and splitting of metastatic NPC into IVA and IVB based on the number of metastatic lesions. These revisions would have implications for the treatment and design of future trials. These advances are also relevant to nonendemic NPC, where evidence is inconclusive whether this disease responds differently to current treatments compared with endemic NPC.
Chua et al. (Thu,) studied this question.