U.S., July 29 -- ClinicalTrials.gov registry received information related to the study (NCT07088861) titled 'Validation of the 9th AJCC Staging System for NPC in Non-High-Incidence Areas in China' on July 21.
Brief Summary: Background:
Nasopharyngeal carcinoma (NPC) is a malignancy with marked geographic variation, with over 80% of global cases found in Southeast and East Asia. However, the characteristics of NPC in non-high-incidence areas in China (such as Jiangsu, Zhejiang, and Anhui provinces) remain understudied. These regions show different EBV prevalence, environmental exposures, and socioeconomic factors compared to endemic regions, which may affect tumor biology and treatment response. The 9th edition AJCC/UICC TNM staging system...