An observational study in Nasopharyngeal Carcinoma, sponsored by Zhongshan People's Hospital, Guangdong, China. Recruiting at 2 sites in China. Open to participants aged 30 Years to 69 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-29.
Sponsored by Zhongshan People's Hospital, Guangdong, China · Observational
The study includes two cohorts: (1) a serological screening cohort; (2) a serological and EBV DNA screening cohort. All participants will be tested for EBNA1-IgA, VCA-IgA, BNLF2b total antibodies (P85-Ab), with additional plasma EBV DNA testing in the latter cohort. Screening positive participants will be followed up annually.
All subjects will also be followed by record linkage to Cancer Register and Population Register.
Sample selection
- Select communities of 20,000 to 40,000 populations in Zhongshan City and Wuzhou city as the investigators' fields.
Participants recruitment
Tests and follow up
30-69 years old healthy residences in Zhongshan City and Wuzhou City.
Exclusion Criteria:
30-69 years old healthy participants.
Biological: Blood and saliva · Diagnostic Test: P85-Ab, EBNA1-IgA, VCA-IgA · Diagnostic Test: Fiberoptic endoscopy and biopsy
30-69 years old healthy participants.
Biological: Blood and saliva · Diagnostic Test: P85-Ab, EBNA1-IgA, VCA-IgA · Diagnostic Test: Consecutive EBV DNA testing · Diagnostic Test: Fiberoptic endoscopy and biopsy
Collect blood and saliva samples from participants
Detect P85-Ab, EBNA1-IgA, VCA-IgA for all participants.
All participants undergo baseline EBV DNA testing. Those with positive results are invited for repeat testing approximately 4 weeks later. Consecutive positivity is defined as positive results at both tests.
Screening participants with high risk or P85-Ab positive will refer to fiberoptic endoscopy and biospy
Screening participants with high risk or P85-Ab positive or consecutive EBV DNA positive will refer to fiberoptic endoscopy and biospy
Sensitivity and specificity of different EBV associated biomarkers
To compare the sensitivity and specificity of different EBV associated biomarkers for NPC
Time frame: 5 years
Positive and negative predictive values of different EBV associated biomarkers
To compare the positive and negative predictive values of different EBV associated biomarkers for NPC
Time frame: 5 years
Number needed to screen to identify one nasopharyngeal carcinoma
To compare the number of participants needed to screen identify one nasopharyngeal carcinoma for different biomarkers
Time frame: 5 years
Early diagnosis rate of nasopharyngeal carcinoma
To compare the early diagnosis rate of different biomarkers for nasopharyngeal carcinoma
Time frame: 5 years
The health economic benefits of different biomarkers for nasopharyngeal carcinoma
To explore the overall survival rate, progression free survival rate and health economic benefits of NPC screening using different biomarkers
Time frame: 5 years
New screening strategy of nasopharyngeal carcinoma screening
Comprehensive analysis of the performance of different biomarkers and their combination in the screening of nasopharyngeal carcinoma
Time frame: 5 years
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Zhongshan People's Hospital, Guangdong, China