# Blood EBV DNA screening for nasopharyngeal cancer across southern China and Southeast Asia

Source: https://onco.cc/ideas/idea-prev-ebv-dna-npc-screening-scaleup/  
OnCo record `idea-prev-ebv-dna-npc-screening-scaleup` (Idea). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Nasopharyngeal cancer is common in southern China and is caused by a virus. A blood test for viral DNA finds it early, and a large study showed better survival. Scale it up.

## Summary

Plasma EBV DNA screening detected nasopharyngeal carcinoma at earlier stage with improved progression-free survival in a 20,000-man Hong Kong study. Propose programme rollout in high-incidence regions with two-time-point confirmation, endoscopy for persistent positives, and mortality evaluation via registries.

## Fields

- Kind: Idea
- Last checked: 2026-09-08
- Hypothesis: Programme screening reduces nasopharyngeal cancer mortality by at least 30% in screened men aged 40-62 in high-incidence regions.
- Rationale: A strong single-cancer test with a clear cause; high-incidence regions make positive predictive value acceptable.
- Proposed test: Cluster-randomised implementation in Guangdong or Guangxi with registry follow-up.
- Maturity: being-tested-at-scale
- Actor: policy

## Sources

- Bottleneck evidence (The hardest cancers are found late): Crosby et al., Early detection of cancer (Science 2022): https://doi.org/10.1126/science.aay9040

## Connected records

- cancers: [Head and neck squamous cell carcinoma](https://onco.cc/cancers/head-and-neck/)
- fronts: [Early Detection & Screening](https://onco.cc/fronts/early-detection/)
- technologies: [Liquid biopsy (ctDNA)](https://onco.cc/technologies/liquid-biopsy/)
- institutions: [Sun Yat-sen University Cancer Center](https://onco.cc/institutions/sysucc/)
- bottlenecks: [Most of the world has almost no cancer care](https://onco.cc/bottlenecks/b-global-access/), [The hardest cancers are found late](https://onco.cc/bottlenecks/b-early-detection/)
- key papers: [Early detection of cancer](https://onco.cc/key-papers/paper-crosby-science/)

---
JSON: https://onco.cc/api/v1/entities/idea-prev-ebv-dna-npc-screening-scaleup.json