Early detection of multiple cancers: the era of methylation-based liquid biopsy
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By
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Yajie Lin
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Zekai Hu
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Leyao Shuai
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Zhaowei Tong
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Hainv Gao
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Junsheng Zhao
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June 17, 2026
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Clinical Scorecard: Advancements in Early Cancer Detection: The Role of Methylation-Based Liquid Biopsy Techniques
At a Glance
| Category | Detail |
| Condition | Multi-cancer early detection (MCED) |
| Key Mechanisms | Circulating cell-free DNA (cfDNA) methylation signatures |
| Target Population | Individuals aged 50 years or older, symptomatic populations |
| Care Setting | Clinical screening pathways |
Key Highlights
- High specificity (>99%) and reliable accuracy for tissue of origin prediction in MCED tests
- Methylation alterations emerge prior to morphological lesion formation
- Integration of methylomics with fragmentomics enhances early detection performance
- Clinical trials (CCGA, PATHFINDER, SYMPLIFY) validate the effectiveness of MCED testing
- Challenges include technical standardization and high costs
Guideline-Based Recommendations
Diagnosis
- Utilize methylation-based assays for early cancer detection in asymptomatic and symptomatic populations
Management
- Incorporate MCED testing into clinical decision-making and screening protocols
Monitoring & Follow-up
- Monitor diagnostic resolution times and positive predictive values following MCED tests
Risks
- Consider the potential for false positives and the need for follow-up diagnostic procedures
Patient & Prescribing Data
Individuals aged 50 years or older, symptomatic patients referred for cancer investigation
MCED tests can guide referral urgency and diagnostic evaluation
Clinical Best Practices
- Implement standardized workflows for MCED testing
- Utilize multi-omics integration for improved detection capabilities
- Focus on reducing diagnostic resolution times and enhancing patient management strategies
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