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Updated: Nov 11, 2025
Detection of Cell-Free DNA in Blood Plasma Samples of Cancer Patients
Published on: September 9, 2020
Values of liquid biopsy in early detection of cancer: results from meta-analysis
Sinong Jia1, Li Xie1,2, Lei Li1
1Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Background:
There is tremendous interest in the development of liquid biopsy techniques, but the potential role of liquid biopsy for the early detection of cancer has not yet been elucidated. We aim to explore the performance of liquid biopsy in the early diagnosis of cancer.
Methods:
A systematic review was conducted of liquid biopsy in cancer early detection. Meta-regression was carried out to explore the source of heterogeneity and publication bias was also evaluated.
Results:
Overall, there were six types of biomarkers and 17 studies focusing on liquid biopsy in the early detection of cancer, 7 studies in ctDNA, 5 studies in cfDNA, 2 studies in CTC, and the other three studies used circulating nucleosome, microRNA, and multiple biomarkers, respectively. Pooled sensitivity and specificity of liquid biopsy in cancer early detection was 0.76 (95%CI:0.67-0.83) and 0.92 (95%CI:0.86-0.96) and the area under the SROC curve was 0.91 (95%CI:0.88-0.93).
Conclusions:
The current evidence shows that liquid biopsy has relatively low sensitivity and high specificity in cancer early detection. Among all these biomarkers, cfDNA may have potentially promising value in cancer early detection, thereby supporting further study of cancer early detection.
Study Registration:
The study is registered at PROSPERO (Identifier number: CRD42020137205).
