ArticleScientific reports2019
Early change in circulating tumor DNA as a potential predictor of response to chemotherapy in patients with metastatic colorectal cancer.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
68 citing papers in PubMed, 2 syntheses or guidelines pooled it, 108 citations in OpenAlex.
- Plasma ctDNA kinetics as a predictor of systemic therapy response for advanced non-small cell lung cancer: a systematic review and meta-analysis.The oncologist · 2025Pooled it
- Circulating tumour DNA and its clinical utility in predicting treatment response or survival in patients with metastatic colorectal cancer: a systematic review and meta-analysis.British journal of cancer · 2022Pooled it
- Metastatic Colorectal Cancer Treatment Response Evaluation by Ultra-Deep Sequencing of Cell-Free DNA and Matched White Blood Cells.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023Trial
- Trial
- A higher ctDNA fraction decreases survival in regorafenib-treated metastatic colorectal cancer patients. Results from the regorafenib's liquid biopsy translational biomarker phase II pilot study.International journal of cancer · 2021Trial
- Potential of circulating tumor DNA as a predictor of therapeutic responses to immune checkpoint blockades in metastatic renal cell carcinoma.Scientific reports · 2021Trial
- Trial
- Longitudinal methylated ctDNA increases predict immunotherapy progression across solid tumors.The journal of liquid biopsy · 2026Article
- Liquid biopsy in colorectal cancer: redefining surgical decision-making.Updates in surgery · 2026Review
- Preoperative ctDNA and tumor volume predict colorectal cancer recurrence after metastasis resection.NPJ precision oncology · 2026Article
- A New Era of Salvage-Line Treatment for Metastatic Colorectal Cancer: The Role and Clinical Significance of Circulating Tumor DNA.Biomolecules · 2026Review
- 5-Hydroxymethylcytosine profiles in circulating cell-free DNA serve as potential biomarkers for diagnosis and classification of adenomyosis.EBioMedicine · 2026Article
- Systematic review and meta-analysis of studies assessing circulating tumor DNA kinetics in metastatic colorectal cancer.ESMO gastrointestinal oncology · 2026Review
- Review
- Investigating Early Kinetics in Plasma ctDNA and Peripheral T-cell Receptor Repertoire to Predict Treatment Outcomes to PD-1 Inhibitors in Head and Neck Squamous Cell Carcinoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026Article
- Using circulating tumor DNA as a novel biomarker of efficacy for dose-finding designs in oncology.Statistical methods in medical research · 2025Article
- Clinical Utility of Monitoring Circulating Tumor DNA Using a Targeted Next-generation Sequencing Panel in Patients with Colorectal Cancer.Annals of laboratory medicine · 2025Article
- Prognostic prediction using recursive partitioning analysis of patients undergoing salvage surgery for locally recurrent oral squamous cell carcinoma.International journal of clinical oncology · 2025Article
- Towards precision oncology: a multi-level cancer classification system integrating liquid biopsy and machine learning.BioData mining · 2025Article
- Clinical relevance of circulating tumor DNA in HER2-positive advanced gastric cancer: a collaborative study of a phase Ib trial of dual HER2 and PD-1 targeted therapy (Ni-High).Therapeutic advances in medical oncology · 2025Article
8 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The impact of ctDNA changes after chemotherapy on the clinical outcomes of patients with metastatic colorectal cancer (mCRC) remains unclear. The present study evaluated the clinical implications of the early change in ctDNA levels as a predictor of objective response and clinical outcome in mCRC patients who received chemotherapy. We investigated the effects of after/before ratio of ctDNA levels 2 and 8 weeks after initiation of second-line chemotherapy, on objective response rate (ORR), progression-free survival (PFS), and overall survival (OS). ctDNA was detected using amplicon-based deep sequencing with a molecular barcode encompassing >240 hotspot mutations in 14 colon cancer-related genes. In multivariate analysis, as compared to baseline, patients with lower ctDNA level (≤50%) 8 weeks after initiation of chemotherapy showed significantly longer PFS and OS than the patients with higher (>50%) ctDNA level. In patients achieving a partial response or stable disease, the after/before ratio of ctDNA level 8 weeks after initiation of chemotherapy was significantly lower than those in patients with progressive disease. The present study suggests that an early change in the ctDNA level might serve as a biomarker to predict the chemotherapeutic efficacy and clinical outcomes in patients with mCRC.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.