Academic Journal
Circulating tumor DNA sequencing in colorectal cancer patients treated with first-line chemotherapy with anti-EGFR
| Title: | Circulating tumor DNA sequencing in colorectal cancer patients treated with first-line chemotherapy with anti-EGFR |
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| Authors: | Yoojoo Lim, Sheehyun Kim, Jun-Kyu Kang, Hwang-Phill Kim, Hoon Jang, Hyojun Han, Hyoki Kim, Min Jung Kim, Kyung-Hun Lee, Seung-Bum Ryoo, Ji Won Park, Seung-Yong Jeong, Kyu Joo Park, Gyeong Hoon Kang, Sae-Won Han, Tae-You Kim |
| Source: | Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021) |
| Publisher Information: | Nature Portfolio, 2021. |
| Publication Year: | 2021 |
| Collection: | LCC:Medicine LCC:Science |
| Subject Terms: | Medicine, Science |
| More Details: | Abstract Circulating tumor DNA (ctDNA) may reveal dynamic tumor status during therapy. We conducted serial ctDNA analysis to investigate potential association with clinical outcome in metastatic colorectal cancer (mCRC) patients receiving chemotherapy. Tissue KRAS/NRAS wild-type mCRC patients were enrolled and treated with first-line cetuximab-containing chemotherapy. ctDNA isolated from plasma were analyzed by next generation sequencing (NGS) with 16 targeted gene panel. Among 93 patients, 84 (90.3%) had at least 1 somatic mutation in baseline ctDNA samples (average 2.74). Five patients with KRAS or NRAS hotspot mutation in the ctDNA showed significantly worse progression-free survival (PFS) (p = 0.029). Changes in average variant allele frequency (VAF) in ctDNA showed significant correlation with tumor size change at the time of first response evaluation (p = 0.020) and progressive disease (PD) (p = 0.042). Patients whose average VAF decreased below cutoff ( |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-021-95345-4 |
| Access URL: | https://doaj.org/article/743bbc06cf9748eeaadef63b4ff5bb41 |
| Accession Number: | edsdoj.743bbc06cf9748eeaadef63b4ff5bb41 |
| Database: | Directory of Open Access Journals |
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| ISSN: | 20452322 |
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| DOI: | 10.1038/s41598-021-95345-4 |
| Published in: | Scientific Reports |
| Language: | English |