Correlation between variant allele frequency and mean tumor molecules with tumor burden in patients with solid tumors
Several studies have demonstrated the prognostic value of circulating tumor DNA (ctDNA); however, the correlation of mean tumor molecules (MTM)/ml of plasma and mean variant allele frequency (mVAF; %) with clinical parameters is yet to be understood. In this study, we analyzed ctDNA data in a pan‐ca...
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-11-01
|
| Series: | Molecular Oncology |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/1878-0261.13557 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Several studies have demonstrated the prognostic value of circulating tumor DNA (ctDNA); however, the correlation of mean tumor molecules (MTM)/ml of plasma and mean variant allele frequency (mVAF; %) with clinical parameters is yet to be understood. In this study, we analyzed ctDNA data in a pan‐cancer cohort of 23 543 patients who had ctDNA testing performed using a personalized, tumor‐informed assay (Signatera™, mPCR‐NGS assay). For ctDNA‐positive patients, the correlation between MTM/ml and mVAF was examined. Two subanalyses were performed: (a) to establish the association of ctDNA with tumor volume and (b) to assess the correlation between ctDNA dynamics and patient outcomes. On a global cohort, a positive correlation between MTM/ml and mVAF was observed. Among 18 426 patients with longitudinal ctDNA measurements, 13.3% had discordant trajectories between MTM/ml and mVAF at subsequent time points. In metastatic patients receiving immunotherapy (N = 51), changes in ctDNA levels expressed both in MTM/ml and mVAF showed a statistically significant association with progression‐free survival; however, the correlation with MTM/ml was numerically stronger. |
|---|---|
| ISSN: | 1574-7891 1878-0261 |