Evidence map›Paper›PMID 33878340›Full record

ArticleChest2021

Usefulness of Circulating Tumor DNA in Identifying Somatic Mutations and Tracking Tumor Evolution in Patients With Non-small Cell Lung Cancer.

Moom R Roosan, Isa Mambetsariev, Rebecca Pharaon, Jeremy Fricke, Hatim Husain, Karen L Reckamp, Marianna Koczywas, Erminia Massarelli, Andrea H Bild, Ravi Salgia

Abstract read
In one paragraph

Article in Chest, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed.

  1. Trial
  2. Review
  3. Current trends and future directions of artificial intelligence in lung cancer diagnosis.Chinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2026
    Article
  4. Precision medicine in cutaneous melanoma-A comprehensive review.Journal of the European Academy of Dermatology and Venereology : JEADV · 2026
    Review
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  6. Review
  7. Review
  8. Article
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  12. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Moom R RoosanChapman University School of Pharmacy, Irvine, CA.
Isa MambetsarievCity of Hope Comprehensive Cancer Center, Duarte, CA.
Rebecca PharaonCity of Hope Comprehensive Cancer Center, Duarte, CA.
Jeremy FrickeCity of Hope Comprehensive Cancer Center, Duarte, CA.
Hatim HusainUC San Diego Health Moores Cancer Center, La Jolla, CA.
Karen L ReckampCity of Hope Comprehensive Cancer Center, Duarte, CA; Division of Medical Oncology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA.
Marianna KoczywasCity of Hope Comprehensive Cancer Center, Duarte, CA.
Erminia MassarelliCity of Hope Comprehensive Cancer Center, Duarte, CA.
Andrea H BildDivision of Molecular Pharmacology, Department of Medical Oncology and Therapeutics Research, City of Hope, Duarte, CA.
Ravi SalgiaCity of Hope Comprehensive Cancer Center, Duarte, CA. Electronic address: rsalgia@coh.org.

Funding

Transgenic Mouse FacilityP30CA033572 · NCI · CITY OF HOPE/BECKMAN RESEARCH INSTITUTE · PI STANLEY R. HAMILTON · 1985 to 2026
$86.3M
Project 2: Targeting Cooperative Phenotypes Common in Spatial HeterogeneityU54CA209978 · NCI · UNIVERSITY OF UTAH · PI BILD, ANDREA HOPE · 2017 to 2021
$10.5M
Modulation of Tumor Microenvironment for Improved Therapy of Pancreatic CancerR01CA247471 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI BATRA, SURINDER K., JAIN, MANEESH · 2020 to 2024
$2.8M
Novel approach to attenuate small cell lung cancer growth and metastasisR01CA218545 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI NASSER, MOHD WASIM · 2018 to 2022
$2.6M
NCI NIH HHS P30 CA033572NCI NIH HHS R01 CA218545NCI NIH HHS R01 CA247471NCI NIH HHS U54 CA209978
6 · The paper itself

Abstract

backgroundThe usefulness of circulating tumor DNA (ctDNA) in detecting mutations and monitoring treatment response has not been well studied beyond a few actionable biomarkers in non-small cell lung cancer (NSCLC). RESEARCH QUESTION: How does the usefulness of ctDNA analysis compare with that of solid tumor biopsy analysis in patients with NSCLC?

methodsWe retrospectively evaluated 370 adult patients with NSCLC treated at the City of Hope between November 2015 and August 2019 to assess the usefulness of ctDNA in mutation identification, survival, concordance with matched tissue samples in 32 genes, and tumor evolution.

resultsA total of 1,688 somatic mutations were detected in 473 ctDNA samples from 370 patients with NSCLC. Of the 473 samples, 177 showed at least one actionable mutation with currently available Food and Drug Administration-approved NSCLC therapies. MET and CDK6 amplifications co-occurred with BRAF amplifications (false discovery rate [FDR], < 0.01), and gene-level mutations were mutually exclusive in KRAS and EGFR (FDR, 0.0009). Low cumulative percent ctDNA levels were associated with longer progression-free survival (hazard ratio [HR], 0.56; 95% CI, 0.37-0.85; P = .006). Overall survival was shorter in patients harboring BRAF mutations (HR, 2.35; 95% CI, 1.24-4.6; P = .009), PIK3CA mutations (HR, 2.77; 95% CI, 1.56-4.9; P < .001) and KRAS mutations (HR, 2.32; 95% CI, 1.30-4.1; P = .004). Gene-level concordance was 93.8%, whereas the positive concordance rate was 41.6%. More mutations in targetable genes were found in ctDNA than in tissue biopsy samples. Treatment response and tumor evolution over time were detected in repeated ctDNA samples.

interpretationAlthough ctDNA analysis exhibited similar usefulness to tissue biopsy analysis, more mutations in targetable genes were missed in tissue biopsy analyses. Therefore, the evaluation of ctDNA in conjunction with tissue biopsy samples may help to detect additional targetable mutations to improve clinical outcomes in advanced NSCLC.

Indexed as

Carcinoma, Non-Small-Cell LungLung NeoplasmsAgedBiomarkers, TumorBiopsyCirculating Tumor DNAClass I Phosphatidylinositol 3-KinasesErbB ReceptorsFemaleHumansMaleMolecular Targeted TherapyMutationPrecision MedicineProgression-Free SurvivalProto-Oncogene Proteins B-rafBiomarkers, TumorBRAF protein, humanCirculating Tumor DNAClass I Phosphatidylinositol 3-KinasesEGFR protein, humanErbB ReceptorsKRAS protein, humanPIK3CA protein, humanProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)circulating tumor DNAnon-small cell lung canceroverall survivalprecision oncologyprogression-free survival

Identifiers

PMID33878340
PMCPMC8449001

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Registered trials

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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.