Evidence map›Paper›PMID 31858615›Full record

ArticleAlimentary pharmacology & therapeutics2020

Volatile organic compounds in breath can serve as a non-invasive diagnostic biomarker for the detection of advanced adenomas and colorectal cancer.

Kelly E van Keulen, Maud E Jansen, Ruud W M Schrauwen, Jeroen J Kolkman, Peter D Siersema

3 registry-linked trialsOpen access · bronzeAbstract readEvaluation StudyMulticenter Study
In one paragraph

Article in Alimentary pharmacology & therapeutics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 66 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 9 pooled it
4.8field-weighted citation impact, top 4% of its field
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.

NCT03488537 nacompletednot on this map

Detection of Colorectal Cancer From Exhaled Air. Part II: Validation

TypeinterventionalSponsorRadboud University Medical CenterRan2018 to 2019Enrolled511ConditionsColorectal Cancer, PolypsArmsAeonoseTM
NCT05173077 unknown statusnot on this mapstarted 2022, after this paper: background citation

Hybrid-sensor Breath Analysis for Colorectal Cancer Screening (HYCOR)

TypeobservationalSponsorUniversity of LatviaRan2022 to 2023Enrolled3,000ConditionsColorectal Cancer, Polyp of ColonArmsIdentification of specific VOCs in CRC tissue surgery material, Secondary validation study in general CRC screening settings, Breath sampling for VOC detection, Blood sample collection, Microbiota testing
NCT06402318 recruitingnot on this mapstarted 2023, after this paper: background citation

A Prospective, Non-interventional, Observational Clinical Validation Study to Analytically Validate the A&M Breathalyzer PROTECT Kiosk Breath Capture System.

TypeobservationalSponsorThe Geneva FoundationRan2023 to 2026Enrolled100ConditionsCOVID-19, SARS CoV 2 Virus, COVID-19 Pneumonia, COVID-19 Respiratory InfectionArmsA&M Breathalyzer PROTECT Kiosk
3 · Its place in the literature

Who cites it

66 citing papers in PubMed, 9 syntheses or guidelines pooled it, 136 citations in OpenAlex.

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6 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Kelly E van KeulenDepartment of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands.ORCID 0000-0001-7219-2775
Maud E JansenDepartment of Gastroenterology and Hepatology, Medisch Spectrum Twente, Enschede, The Netherlands.
Ruud W M SchrauwenDepartment of Gastroenterology and Hepatology, Bernhoven, Uden, The Netherlands.
Jeroen J KolkmanDepartment of Gastroenterology and Hepatology, Medisch Spectrum Twente, Enschede, The Netherlands.ORCID 0000-0002-0442-827X
Peter D SiersemaDepartment of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands.ORCID 0000-0002-6940-8499
Radboud University Nijmegen · NLUniversity Medical Center Groningen · NLZiekenhuis Bernhoven · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundColorectal cancer (CRC) is the third most common cancer diagnosis in the Western world.

aimTo evaluate exhaled volatile organic compounds (VOCs) as a non-invasive biomarker for the detection of CRC and precursor lesions using an electronic nose.

methodsIn this multicentre study adult colonoscopy patients, without inflammatory bowel disease or (previous) malignancy, were invited for breath analysis. Two-thirds of the breath tests were randomly assigned to develop training models which were used to predict the diagnosis of the remaining patients (external validation). In the end, all data were used to develop final-disease models to further improve the discriminatory power of the algorithms.

resultsFive hundred and eleven breath samples were collected. Sixty-four patients were excluded due to an inadequate breath test (n = 51), incomplete colonoscopy (n = 8) or colitis (n = 5). Classification was based on the most advanced lesion found; CRC (n = 70), advanced adenomas (AAs) (n = 117), non-advanced adenoma (n = 117), hyperplastic polyp (n = 15), normal colonoscopy (n = 125). Training models for CRC and AAs had an area under the curve (AUC) of 0.76 and 0.71 and blind validation resulted in an AUC of 0.74 and 0.61 respectively. Final models for CRC and AAs yielded an AUC of 0.84 (sensitivity 95% and specificity 64%) and 0.73 (sensitivity and specificity 79% and 59%) respectively.

conclusionsThis study suggests that exhaled VOCs could potentially serve as a non-invasive biomarker for the detection of CRC and AAs. Future studies including more patients could further improve the discriminatory potential of VOC analysis for the detection of (pre-)malignant colorectal lesions. (https://clinicaltrials.gov Identifier NCT03488537).

Indexed as

Early Detection of CancerExhalationAdenomaAgedBiomarkers, TumorBreath TestsCase-Control StudiesColonoscopyColorectal NeoplasmsCross-Sectional StudiesDisease ProgressionElectronic NoseFemaleHumansMaleMiddle AgedBiomarkers, TumorVolatile Organic Compounds

Identifiers

PMID31858615
PMCPMC7003780
OpenAlexW2996582851

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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Registered trials

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.