Evidence map›Paper›PMID 36110940›Full record

ArticleFrontiers in oncology2022

Prediction of response to systemic treatment by kinetics of circulating tumor DNA in metastatic pancreatic cancer.

Patrick Kirchweger, Alexander Kupferthaler, Jonathan Burghofer, Gerald Webersinke, Emina Jukic, Simon Schwendinger, Helwig Wundsam, Matthias Biebl, Andreas Petzer, Holger Rumpold

Open access · goldAbstract read
In one paragraph

Article in Frontiers in oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.0field-weighted citation impact, top 12% 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.

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

16 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
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  6. The Prognostic Impact of Early ctDNA Kinetics in Metastatic Pancreatic Cancer Using the ctDNA-RECIST.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025
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  12. Liquid biopsy-based early tumor and minimal residual disease detectionMedizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V · 2023
    Article
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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

10 authors at 4 institutions in 1 country.

Patrick KirchwegerGastrointestinal Cancer Center, Ordensklinikum Linz, Linz, Austria.
Alexander KupferthalerDepartment of Diagnostic and Interventional Radiology, Ordensklinikum Linz, Linz, Austria.
Jonathan BurghoferLaboratory for Molecular Genetic Diagnostics, Ordensklinikum Linz, Linz, Austria.
Gerald WebersinkeLaboratory for Molecular Genetic Diagnostics, Ordensklinikum Linz, Linz, Austria.
Emina JukicInstitute of Human Genetics, Medical University of Innsbruck, Innsbruck, Austria.
Simon SchwendingerInstitute of Human Genetics, Medical University of Innsbruck, Innsbruck, Austria.
Helwig WundsamDepartment of Surgery, Ordensklinikum Linz, Linz, Austria.
Matthias BieblDepartment of Surgery, Ordensklinikum Linz, Linz, Austria.
Andreas PetzerMedical Faculty, Johannes Kepler University Linz, Linz, Austria.
Holger RumpoldGastrointestinal Cancer Center, Ordensklinikum Linz, Linz, Austria.
Kepler Universitätsklinikum · ATJohannes Kepler University of Linz · ATInnsbruck Medical University · ATUniversität Innsbruck · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Pretherapeutic detectable circulating tumor DNA (ctDNA) represents a promising prognostic biomarker for predicting relapse and overall survival in patients with metastatic pancreatic cancer. However, the prognostic value of ctDNA dynamics during treatment has not been studied thus far. We aimed to investigate the correlation between the change of ctDNA levels and response to treatment in patients treated by systemic therapy. Material and methods: CtDNA detection using liquid biopsy (droplet digital PCR (ddPCR) utilizing Results: The detection rate at baseline was 64.3% (45/70), and complete serial measurement records were available for 32 ctDNA-positive patients. Reduction of ctDNA levels below 57.9% of its baseline value at week 2 after treatment initiation was significantly predictive of response to treatment (area under the curve (AUC) = 0.918, sensitivity 91.67%, and specificity 100%) and was associated with prolonged overall survival (OS) (5.7 vs. 11.4 months, p = 0.006) and progression-free survival (PFS) (2.5 vs. 7.7 months, p < 0.000) regardless of treatment line. Pretherapeutic ctDNA detection was independently associated with worse OS in patients receiving a first-line regimen (7 vs. 11.3 months, p = 0.046) and regardless of treatment line (11.4 vs. 15.9 months, p = 0.045) as well as worse PFS (3.4 vs. 10.8 months, p = 0.018). Conclusion: The change in magnitude of ctDNA during systemic treatment allows the prediction of treatment response and is associated with both OS and PFS. This finding adds significant clinical potential to the already established prognostic value of ctDNA positivity in metastatic pancreatic cancer.

Indexed as

circulating tumor DNAliquid biopsymetastatic pancreatic cancerpredictive markerresponse to systemic treatment

Identifiers

PMID36110940
PMCPMC9468369
OpenAlexW4293538875

What OpenQuestion holds

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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.