Evidence map›Paper›PMID 28922362›Full record

Trial reportPloS one2017

Early relapses after adjuvant chemotherapy suggests primary chemoresistance in diffuse gastric cancer.

Sharon Pattison, Catherine Mitchell, Stephen Lade, Trevor Leong, Rita A Busuttil, Alex Boussioutas

Open access · goldAbstract readClinical TrialComparative StudyMulticenter Study
In one paragraph

Trial report in PloS one, 2017. 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
1.4field-weighted citation impact, top 17% 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, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Hereditary Diffuse Gastric Cancer: A 2022 Update.Journal of personalized medicine · 2022
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Diffuse gastric cancer: histologic, molecular, and genetic basis of disease.Translational gastroenterology and hepatology · 2020
    Review
  14. Article
  15. Review
  16. Article
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

6 authors at 3 institutions in 2 countries.

Sharon PattisonDepartment of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.ORCID http://orcid.org/0000-0003-2188-3423
Catherine MitchellDepartment of Pathology, Peter MacCallum Cancer Centre, Parkville, Victoria, Australia.
Stephen LadeDepartment of Pathology, Peter MacCallum Cancer Centre, Parkville, Victoria, Australia.
Trevor LeongDepartment of Radiation Oncology, Peter MacCallum Cancer Centre, Parkville, Victoria, Australia.
Rita A BusuttilSir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia.
Alex BoussioutasSir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia.
The University of Melbourne · AUPeter MacCallum Cancer Centre · AUUniversity of Otago · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSurvival from gastric cancer remains poor, particularly in Western populations. Previous pre-clinical and subgroup analyses of clinical trials have suggested differing benefits from fluoropyrimidine-based chemotherapeutics for diffuse and intestinal gastric cancer. This analysis examines patterns of relapse with and without adjuvant chemotherapy after curative resection for gastric cancer in these subtypes to explore the Lauren classification as a predictive marker of benefit for fluoropyrimidine-based adjuvant chemotherapy. PATIENTS AND

methodsGastric cancer patients enrolled in an ongoing tissue banking study were analysed, 164 patients who would currently be considered for adjuvant therapy after curative resection were included in the analysis. Patients who did and did not receive adjuvant chemotherapy were compared. The primary end point was relapse free survival.

resultsApproximately 50% of patients received adjuvant chemotherapy, the majority receiving a fluoropyrimidine-based regimen. The comparison of Kaplan-Meier curves for patients who did and did not receive adjuvant chemotherapy are different between patients with intestinal and diffuse gastric cancer, and suggest that there may be a benefit in intestinal gastric cancer. The hazard ratio for adjuvant chemotherapy for intestinal gastric cancer was 0.56, (95% CI 0.27-1.17), suggesting a trend towards benefit that was lacking in diffuse gastric cancer patients (1.26, 95% CI 0.70-2.38). The patterns of relapse after adjuvant chemotherapy also differed between diffuse and intestinal gastric cancer. More than 50% of diffuse gastric cancer patients who received adjuvant chemotherapy relapsed within 12 months of surgery despite similar surgical parameters.

conclusionsLauren classification is prognostic in gastric cancer. This analysis adds further evidence that it may also be predictive of benefit for fluoropyrimidine-based chemotherapeutics, with lower chemosensitivity seen in diffuse gastric cancer. Treating diffuse and intestinal gastric cancer as separate entities, with identification of efficacious treatments for diffuse gastric cancer will help in improving outcomes from gastric cancer.

Indexed as

Chemotherapy, AdjuvantNeoplasm Recurrence, LocalStomach NeoplasmsAdultAgedAged, 80 and overDisease-Free SurvivalDrug Resistance, NeoplasmFemaleHumansMaleMiddle AgedSurvival Rate

Identifiers

PMID28922362
PMCPMC5602536
OpenAlexW2756000664

What OpenQuestion holds

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LicenceCC BY
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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.