Evidence map›Paper›PMID 25636703›Full record

Trial reportRadiation oncology (London, England)2015

Acute small-bowel toxicity during neoadjuvant combined radiochemotherapy in locally advanced rectal cancer: determination of optimal dose-volume cut-off value predicting grade 2-3 diarrhoea.

Tina Reis, Edwin Khazzaka, Grit Welzel, Frederik Wenz, Ralf-Dieter Hofheinz, Sabine Mai

Open access · goldAbstract readClinical Trial, Phase IClinical Trial, Phase II
In one paragraph

Trial report in Radiation oncology (London, England), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 22% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Small bowel protection in IMRT for rectal cancer : A dosimetric study on supine vs. prone position.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2017
    Article
  9. Article
  10. Influence of position and radiation technique on organs at risk in radiotherapy of rectal cancer.Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban · 2016
    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 2 institutions in 1 country.

Tina ReisDepartment of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany. tina.reis@umm.de.
Edwin KhazzakaDepartment of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany. edwinkhazzaka@gmx.de.
Grit WelzelDepartment of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany. Grit.Welzel@umm.de.
Frederik WenzDepartment of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany. Frederik.Wenz@umm.de.
Ralf-Dieter HofheinzMedical Clinic, University Medical Center Mannheim, University of Heidelberg, Heidelberg, Germany. Ralf.Hofheinz@umm.de.
Sabine MaiDepartment of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany. Sabine.Mai@umm.de.
Heidelberg University · DEUniversity Hospital Heidelberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCurrent therapeutic standard for locally advanced rectal cancer is the neoadjuvant radiochemotherapy with total mesorectal excision. Diarrhoea is the main acute side effect, induced by the dose to the small-bowel, frequently leading to a treatment modification. Aim of this study was to analyse the differences between the irradiated small-bowel volumes and the occurrence of acute diarrhea during combined radiochemotherapy for rectal cancer.

methods45 patients treated with a neoadjuvant radiochemotherapy (three-field box 50.4 Gy; Cetuximab, Capecitabine, Irinotecan) for locally advanced rectal cancer within a prospective phase I/II study were evaluated. Based on the dose-volume histograms, the small-bowel volumes receiving doses of 5, 10 … 45 Gy (V5, V10 …V45) were calculated and compared with the prospectively documented small- bowel toxicities.

resultsThere was a statistically significant difference between irradiated small-bowel volumes and the severity of therapy related diarrhoea. The strongest validity concerning the risk of developing a grade 2-3 diarrhoea was seen at a dose level of 5 Gy (V 5) with a small-bowel volume of 291.94 cc. Patients with V 5 > 291.94 cc had significantly more often grade 2-3 diarrhoea, than patients with V5 below this cut-off value (82% vs. 29%; p < 0.0001).

conclusionsIn the inverse treatment planning of rectal caner patients the small-bowel volume receiving 5 Gy should be limited to about 300 cc.

Indexed as

AdultAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsCamptothecinCapecitabineCetuximabChemoradiotherapyDiarrheaFemaleFollow-Up StudiesHumansIntestine, SmallIrinotecanLiver NeoplasmsMaleCamptothecinCapecitabineCetuximabIrinotecan

Identifiers

PMID25636703
PMCPMC4324657
OpenAlexW2132737036

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.