Evidence map›Paper›PMID 28937269›Full record

Observational studyThe British journal of radiology2017

Dose escalation using contact X-ray brachytherapy (Papillon) for rectal cancer: does it improve the chance of organ preservation?

Arthur Sun Myint, Fraser McLean Smith, Simon William Gollins, Helen Wong, Christopher Rao, Karen Whitmarsh, Raj Sripadam, Paul Rooney, Michael Jeremy Hershman, Zsolt Fekete and 2 more

Registry-linked trialAbstract readObservational Study
In one paragraph

Observational study in The British journal of radiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04336202 (A Pilot Study of Dose-escalation Strategy of Radiotherapy Followed by Endorectal Brachytherapy With the Use of a New Rectal Applicator in Inoperable, Ederly Rectal Cancer Patients), which is not on this map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
–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.

NCT04336202 nasuspendednot on this mapstarted 2020, after this paper: background citation

A Pilot Study of Dose-escalation Strategy of Radiotherapy Followed by Endorectal Brachytherapy With the Use of a New Rectal Applicator in Inoperable, Ederly Rectal Cancer Patients

TypeinterventionalSponsorSir Mortimer B. Davis - Jewish General HospitalRan2020 to 2028Enrolled45ConditionsRectal Cancer, Comorbidities and Coexisting Conditions, Inoperable Disease, BrachytherapyArmsExternal beam radiotherapy + Endorectal brachytherapy
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Systematic Review of Intensity-Modulated Brachytherapy (IMBT): Static and Dynamic Techniques.International journal of radiation oncology, biology, physics · 2019
    Pooled it
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Organ Preservation in MSS Rectal Cancer.Clinics in colon and rectal surgery · 2023
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Watch-and-Wait as a Therapeutic Strategy in Rectal Cancer.Current colorectal cancer reports · 2018
    Review
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

12 authors.

Arthur Sun Myint1 The Clatterbridge Cancer Centre , Liverpool , UK.
Fraser McLean Smith3 The Royal Liverpool and Broadgreen University Hospital NHS Trust , Liverpool , UK.
Simon William Gollins4 North Wales Cancer Treatment Centre , Rhyl , UK.
Helen Wong1 The Clatterbridge Cancer Centre , Liverpool , UK.
Christopher Rao5 Department of Surgery , University Hospital, Lewisham, London , UK.
Karen Whitmarsh1 The Clatterbridge Cancer Centre , Liverpool , UK.
Raj Sripadam1 The Clatterbridge Cancer Centre , Liverpool , UK.
Paul Rooney3 The Royal Liverpool and Broadgreen University Hospital NHS Trust , Liverpool , UK.
Michael Jeremy Hershman6 New Cross Hospital , Wolverhampton , UK.
Zsolt Fekete7 Prof Dr Ion Chiricuţă Institute of Oncology , Cluj , Romania.
Kate Perkins1 The Clatterbridge Cancer Centre , Liverpool , UK.
D Mark Pritchard2 Institute of Translational Medicine , University of Liverpool , UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveA watch and wait policy for patients with a clinical complete response (cCR) after external beam chemoradiotherapy (EBCRT) for rectal cancer is an attractive option. However, approximately one-third of tumours will regrow, which requires surgical salvage for cure. We assessed whether contact X-ray brachytherapy (CXB) can improve organ preservation by avoiding surgery for local regrowth.

methodsFrom our institutional database, we identified 200 of 573 patients treated by CXB from 2003 to 2012. Median age was 74 years (range 32-94), and 134 (67%) patients were males. Histology was confirmed in all patients and was staged using CT scan, MRI or endorectal ultrasound. All patients received combined CXB and EBCRT, except 17 (8.5%) who had CXB alone.

resultsInitial cCR was achieved in 144/200 (72%) patients. 38/56 (68%) patients who had residual tumour received immediate salvage surgery. 16/144 (11%) patients developed local relapse after cCR, and 124/144 (86%) maintained cCR. At median follow up of 2.7 years, 161 (80.5%) patients were free of cancer. The main late toxicity was bleeding (28%). Organ preservation was achieved in 124/200 (62%) patients.

conclusionOur data suggest that CXB can reduce local regrowth to 11% compared with around 30% after EBCRT alone. Organ preservation of 62% achieved was higher than reported in most published watch and wait studies. Advances in knowledge: CXB is a promising treatment option to avoid salvage surgery for local regrowth, which can improve the chance of organ preservation in patients who are not suitable for or refuse surgery.

Indexed as

AdultAgedAged, 80 and overBrachytherapyCritical PathwaysDisease-Free SurvivalDose-Response Relationship, RadiationEndosonographyFemaleHumansKaplan-Meier EstimateMagnetic Resonance ImagingMaleMiddle AgedNeoplasm Recurrence, LocalOrgan Sparing Treatments

Identifiers

PMID28937269
PMCPMC6047662

What OpenQuestion holds

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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.