Evidence map›Paper›PMID 23774040›Full record

ArticleContemporary clinical trials2013

A multi-centre prospective development study evaluating focal therapy using high intensity focused ultrasound for localised prostate cancer: The INDEX study.

L Dickinson, H U Ahmed, A P Kirkham, C Allen, A Freeman, J Barber, R G Hindley, T Leslie, C Ogden, R Persad and 3 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in Contemporary clinical trials, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 3 pooled it
10.0field-weighted citation impact, top 2% 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

31 citing papers in PubMed, 3 syntheses or guidelines pooled it, 79 citations in OpenAlex.

  1. Pooled it
  2. Primary cryotherapy for localised or locally advanced prostate cancer.The Cochrane database of systematic reviews · 2018
    Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Targeting the cancer lesion, not the whole prostate.Translational andrology and urology · 2020
    Review
  12. Review
  13. Article
  14. Review
  15. Focal Ablation of Prostate Cancer.Reviews in urology · 2018
    Article
  16. Article
  17. Review
  18. Review
  19. Review
  20. Evaluating the Role of mpMRI in Prostate Cancer Assessment.Expert review of medical devices · 2016
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 7 institutions in 1 country.

L DickinsonDivision of Surgery and Interventional Sciences, University College London, UK. Louise.Dickinson@uclh.nhs.uk
H U Ahmed
A P Kirkham
C Allen
A Freeman
J Barber
R G Hindley
T Leslie
C Ogden
R Persad
M H Winkler
M Emberton
INDEX Study Group
University College London Hospitals NHS Foundation Trust · GBUniversity College London · GBChurchill Hospital · GBHampshire Hospitals NHS Foundation Trust · GBImperial College Healthcare NHS Trust · GBRoyal Marsden NHS Foundation Trust · GBUniversity Hospitals Bristol NHS Foundation Trust · GB

Funding

Medical Research Council G0701302Medical Research Council G1002509Prostate Cancer UK G2011/53Wellcome Trust
6 · The paper itself

Abstract

introductionFocal therapy offers the possibility of cancer control, without the side effect profile of radical therapies. Early single centre prospective development studies using high intensity focused ultrasound (HIFU) have demonstrated encouraging genitourinary functional preservation and short-term cancer control. Large multi-centre trials are required to evaluate medium-term cancer control and reproduce functional recovery. We describe the study design of an investigator-led UK multi-centre, single arm trial using HIFU to deliver focal therapy for men with localised prostate cancer.

methodsOne-hundred and forty men with histologically proven localised low or intermediate risk prostate cancer (PSA < 15, Gleason ≤ 7, ≤ T2cN0M0) will undergo precise characterisation of the prostate using a combination of multi-parametric (mp)MRI and transperineal template prostate mapping (TPM) biopsies. Unilateral dominant tumours, the so-called index lesion, will be eligible for treatment provided the contra-lateral side is free of 'clinically significant' disease (as defined by Gleason ≥ 7 or maximum cancer core length ≥4 mm). Patients will receive focal therapy using HIFU (Sonablate 500®). Treatment effect will be assessed by targeted biopsies of the treated area and TPM biopsies at 36-months.

resultsPrimary outcome is the absence of clinically significant disease based on 36-month post-treatment TPM biopsies. Secondary outcomes address a) genitourinary function using validated patient questionnaires (IPSS, IPSS-QoL, IIEF-15, EPIC-Urinary, EPIC-Bowel, FACT-P, EQ-5D), b) the predictive validity of imaging, and c) risk factors for treatment failure.

conclusionsINDEX will be the first multi-centre, medium term follow-up trial to evaluate the outcomes of a tissue preserving strategy for men with localised prostate cancer using the TPM-ablate-TPM strategy.

Indexed as

Research DesignHigh-Intensity Focused Ultrasound AblationHumansMaleProspective StudiesProstate-Specific AntigenProstatic NeoplasmsProstate-Specific AntigenFocal therapyHigh-intensity focused ultrasoundIDEAL guidelinesMulti-centreProspective study

Identifiers

PMID23774040
PMCPMC3779353
OpenAlexW2018779708

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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.