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Rectal CancerPRESERVENCT04103372

Pre-therapeutic MRI Assessment of Early-Stage Rectal Cancer and Significant Rectal Polyps to Avoid Major Resectional Surgery

A study testing MRI scan and Radiologist training in people with Rectal Cancer and Colo-rectal Cancer, run by Imperial College London at 23 sites in United Kingdom.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

When a patient is diagnosed with a rectal (bowel) polyp or cancer, radiology doctors read MRI scans to describe how deeply the cancer invades into the bowel wall (this is the 'stage' of the cancer). In this project, we will teach radiologists to find more early-stage rectal cancers. Read more about this study

Who is it for?
Ages 16 to 100 years
Conditions the study is for
Rectal Cancer, Colo-rectal Cancer
What is being tested?
MRI scan and Radiologist training
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
23 sitesUnited Kingdom
Study dates
1 Sep 2024to 31 Dec 2031
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 16 to 100 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Have a rectal tumour or suspected tumour less than or equal to T3b on MRI stage or pT2 or less after excision, or 20mm or more on endoscopy with suspicion of malignancy
  • Be aged 16 years or over

Who cannot join

  • Have metastatic disease at time of initial staging
  • Have a biopsy-proven rectal malignancy which is not adenocarcinoma
  • Are contraindicated for MRI

Trial locations and contacts

23 sites in 1 country. Contact the study team or a site near you to ask about taking part.

23 sites in 1 country

United Kingdom23 sites, 23 recruiting
  • Buckinghamshire Healthcare Nhs Trust

    Amersham, Buckinghamshire, AMERSHAM

    Principal Investigator, arnold.goede@nhs.net

    Recruiting
  • Hampshire Hospitals Nhs Foundation Trust

    Basingstoke, Hampshire, RG24 9NA

    Principal Investigator, franessco.difabio@hhft.nhs.uk

    Not yet recruiting
  • Frimley Health Nhs Foundation Trust

    Camberley, Surrey, GU16 7UJ

    Principal Investigator, ahmed.nizar@nhs.net

    Not yet recruiting
  • Kent & Canterbury Hospital

    Canterbury, KENT, CT1 3NG

    Principal Investigator, ztsiamoulos@nhs.net

    Not yet recruiting
  • St Helier Hospital

    Carshalton, Surrey, SM5 1AA

    Principal Investigator, ashishgupta@nhs.net

    Not yet recruiting
  • St Marks Bowel Cancer Screening Centre

    Harrow, HA1 3UJ

    Principal Investigator, norikosuzuki@nhs.net

    Not yet recruiting
  • Westmorland General Hospital

    Kendal, Lancashire, LA9 7RG

    Principal Investigator, manaswini.choudhary@mbht.nhs.uk

    Not yet recruiting
  • Kingston Hospital Nhs Foundation Trust

    Kingston upon Thames, Surrey, KT2 7QB

    Principal Investigator, svetlana.balyasnikova@nhs.net

    Not yet recruiting
  • Leicester Royal Infirmary

    Leicester, Leicestershire, LE1 5WW

    Principal Investigator, vikas.shah@uhl-tr.nhs.uk

    Not yet recruiting
  • University College London Hospitals Nhs Foundation Trust

    London, Greater London, NW1 2PG

    Principal Investigator, maira.hameed1@nhs.net

    Not yet recruiting
  • King'S College Hospital Nhs Foundation Trust

    London, Greater London, SE5 9RS

    Principal Investigator, amynhaji@nhs.net

    Not yet recruiting
  • West Middlesex Hospital

    London, Greater London, SW10 9NH

    Principal Investigator, nikhil.pawa@chelwest.nhs.uk

    Not yet recruiting
  • Imperial College Healthcare Nhs Trus

    London, Greater London, W2 1BL

    Principal Investigator, dominicblunt@nhs.net

    Not yet recruiting
  • Maidstone Hospital

    Maidstone, KENT, ME16 9QQ

    Principal Investigator, sukanyaghosh@nhs.net

    Not yet recruiting
  • John Radcliffe Hospital

    Oxford, Oxfordshire, OX3 9DU

    Principal Investigator, Chris.Cunningham@ouh.nhs.uk

    Not yet recruiting
  • Royal Berkshire Hospital

    Reading, Berkshire, RG1 5AN

    Principal Investigator, kum.nhs@googlemail.com

    Not yet recruiting
  • Salisbury District Hospital

    Salisbury, Wiltshire, SP2 8BJ

    Principal Investigator, Graham.Branagan@salisbury.nhs.uk

    Not yet recruiting
  • Southampton General Hospital

    Southampton, Hampshire, SO16 6YD

    Principal Investigator, Nigel.D'souza@uhs.nhs.uk

    Not yet recruiting
  • Nhs Staffordshire and Stoke-on-Trent Integrated Care Board

    Stafford, Staffordshire, ST16 2LP

    Principal Investigator, Ingrid.britton@uhnm.nhs.uk

    Not yet recruiting
  • Tonna Hospital

    Swansea, Wales, SA11 3LX

    Principal Investigator, anil.ghosh@wales.nhs.uk

    Not yet recruiting
  • Croydon Health Services Nhs Trust

    Thornton Heath, Surrey, CR7 7YE

    Principal Investigator, annabel.shaw@nhs.net

    Not yet recruiting
  • St George'S Hospital

    Tooting, London, SW17 0QT

    Principal Investigator, Anita.Wale@stgeorges.nhs.uk

    Not yet recruiting
  • The Hillingdon Hospitals Nhs Foundation Trust

    Uxbridge, Greater London, UB8 3NN

    Principal Investigator, alistair.myers@nhs.net

    Not yet recruiting

Other trials in United Kingdom

About this study

When a patient is diagnosed with a rectal (bowel) polyp or cancer, radiology doctors read MRI scans to describe how deeply the cancer invades into the bowel wall (this is the 'stage' of the cancer). In this project, we will teach radiologists to find more early-stage rectal cancers. These are cancers that have only grown partially into the bowel wall. If we succeed, more patients could have these lesions removed by a local procedure that preserves the bowel and avoids the risks and complications of major surgery.

We have developed a new method for radiology doctors to read MRI scans, which is more accurate than current practice. Currently only 3/10 of early rectal cancers are found by radiologists but by using our MRI reading system, 9/10 patients can be accurately identified as having early rectal cancer. We have proven that we can teach this method to other radiology doctors whose reports help to accurately inform patients of all possible treatment options, so they can be offered the option of a local procedure.

In this initial work we will train radiology doctors in our MRI reading method in 20 hospitals. We will compare MRI reports before and after training to see if an accurate reading method improves treatments choices for patients. We will also determine whether more patients have local procedures after our training. The results of this initial work will help us to apply for national funding for a trial that we can quickly roll out to all NHS hospitals.

Read the detailed description

Many patients diagnosed with Early Rectal Cancer (ERC) are currently over-treated. Most patients with confirmed ERC will undergo an MRI, but some are not correctly identified in endoscopy and immediately removed. Of those who undergo MRI, 69% are over-staged and undergo major surgery or unnecessary radiotherapy when local excision surgery to preserve the patients rectum, and quality of life, would have been possible. <10% of patients with ERC are staged accurately and offered local excision, with the majority who are staged as ERC on MRI still undergoing major surgery, likely due to uncertainty in the staging report.

Prof Gina Brown developed a more accurate radiological staging system (PRESERVE) or ERC, whereby T2 tumours are identified and classified according to the degree of preservation of the individual layers of the rectal wall. It has been shown that PRESERVE enabled better identification of ERC suitable for local excision from the expected 30% to 89% accuracy. This improved accuracy was replicated in a further study by training a cohort of 12 radiologists. It is predicted that wider adoption of PRESERVE will result in increased organ-preserving surgery from the current rates of 10% to >50%.

Being tested
MRI scan, Radiologist training
Keywords
early stage, early phase, Endoscopic Mucosal Resection, Endoscopic Submucosal Dissection, Histopathological Staging, MDT Decision Making, MRI Staging, Quality of Life, Radiotherapy, Rectal preservation, Shared decision making, Significant Rectal Polyps, Transanal Endoscopic Microsurgery, Transanal Minimally Invasive Surgery
Medical subject headings
Rectal Neoplasms, Colonic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MRI scanDiagnostic test

    MRI scans will be recommended for all rectal polyps ≥20mm in size, or with other features suspicious of malignancy, prior to removal. This is designed to reduce the numbers of Early Rectal Cancers missed in endoscopy.

  • Radiologist trainingOther

    Radiologist training in the use of the PRESERVE mrSRT for suspected Early Rectal Cancer.

Study groups in NCT04103372
Study groupRoleWhat they receive
Control Arm ScheduleNo interventionAll sites will begin in the Control arm, with patients recruited to the Control Arm Schedule. Clinical investigations prior to treatment, during treatment, after surgery and during further treatment should be performed as per standard clinical practice and as clinically indicated. Each site will transition to the Intervention arm at a month prescribed by their randomised cluster, and from that point patients are recruited to the Intervention Arm Schedule . Patients will be recruited to either the Control or Intervention arms dependent on which arm is in progress at the site at the time of recruitment. There will be no crossover of patients between the arms at any point.
Intervention Arm ScheduleExperimentalEach site will transition to the Intervention arm at a month prescribed by their randomised cluster, and from that point patients are recruited to the Intervention Arm Schedule . The transition period lasts one month during which recruitment is halted and two interventions implemented: 1. MRI scans will be recommended for all rectal polyps ≥20mm in size, or with other features suspicious of malignancy, prior to removal. This is designed to reduce the numbers of Early Rectal Cancers missed in endoscopy. 2. Radiologist training in the use of the PRESERVE mrSRT for suspected Early Rectal Cancer. Patients will be recruited to either the Control or Intervention arms dependent on which arm is in progress at the site at the time of recruitment. There will be no crossover of patients between the arms at any point.
Receives: Diagnostic Test: MRI scan; Other: Radiologist training

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Impact of a training intervention on the accuracy of the tumour staging diagnosis through systematic reporting approach to MRI scans against current (pre intervention) practice.

    Comparison of the proportion of patients with early rectal cancer who are diagnosed by pathology vs those staged as such by MRI, before and after the intervention.

    Measured: 1 year

Secondary outcomes (18)
  1. Proportion of patients with technically adequacate scans before and after intervention

    Proportion of patients scanned with high resolution MR in the correct planes

    Measured: 1 year

  2. Proportion of primary tumour characterised by morphology and other features associated with malignancy before and after intervention

    Proportion of reports where primary tumour has been characterised by morphology before and after intervention in i) endoscopy, ii) radiology reports before and after intervention

    Measured: 1 year

  3. Proportion of MRI reports with T substage given before and after intervention

    Proportion of reports where T substage of primary tumour has been recorded before and after intervention

    Measured: 1 year

  4. Number of patients identified on imaging as suitable for rectal preservation by local excision

    Proportion of imaging reports where suitable patients are identified on the report as suitable for rectal preservation by local excision being identified by the radiologist on the report before and after intervention

    Measured: 1 year

  5. Number of patients identified by MDT as suitable for rectal preservation by local excision

    Proportion of MDT decisions where patients suitable for rectal preservation by local excision are identified and comparison of treatments offered to patients by the MDT, before and after the intervention

    Measured: 1 year

  6. Correlation of accuracy in the identification of safe plane of excision for rectal preservation by the radiologist

    Proportion of patients with >1mm muscularis preserved on histopathology identified as such by the radiologist before and after intervention Proportion of patients with >1mm submucosa preserved on histopathology identified as such by the radiologist before and after intervention Proportion of patients undergoing TME that have <1mm muscularis preserved on histopathology identified as such by the radiologist before and after intervention

    Measured: 1 year

  7. Numebr of patients with R0 by local excision or TME as appropriate

    Proportion of patients with R0 that have >1mm muscularis preserved on histopathology identified as such by the radiologist before and after intervention Proportion of patients with R0 that have>1mm submucosa preserved on histopathology identified as such by the radiologist before and after intervention Proportion of patients undergoing TME with R0 that have <1mm muscularis preserved on histopathology identified as such by the radiologist before and after intervention

    Measured: 1 year

  8. Qualitative EORTC QLQ-CR29 Questionnaire on Quality of Life of patients undergoing local excision vs major surgery

    Comparison of QoL EORTC QLQ-CR29 scores before and after intervention. Questions relate to difficulty in performing every day tasks answers are rated 'Not at all' 'A Little' 'Quite a Bit' 'Very Much'

    Measured: 1 year, 3 years, 5 years

  9. Qualitative EORTC QLQ-CR30 Questionnaire on Quality of Life of patients undergoing local excision vs major surgery

    Comparison of QoL EORTC QLQ-CR30 scores before and after intervention. Questions relate to the presences of symptoms over the previous week answers are rated 'Not at all' 'A Little' 'Quite a Bit' 'Very Much'

    Measured: 1 year, 3 years, 5 years

  10. Qualitative LARS Questionnaire on Quality of Life of patients undergoing local excision vs major surgery

    Comparison of LARS scores before and after intervention. Questions relate to bowel function answers are rated 'Not at all' 'A Little' 'Quite a Bit' 'Very Much'

    Measured: 1 year, 3 years, 5 years

  11. Qualitative Questionnaire on Quality of Life of patients undergoing local excision vs major surgery

    Comparison of self evaluation of overall health and quality of life scores before and after intervention. Answers are rated from 1 very poor to 7 excellent

    Measured: 1 year, 3 years, 5 years

  12. Comparison of total costs of procedures performed between patients undergoing local excision surgery to those undergoing major surgery

    Comparison of total costs of hospital procedures performed based on individual pathways before and after intervention

    Measured: 1 year

  13. Comparison of inpatient costs between patients undergoing local excision surgery to those undergoing major surgery

    Comparison of cost of inpatient episodes based on individual pathways before and after intervention

    Measured: 1 year

  14. Comparison of total cost of outpatient visits between patients undergoing local excision surgery to those undergoing major surgery

    Comparison of total cost of outpatient episodes based on individual pathways before and after intervention

    Measured: 1 year

  15. Comparison of total community costs between patients undergoing local excision surgery to those undergoing major surgery

    Comparison of total cost of treatments delivered in the community based on individual pathways before and after intervention

    Measured: 1 year

  16. Number of patients without disease and/or without stoma between patients undergoing local excision surgery, compared to those undergoing major surgery

    DFS and stoma free survival in patients based on individual pathways before and after intervention

    Measured: 1 year, 3 years, 5 years

  17. Assessment results for the effectiveness of mrSRT after a year from training

    Determine longevity of training by assessment of radiologists trained with the PRESERVE mrSRT accuracy 1 year after training

    Measured: 1 year

  18. Identification of histopathological biomarkers to improve selection of patients who can undergo rectal preserving strategies for Early Recal Cancer

    Comparison of relative % histopathological biomarkers screening panels between patients identified on imaging as suitable for rectal preservation by local excision being identified by the radiologist on the report before and after intervention

    Measured: 2 months, 1 year, 3 years, 5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Sep 2019
  2. Study start1 Sep 2024
  3. Primary completion31 Dec 2026 (estimated)
  4. Study completion31 Dec 2031 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Randomised
Intervention model
Crossover
Model description
Multicentre, stepped-wedge cluster randomised trial. This pilot study will run for 9 months and utilise a stepped wedge cluster randomised controlled trial design (including transition period). Sites will enter data from the diagnostic and treatment pathways of all rectal cancer patients who are eligible for primary surgical treatment, eg those radiologically staged as less than or equal to T3b or with confirmed as less than or equal to pT2N0 pathological staging. Prior to the trial opening the participating sites will be randomly allocated a number, which will determine the number of months the site will remain in the control and then subsequently the intervention phase of the trial.
Masking
None (open label)
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04103372
Sponsor's protocol ID
DOCUMAS 24HH8769
Acronym
PRESERVE
Status last verified
Oct 2024
First submitted
5 Sep 2019
Last updated
4 Nov 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Detering R, van Oostendorp SE, Meyer VM, van Dieren S, Bos ACRK, Dekker JWT, Reerink O, van Waesberghe JHTM, Marijnen CAM, Moons LMG, Beets-Tan RGH, Hompes R, van Westreenen HL, Tanis PJ, Tuynman JB; Dutch ColoRectal Audit Group*. MRI cT1-2 rectal cancer staging accuracy: a population-based study. Br J Surg. 2020 Sep;107(10):1372-1382. doi: 10.1002/bjs.11590. Epub 2020 Apr 16.

    PubMed 32297326
  • Balyasnikova S, Read J, Wotherspoon A, Rasheed S, Tekkis P, Tait D, Cunningham D, Brown G. Diagnostic accuracy of high-resolution MRI as a method to predict potentially safe endoscopic and surgical planes in patients with early rectal cancer. BMJ Open Gastroenterol. 2017 Aug 14;4(1):e000151. doi: 10.1136/bmjgast-2017-000151. eCollection 2017.

    PubMed 29259791

Questions about this trial

What is this clinical trial studying?

A study testing MRI scan and Radiologist training in people with Rectal Cancer and Colo-rectal Cancer, run by Imperial College London at 23 sites in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 4 Nov 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 23 sites in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Caroline Martin (+44 (0) 7749 655 817, c.martin1@imperial.ac.uk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Impact of a training intervention on the accuracy of the tumour staging diagnosis through systematic reporting approach to MRI scans against current (pre intervention) practice. (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04103372, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Nov 2024.

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