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Rectal AdenocarcinomaORRECNCT04090450

Optimisation of Radiotherapy in Rectal Cancer (ORREC)

An observational study of Rectal Adenocarcinoma, run by University of Manchester at 1 site in United Kingdom.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This is a retrospective study using images acquired routinely for diagnosis of rectal cancer to see if these could be used to predict responses to radiotherapy treatment and if it can, whether the treatment can be optimised to produce better outcome for patients. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Rectal Adenocarcinoma
What is being tested?
chemo-radiotherapy
Type of treatment
Surgery or procedure
How many people
1,500 participants
Where
1 siteUnited Kingdom
Study dates
23 Sep 2019to 31 Mar 2021
Phase
Observational
Are there results?
None posted in the registry

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 18 years and older
  • All sexes
  • Adult, Older adult

Study population: Patients who are treated with neo-adjuvant chemo-radiotherapy recruited from the clinical data of the Christie Hospital NHS databases

Who may be able to join

  • Histologically confirmed rectal adenocarcinoma.
  • Received pelvic radiotherapy (+/- chemotherapy) as neo-adjuvant treatment
  • Age 18 and above

Who cannot join

  • Other rectal pathologies.
  • Patients less than 18yrs at diagnosis.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Christie Hospital NHS Foundation Trust

    Manchester, England, M20 4BX

    Peter Mbanu, 01619183422, peter.mbanu@postgrad.manchester.ac.uk

Other trials in United Kingdom

About this study

Official title: Optimisation of Radiotherapy to Achieve Increased Organ Preservation in Rectal Cancer (ORREC)

This is a retrospective study using images acquired routinely for diagnosis of rectal cancer to see if these could be used to predict responses to radiotherapy treatment and if it can, whether the treatment can be optimised to produce better outcome for patients. Using a clinical database, patients who have had neo-adjuvant chemo-radiotherapy will be recruited, their diagnostic images and radiotherapy planning scan will be obtained. By use of imaging registration and clinical information, the question of why some patients respond well to radiotherapy and some don't could be answered.

Read the detailed description

The treatment of locally advanced rectal cancer is primarily radiotherapy (+/- chemotherapy) followed by surgery. The reason for radiotherapy is to reduce the risk of recurrence after surgery or to shrink the tumour first so that when surgery is done all the cancer will be successfully removed otherwise some will be left behind to grow. More than 80% of patients require a stoma after their surgery, some get reversed by two years after surgery but a third has it lifelong. About 15% of patients after radiotherapy have no disease left (clinical complete response) and can be monitored closely after radiotherapy and will not need to have surgery or stoma. Surgery carries a risk of death and complications, having a stoma have a lot of complications and have an effect on patient's quality of life, most end up not going out much and withdraws from friends and family due to the risk of accidents in public places. This study is aimed at looking at ways to increase the number of patients that do not require surgery after radiotherapy by looking at the differences between those that responded well to radiotherapy and the ones that did not by comparing their diagnostic and treatment scans. The main question to answer is why some patients have complete response to radiotherapy and others don't. Is there a way to increase the number of these patients through changes in radiotherapy? The study will be looking at the diagnostic images and radiotherapy planning scans to compare these two groups. Is there a way of predicting who will respond to radiotherapy treatment? If there is, modifications could be made to the type of treatment given. This study will be looking to radiomics techniques to develop this. This retrospective study will only make use of scans that patients have already had for their diagnosis and treatment so no patient intervention is required. Patients will be recruited using the clinical and research database of the Christie hospital which is the largest cancer centre in the UK. The study is funded by the charitable fund of the Christie Hospital NHS Foundation Trust.

Being tested
chemo-radiotherapy
Medical subject headings
Rectal Neoplasms

What participants receive

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

  • chemo-radiotherapyRadiation

    The study will not have a direct intervention. It will recruit patients who have had chemo-radiation as part of their standard of care treatment for rectal cancer.

What is being measured

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

  1. Radiotherapy volumes (cm^3)

    The volume that receives radiotherapy treatment.

    Measured: 24 months

  2. Radiotherapy dose distribution (Gy/cm^3)

    Radiotherapy dose delivered to a given volume

    Measured: 24 months

  3. MR radiomics extracted features.

    Distinctive qualitative pixel features that can be extracted from area of disease in radiological images.

    Measured: 24 months

Timeline

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

  1. First posted16 Sep 2019
  2. Study start23 Sep 2019 (estimated)
  3. Primary completion1 Apr 2020 (estimated)
  4. Study completion31 Mar 2021 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
1,500 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04090450
Sponsor's protocol ID
IRAS 265989
Acronym
ORREC
Status last verified
Sep 2019
First submitted
11 Sep 2019
Last updated
16 Sep 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Rectal Adenocarcinoma, run by University of Manchester at 1 site 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 3 inclusion and 2 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: status not confirmed, as of the sponsor's last update on 16 Sep 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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?

Results are not available in the source record.

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

Contact Peter Mbanu (01619183422, peter.mbanu@postgrad.manchester.ac.uk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Radiotherapy volumes (cm^3) (time frame: 24 months). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 16 Sep 2019.

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