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Rectal CancerNCT05374044

Establishment of MRI Model for pTRG in Rectal Cancer With Establishment of

An observational study of Rectal Cancer, run by Peking University Cancer Hospital & Institute at 3 sites in China.

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 The sponsor has not verified this record for over two years, so it may be out of date.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 study proposeto integrate a variety of imaging quantitative indicators to establish a new MRI-based tumor response regression(mrTRG) classification method. The accuracy of the established mrTRG classification method according pathology TRG(pTRG) will be tested. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Rectal Cancer
What is being tested?
pelvic MRI for establishing new mrTRG method
How many people
385 participants
Where
3 sitesChina
Study dates
18 May 2020to 31 Dec 2025
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
  • No healthy volunteers
  • Adult, Older adult

Study population: biopsy-proved primary locally advanced rectal adenocarcinoma(cT3 and/or cN+)

Who may be able to join

  • biopsy-proved primary rectal cancer
  • baseline MRI confirmed LARC (cT3 and/or cN+)
  • scheduled to take neoadjuvant therapy
  • receive baseline and preoperative pelvic MRI
  • receive TME surgery after NAT
  • have routine follow-up after the operation

Who cannot join

  • history of malignancy or multiple primary cancers
  • receive surgery directly without NAT
  • don't receive TME surgery
  • don't complete NAT
  • simultaneous distant metastasis at the baseline diagnosis
  • lack of baseline or preoperative pelvic MRI
  • incomplete or unavailable pathological information
  • lost to follow-up within three months after surgery (lost since the first follow-up visit)

Trial locations and contacts

3 sites in 1 country.

China3 sites
  • Chinese PLA General Hospital

    Beijing, Beijing Municipality, 100039

  • Beijing Cancer Hospital

    Beijing, Beijing Municipality, 100142

  • Peking University Shougang Hospital

    Beijing, Beijing Municipality, 100142

Other trials in China

About this study

Official title: Establishment of a Quantified Imaging Method for Evaluating Tumor Response Grade in Rectal Cancer Patient With Neoadjuvant Therapy: a Multi-center Study

This study proposeto integrate a variety of imaging quantitative indicators to establish a new MRI-based tumor response regression(mrTRG) classification method. The accuracy of the established mrTRG classification method according pathology TRG(pTRG) will be tested. The ability of the established mrTRG classification method to predict prognosis will also be tested.

Read the detailed description

The study included two part: one is a retrospective single-center cohort for analyzing quantitative MRI factors associated with pTRG, from which a new MRI-based tumor response regression(mrTRG) classification method will be established. The other is a prospective multi-center cohort for testing the accuracy of the established mrTRG classification according to pTRG; and also for validating the established mrTRG classification associated with survival.

Conditions
Rectal Cancer
Being tested
pelvic MRI for establishing new mrTRG method
Keywords
rectal cancer, neoadjuvant therapy
Medical subject headings
Rectal Neoplasms

What participants receive

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

  • pelvic MRI for establishing new mrTRG methodDiagnostic test

    they will received two pelvic MR examinations before and after neoadjvant therapy. The MRI before neoadjvant therapy is considered as baseline MRI, which is usually taken within 3 weeks before NAT. The MRI after neoadjvant therapy is considered as preoperative MRI, which is usually taken within 3-8 weeks before NAT.

Study groups in NCT05374044
Study groupRoleWhat they receive
rectal cancer with NATThe patients are planned to receive neoadjvant therapy, and then receive radical surgery.
Receives: Diagnostic Test: pelvic MRI for establishing new mrTRG method

What is being measured

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

  1. pathological tumor regression grade(pTRG)

    pTRG is evaluated according to the AJCC system. pTRG0-1 is defined as good response, pTRG2 as moderate response, and pTRG3 as poor response. The pTRG is judged by two experienced pathologists working together. If there are any discrepancies, then a third senior pathologist is consulted for arbitration. there were any discrepancies, then a third senior pathologist was consulted. there were any discrepancies, then a third senior pathologist was consulted.

    Measured: within 2 weeks after surgery

Secondary outcomes (3)
  1. distant metastasis

    Distant metastastic lesion detected by follow-up CT which will be performed every 3 month for the first two year and every 6 month since the third year

    Measured: 3 years from the data of surgery

  2. Death

    all cause death

    Measured: 3 years from the data of surgery

  3. local recurrence

    Measured: 3 years from the data of surgery

Timeline

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

  1. First posted13 May 2022
  2. Study start18 May 2020
  3. Primary completion30 Apr 2023
  4. Study completion31 Dec 2025 (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
Prospective
Enrolment
385 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05374044
Sponsor's protocol ID
SF2020-1-2151
Status last verified
Jun 2023
First submitted
14 Dec 2021
Last updated
22 Jun 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Rectal Cancer, run by Peking University Cancer Hospital & Institute at 3 sites in China.

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 6 inclusion and 8 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 22 Jun 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in China. 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?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

pathological tumor regression grade(pTRG) (time frame: within 2 weeks after surgery). 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 22 Jun 2023.

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