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A feasibility trial to evaluate the use of an an imaging biomarker called magnetic resonance tumour regression grade (mrTRG) to identify and manage good and poor responders to chemoradiotherapy for use in patients with rectal (bowel) cancer.

Magnetic Resonance Tumour Regression Grade (mrTRG) as a Novel Biomarker to Stratify Management of Good And Poor Responders To Chemoradiotherapy: A Rectal Cancer Multicentre Randomised Control Trial - TRIGGER Trial Version 1.0

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2015-003009-40-GB
Enrollment
90
Registered
2015-10-13
Start date
2015-12-18
Completion date
Unknown
Last updated
2016-04-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rectal cancer MedDRA version: 18.0 Level: PT Classification code 10061758 Term: Chemotherapy System Organ Class: 10042613 - Surgical and medical procedures MedDRA version: 18.0 Level: PT Classification code 10061451 Term: Colorectal cancer System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) MedDRA version: 18.0 Level: PT Classification code 10068093 Term: Gastrointestinal surgery System Organ Class: 10042613 - Surgical and medical procedures

Interventions

Product Name: Capecitabine Pharmaceutical Form: Coated tablet INN or Proposed INN: Capecitabine 150mg film coated tablets CAS Number: 154361-50-9 Other descriptive name: CAPOX Regimen (if combined wit

Sponsors

Royal Marsden NHS Foundation Trust
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Have a biopsy-confirmed adenocarcinoma 0-15cm from the anal verge (on MRI or rigid sigmoidoscopy) 2) Have locally Advanced Rectal Carcinoma diagnosed by MRI (mrCRM unsafe or =mrT3c [>5mm beyond muscularis propria] or mrEMVI positive disease) 3) Be deemed to require chemoradiotherapy 4) Scheduled to receive 45Gy - 55Gy long course radiotherapy 5) Be aged 18 years or over. Are the trial subjects under 18? no Number of subjects for this age range: 0 F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 45 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 45

Exclusion criteria

Exclusion criteria: 1) Have metastatic disease (including resectable liver metastases) 2) Are contraindicated for MRI eg. non-mr compatable hip prosthesis, cardiac pacemaker 3) Are scheduled to receive less than 45Gy or more than 55Gy long course radiotherapy 4) Are contraindicated for chemoradiotherapy (CRT) or systemic chemotherapy 5) Are receiving or planned to receive treatment outside of that stipulated by the protocol,such as an alternative cytotoxic or investigational drug. 6) Are pregnant, breastfeeding or unable / unwilling to comply with pregnancy prevention guidelines 7) Any other malignant disease within the preceding 5 years with the exception of non- melanomatous skin cancer, carcinoma in situ and early stage disease with <5% recurrence risk

Design outcomes

Primary

MeasureTime frame
Main Objective: A trial for patients with rectal cancers that require chemotherapy and radiotherapy (CRT) before surgery. The trial investigates whether the MRIs that are already performed can be used in a smarter way to give a better idea of whether the tumour has responded to the chemotherapy and radiotherapy. In the control arm patients will follow best current practice. In the intervention arm treatment will be tailored according to CRT response assessed using MRI. The good response group will be offered deferral of surgery (non operative management). The poor response group will be offered a change in the timing of chemotherapy, as we believe that offering half of the chemotherapy prior to surgery will shrink the tumour further and increase the likelihood of complete surgical removal. The principal objective of this feasibility trial is to assess patient recruitment rate. Once 90 patients have been recruited we intend to proceed to a planned larger Phase III trial of approximately 630 ;Secondary Objective: 1) to evaluate the safety of the MRI-directed management approach by comparing the incidence of incomplete surgical removal of the cancer between groups. The rate of inoperable growth in patients managed by deferral of surgery will also be considered. 2) to evaluate toxicity and morbidity - we will compare the number and severity of complications relating to surgery and chemotherapy. 3) to assess quality of life 4) to evaluate the agreement and reproducibility of measurements of magnetic resonance tumour regression grade (mrTRG) by the recruiting radiologists (please note a site will not be able to open until the allocated radiologist has demonstrated they can perform MRI scans according to a published protocol and, for measurements of mrTRG, achieve a high Kappa agreement of 0.7 or more).;Primary end point(s): Total number of patients randomised per month during the last 4 months of recruitment;Timepoint(s) of evaluation of this end point: 10 months

Secondary

MeasureTime frame
Secondary end point(s): • The pCRM rate will be compared between the control and investigation arms. • The strength of agreement of the reported mrTRG will be evaluated between the site radiologist versus the central radiologist at site initiation and at the end of the recruitment phase of feasibility trial. • Acute toxicity will be recorded to CTCAE v4.0 protocol. The grade 3- 5 adverse events will be compared between the control and intervention arms on an intention to treat basis. • Early (30 day) and late (up to 12 months) surgical morbidity will be reported according to the Clavien-Dindo classification • Quality of surgery will be determined by using the mesorectal grading system and a similar system will be used for grading the quality of APE specimens ;Timepoint(s) of evaluation of this end point: pCRM rate - at time of surgery Strength of agreement mrTRG - site initiation and end of recruitment period of feasibility trial. Acute toxicity - at time of chemotherapy Surgical morbidity - 30 days and 12 months post surgery Quality of surgery - at time of surgery when histopathology analysis performed

Countries

Brazil, Canada, Cyprus, Italy, United Kingdom, United States

Contacts

Public ContactMichelle Frost

Royal Marsden NHS Foundation Trust

michelle.frost@rmh.nhs.uk0208 915 6067

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026