Description:
Colorectal cancer is the third most common tumour in the UK, Netherlands and Denmark with
41000, 14000 and 4000 new cases per year respectively. Standard primary radical Total
Mesorectal Excision (TME) surgery is an oncologically effective treatment for early stage
rectal cancer. However, resection of a low rectal tumour requires a permanent stoma in
approximately 5-10% of cases while many more patients have a temporary stoma, some of which
are not reversed. Radical surgery, which evolved to treat locally advanced, symptomatic
tumours, may not be the optimal method of treatment for early screen-detected tumours and an
organ preserving strategy may generate significantly less morbidity without substantially
compromising oncological outcomes.
TREC was a randomised phase II trial to test the feasibility of randomisation between TME and
an organ preserving policy of short course pre-operative radiotherapy (SCPRT) delay followed
by transanal endoscopic microsurgery (TEM). STAR-TREC is a phase II feasibility study that
will evaluate whether it is possible to accelerate the patient recruitment attained in the
TREC study, to 4 per month in the first year of recruitment and 6 per month in the second.
This would demonstrate deliverability of a phase III study.
Title
- Brief Title: Can the Rectum be Saved by Watchful Waiting or TransAnal Surgery Following (Chemo)Radiotherapy Versus Total Mesorectal Excision for Early REctal Cancer?
- Official Title: STAR-TREC:Can the Rectum be Saved by Watchful Waiting or TransAnal Surgery Following (Chemo)Radiotherapy Versus Total Mesorectal Excision for Early REctal Cancer
Clinical Trial IDs
- ORG STUDY ID:
RG_15-011
- SECONDARY ID:
2016-000862-49
- NCT ID:
NCT02945566
Conditions
- Adenocarcinoma of the Rectum
Interventions
Drug | Synonyms | Arms |
---|
Long course concurrent chemoradiation | | Long course concurrent chemoradiation |
Purpose
Colorectal cancer is the third most common tumour in the UK, Netherlands and Denmark with
41000, 14000 and 4000 new cases per year respectively. Standard primary radical Total
Mesorectal Excision (TME) surgery is an oncologically effective treatment for early stage
rectal cancer. However, resection of a low rectal tumour requires a permanent stoma in
approximately 5-10% of cases while many more patients have a temporary stoma, some of which
are not reversed. Radical surgery, which evolved to treat locally advanced, symptomatic
tumours, may not be the optimal method of treatment for early screen-detected tumours and an
organ preserving strategy may generate significantly less morbidity without substantially
compromising oncological outcomes.
TREC was a randomised phase II trial to test the feasibility of randomisation between TME and
an organ preserving policy of short course pre-operative radiotherapy (SCPRT) delay followed
by transanal endoscopic microsurgery (TEM). STAR-TREC is a phase II feasibility study that
will evaluate whether it is possible to accelerate the patient recruitment attained in the
TREC study, to 4 per month in the first year of recruitment and 6 per month in the second.
This would demonstrate deliverability of a phase III study.
Detailed Description
STAR-TREC is a randomised, three arm (1:1:1) study using the following arms:
1. Standard TME surgery (control)
2. Organ saving using:
1. long course concurrent chemoradiation
2. short course radiotherapy For organ-preserving strategies clinical response to
radiotherapy determines the next treatment step. Radiotherapy response is evaluated
using endoscopy and the tumour regression grade, as assessed by MRI. The first
assessment at 11-13 weeks (from radiotherapy start) using MRI and endoscopy will
identify a minority of non-responders who should convert to TME surgery. Patients
demonstrating a satisfactory radiotherapy response at 11-13 weeks will be
reassessed by endoscopy at 16-20 weeks. Re-evaluation determines if the STAR-TREC
criteria for complete clinical response (cCR) are met. Patients who achieve cCR may
progress directly to active surveillance. Those who do not fulfil the criteria for
cCR will progress to excision biopsy with transanal endoscopic microsurgery (TEM).
Patients in the organ saving arm will be assigned to either;
A. Long course concurrent chemoradiation:
Capecitabine: 825 mg/m² orally, b.i.d., on radiotherapy days Radiotherapy: A dose of 50 Gy,
applied to the primary tumour and surrounding mesorectum, in 25 fractions of 2 Gy, 5 days a
week.
or B. Short course preoperative radiotherapy A dose of 25Gy, applied, to the primary tumour
and surrounding mesorectum in 5 fractions of 5 Gy, 5 days a week.
As a feasibility study, this trial will have recruitment rate as it's primary outcome.
Trial Arms
Name | Type | Description | Interventions |
---|
Standard TME surgery | Active Comparator | Radical total mesorectal excision | |
Long course concurrent chemoradiation | Experimental | Capecitabine: 825 mg/m² orally, b.i.d., on radiotherapy days Radiotherapy: A dose of 50 Gy, applied to the primary tumour and surrounding mesorectum, in 25 fractions of 2 Gy, 5 days a week. | - Long course concurrent chemoradiation
|
Short course radiotherapy | Experimental | A dose of 25Gy, applied, to the primary tumour and surrounding mesorectum in 5 fractions of 5 Gy, 5 days a week. | |
Eligibility Criteria
Inclusion Criteria:
- Biopsy proven adenocarcinoma of the rectum
- mriT1-3bN0 (with ≤5mm of mesorectal invasion) rectal tumour or endorectal ultrasound
defined rectal cancer uT1-uT3b (optional: in centres where high quality ERUS is
available and patient unable to tolerate MRI)
- MDT determines that all of the following treatment options are feasible:
- TME surgery
- CRT
- SCPRT
- TEM Patients with equivocal radiological lesions e.g. mesorectal,
retroperitoneal, liver, lung are eligible if agreed by MDT
- Aged 16 or over in UK (18 or over in the Netherlands and Denmark).
- Pre-(chemo)radiotherapy treatment, the following criteria must be met :
- Estimated creatinine clearance >50 mls/min -Absolute neutrophil count >1.5x109/l;
platelets >100 x 109/L-
- Serum transaminase <3 x Upper Limit Normal/l (ULN)
- Bilirubin <1.5 x ULN
- ECOG performance status 0-1
- If female and of childbearing potential, must:
- Have a negative pregnancy test ≤72hours prior to initiating study treatment
- Agree to avoid pregnancy during and for 6 months after study treatment
- If male with a partner of childbearing potential, must:
- Agree to use adequate, medically approved, contraceptive precautions during and
for 90 days after the last dose of study treatment
- Patient able and willing to provide written informed consent for the study
Exclusion Criteria:
- Unequivocal evidence of metastatic disease (includes resectable metastases) as
determined by
- MRI showing:
- node positive
- extramural vascular invasion (mriEMVI) positive
- defined mucinous tumour
- Maximum tumour diameter > 40mm as measured from everted edges (sagittal)
- Mesorectal fascia threatened (< 1 mm on MRI)
- Tumour position anterior, above the peritoneal reflection on MRI or EUS
- No residual luminal tumour following endoscopic resection
- Contraindications to radiotherapy including previous pelvic radiotherapy
- Uncontrolled cardiorespiratory comorbidity (includes patients with inadequately
controlled angina or myocardial infarction within 6 months prior to randomisation)
- Known dihydropyrimidine dehydrogenase (DPYD) deficiency
- Known Gilberts disease (hyperbilirubinaemia)
- Taking warfarin that cannot be discontinued at least 7 days prior to starting
treatment or substituted by low molecular weight heparin
Maximum Eligible Age: | N/A |
Minimum Eligible Age: | 16 Years |
Eligible Gender: | All |
Healthy Volunteers: | No |
Primary Outcome Measures
Measure: | Year 1: randomise at least 4 cases per month internationally |
Time Frame: | 1 years |
Safety Issue: | |
Description: | randomise at least 4 cases per month internationally (n=48) |
Secondary Outcome Measures
Measure: | Achieve funding from international partners |
Time Frame: | 1 year |
Safety Issue: | |
Description: | assessed through seeing whether the study being carried out internationally |
Measure: | Achieve recruitment from international partners |
Time Frame: | 1 year |
Safety Issue: | |
Description: | assessed through seeing whether the study being carried out internationally |
Measure: | Organ saving rate in the experimental arms at 12 months (from randomisation) |
Time Frame: | 1 year |
Safety Issue: | |
Description: | Percent of relevant organs saved during 12 months |
Measure: | Number of eligible patients undergoing accurately staged TME surgery |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Proportion of eligible patients undergoing accurately staged TME surgery |
Measure: | Number of patients identified by MRI suitable for active monitoring based on mrTRG assessment |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Proportion of patients identified by MRI suitable for active monitoring based on mrTRG assessment |
Measure: | 3 year pelvic failure rate |
Time Frame: | 3 years |
Safety Issue: | |
Description: | defined as the proportion of patients in each arm with:
unresectable pelvic tumor
pelvic tumour requiring beyond TME surgery
≤1mm circumferential resection margin after TME surgery |
Measure: | Overall survival |
Time Frame: | 3 years |
Safety Issue: | |
Description: | Absence of death |
Measure: | Stoma free survival |
Time Frame: | 1 year |
Safety Issue: | |
Description: | Time for randomisation without the need for a stoma |
Measure: | Health related quality of life by EORTC CR29 |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Assessed by EORTC CR29 score |
Measure: | Health related quality of life by EORTC CR30 |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Assessed by EORTC CR30 score |
Measure: | Health related quality of life by EQ-5D score |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Assessed by EQ-5D |
Measure: | Sexual dysfunction |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Measured by LARS |
Measure: | Bowel function |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Measured by LARS |
Measure: | Bladder function |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Measured by LARS |
Measure: | Sexual dysfunction in male patients |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Measured by ICICQ-MLUTS |
Measure: | Bowel function in male patients |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Measured by ICICQ-MLUTS |
Measure: | Bladder function in male patients |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Measured by ICICQ-MLUTS |
Measure: | Sexual dysfunction in female patients |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Measured by ICICQ-FLUTS |
Measure: | Bowel function in female patients |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Measured by ICICQ-FLUTS |
Measure: | Bladder function in female patients |
Time Frame: | 2 years |
Safety Issue: | |
Description: | Measured by ICICQ-FLUTS |
Details
Phase: | Phase 2 |
Primary Purpose: | Interventional |
Overall Status: | Recruiting |
Lead Sponsor: | University of Birmingham |
Last Updated
May 31, 2018