Colorectal CarcinomaNCT03001362
Patients With Rectal Cancer: a "Wait-and-see" Approach
A study testing Radical external beam radiotherapy in people with Colorectal Carcinoma, run by McGill University Health Centre/Research Institute of the McGill University Health Centre at 2 sites in Canada.
Trial summary
Patients with histologically proven adenocarcinoma of the rectum will receive pelvic radiotherapy to a dose of 45Gy in 25 fractions with a tumor boost to a dose of 9Gy in 5 fractions (thus total of 54Gy/30Fx to the primary tumor), combined with radio sensitizing chemotherapy. Read more about this study
- Who is it for?
- Ages 18 to 90 years
- Conditions the study is for
- Colorectal Carcinoma
- What is being tested?
- Radical external beam radiotherapy
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 48 participants
- Where
- 2 sitesCanada
- Study dates
- Mar 2015to Jan 2026
- 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 18 to 90 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Pelvic MRI defined disease (at least one of the following):
- mesorectum involved or breached - includes involvement of adjacent organ (s) (T3-T4)
- involvement of muscularis propria (T2)
- extra-mural vascular invasion
- tumour deposit within the mesorectum
- one or more involved mesorectal lymph node
Show all 16Show fewer
- Patients are considered medically fit for oncologic resection
- ECOG performance status 0 or 1
- No evidence of established metastatic disease (CT chest and abdomen)
- Absolute neutrophil count >1.5x109/L; platelets >100x109/L,
- Serum transaminase <3 x ULN;
- Adequate renal function (Cockroft Gault estimation >50 mL/min)
- Bilirubin <1.5 x ULN
- Ability to comply with oral medication
- Willingness and ability to give informed consent and comply with treatment and follow up schedule
- Age 18 or over
Who cannot join
- Previous radiotherapy to the pelvis (including brachytherapy)
- Enlarged extramesorectal nodes
- Uncontrolled cardiorespiratory comorbidity (includes patients with inadequately controlled angina or myocardial infarction within 6 months of randomisation)
- T1N0 disease without extra-mural venous invasion
- Unequivocal evidence of metastatic disease (includes resectable metastases)
- Major impairment of bowel function without defunctioning stoma/ileostomy (baseline grade 3 diarrhoea or clinically significant faecal incontinence)
Show all 13Show fewer
- History of another malignancy within the last 5 years except successfully treated basal cell cancer of skin or carcinoma in situ of uterine cervix.
- Known dihydropyrimidine dehydrogenase deficiency
- Known Gilberts disease (hyperbilirubinaemia)
- Taking warfarin or phenytoin or sorivudine
- Gastrointestinal disorder which would interfere with oral therapy and its bioavailability
- Pregnant, lactating, or pre-menopausal women not using adequate contraception
- Unfit to receive any study treatment or subsequent surgical resection
Trial locations and contacts
2 sites in 1 country. Contact the study team or a site near you to ask about taking part.
Canada2 sites, 2 recruiting
- Recruiting
McGill University Health Center-Cedars Cancer Centre
Montreal, Quebec, H4A 3J1
Marianna Perna, CCRP,CCRC, 514-934-1934 ext. 43191, marianna.perna@muhc.mcgill.ca
Tatiana Carvalho, CCRP, 514-934-1934 ext. 43698, tatiana.carvalho@muhc.mcgill.ca
- Recruiting
McGill University Health Centre- Cedars Cancer Centre
Montreal, Quebec, H4A 3J1
Neil Kopek, M.D., 514-934-4440, neil.kopek@muhc.mcgill.ca
Marianna Perna, CCRP, CCRC, 514-934-1934 ext. 43191, marianna.perna@muhc.mcgill.ca
About this study
Official title: Radical External Beam Chemoradiation in Patients With Rectal Cancer: a "Wait-and-see" Approach
Patients with histologically proven adenocarcinoma of the rectum will receive pelvic radiotherapy to a dose of 45Gy in 25 fractions with a tumor boost to a dose of 9Gy in 5 fractions (thus total of 54Gy/30Fx to the primary tumor), combined with radio sensitizing chemotherapy. Patients will then be closely monitored, through endoscopy and imaging, for response to treatment and relapse. Salvage oncologic surgery to be offered if there is failure to achieve complete clinical response or in the event of a loco regional relapse.
Read the detailed description
The combination of preoperative (chemo)radiotherapy and total mesorectal excision (TME) has been shown to reduce the risk of local recurrence in patients with resectable adenocarcinoma of the rectum. The improved local control rates come at the price of an increased risk of surgical complications, including a postoperative death rate of 2-8 percent which may reach 30 per cent at 6 months in those aged over 85 years, as well as long-term impact on anorectal, urinary and sexual function. Patients with cancers in the low rectum in close proximity to the sphincter muscles, may require a permanent stoma, which can be associated with high psychological morbidity.
Preoperative chemoradiotherapy followed by a delay to resection can produce pathological complete responses. One review of phase II and III studies identified an overall pCR rate of 13.5%, but even higher rates of pCR have been observed with doses of radiotherapy exceeding 45 Gy . Certainly patients who proceed to radical surgery after achieving a pCR with chemo radiation do have favorable long-term outcomes. But do patients whose tumor has already been sterilized by chemo radiotherapy need to proceed with radical surgery?
A number of studies have now emerged highlighting the rationale of a 'wait and see' policy for patients who achieve a complete clinical response (cCR) after chemo radiotherapy. The majority of the clinical data supporting this approach have come from Brazil. The Brazilian data suggests that observation of such patients yields survival rates similar to those of patients who undergo radical surgery with confirmation of pCR. More recent studies from the United Kingdom and the Netherlands appear to support the feasibility of this approach. To date there is no published prospectively collected data of a wait-and-see policy from a North American Centre.
- Conditions
- Colorectal Carcinoma
- Being tested
- Radical external beam radiotherapy
- Medical subject headings
- Colorectal Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Radical external beam radiotherapyRadiation
Also called Radiosensitizing chemotherapy
pelvic radiotherapy to a dose of 45 Gy in 25 fractions with a tumor boost to a dose of 9 Gy in 5 fractions (thus total of 54 Gy/30 fractions to the primary tumor), combined with radio sensitizing chemotherapy.
| Study group | Role | What they receive |
|---|---|---|
| Radical External Beam RT for Colorectal Ca | Experimental | A single arm consisting of: Radical external beam RT dose of 54 Gy in 30fx with radiosensitizing chemotherapy as per institutional standard Receives: Radiation: Radical external beam radiotherapy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Feasibility of a "wait and see" approach
Rate of failure to achieve CR or the rate of recurrence after achieving CR
Measured: One year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Dec 2016 (estimated)
- Study startMar 2015
- Primary completion31 Jul 2025 (estimated)
- Study completionJan 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (24)Papers the sponsor has linked to this study.
- Other trials for Colorectal CarcinomaStudies of the same condition, open and under way.
- More trials run by McGill University Health Centre/Research Institute of the McGill University Health CentreThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 48 participants (estimated)
Sponsor and investigators
- Lead sponsor
- McGill University Health Centre/Research Institute of the McGill University Health Centre
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Neil Kopek, McGill University Health Centre/Research Institute of the McGill University Health Centre
- Investigators
- Neil Kopek, M.D., Principal investigator, Radiation Oncologist
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03001362
- Sponsor's protocol ID
- 14-407 GEN
- Status last verified
- May 2025
- First submitted
- 14 Dec 2016
- Last updated
- 15 May 2025
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Publications
Bosset JF, Collette L, Calais G, Mineur L, Maingon P, Radosevic-Jelic L, Daban A, Bardet E, Beny A, Ollier JC; EORTC Radiotherapy Group Trial 22921. Chemotherapy with preoperative radiotherapy in rectal cancer. N Engl J Med. 2006 Sep 14;355(11):1114-23. doi: 10.1056/NEJMoa060829.
PubMed 16971718Gerard JP, Conroy T, Bonnetain F, Bouche O, Chapet O, Closon-Dejardin MT, Untereiner M, Leduc B, Francois E, Maurel J, Seitz JF, Buecher B, Mackiewicz R, Ducreux M, Bedenne L. Preoperative radiotherapy with or without concurrent fluorouracil and leucovorin in T3-4 rectal cancers: results of FFCD 9203. J Clin Oncol. 2006 Oct 1;24(28):4620-5. doi: 10.1200/JCO.2006.06.7629.
PubMed 17008704Peeters KC, Marijnen CA, Nagtegaal ID, Kranenbarg EK, Putter H, Wiggers T, Rutten H, Pahlman L, Glimelius B, Leer JW, van de Velde CJ; Dutch Colorectal Cancer Group. The TME trial after a median follow-up of 6 years: increased local control but no survival benefit in irradiated patients with resectable rectal carcinoma. Ann Surg. 2007 Nov;246(5):693-701. doi: 10.1097/01.sla.0000257358.56863.ce.
PubMed 17968156Sauer R, Becker H, Hohenberger W, Rodel C, Wittekind C, Fietkau R, Martus P, Tschmelitsch J, Hager E, Hess CF, Karstens JH, Liersch T, Schmidberger H, Raab R; German Rectal Cancer Study Group. Preoperative versus postoperative chemoradiotherapy for rectal cancer. N Engl J Med. 2004 Oct 21;351(17):1731-40. doi: 10.1056/NEJMoa040694.
PubMed 15496622Sebag-Montefiore D, Stephens RJ, Steele R, Monson J, Grieve R, Khanna S, Quirke P, Couture J, de Metz C, Myint AS, Bessell E, Griffiths G, Thompson LC, Parmar M. Preoperative radiotherapy versus selective postoperative chemoradiotherapy in patients with rectal cancer (MRC CR07 and NCIC-CTG C016): a multicentre, randomised trial. Lancet. 2009 Mar 7;373(9666):811-20. doi: 10.1016/S0140-6736(09)60484-0.
PubMed 19269519van Gijn W, Marijnen CA, Nagtegaal ID, Kranenbarg EM, Putter H, Wiggers T, Rutten HJ, Pahlman L, Glimelius B, van de Velde CJ; Dutch Colorectal Cancer Group. Preoperative radiotherapy combined with total mesorectal excision for resectable rectal cancer: 12-year follow-up of the multicentre, randomised controlled TME trial. Lancet Oncol. 2011 Jun;12(6):575-82. doi: 10.1016/S1470-2045(11)70097-3. Epub 2011 May 17.
PubMed 21596621Borowski DW, Bradburn DM, Mills SJ, Bharathan B, Wilson RG, Ratcliffe AA, Kelly SB; Northern Region Colorectal Cancer Audit Group (NORCCAG). Volume-outcome analysis of colorectal cancer-related outcomes. Br J Surg. 2010 Sep;97(9):1416-30. doi: 10.1002/bjs.7111.
PubMed 20632311Paun BC, Cassie S, MacLean AR, Dixon E, Buie WD. Postoperative complications following surgery for rectal cancer. Ann Surg. 2010 May;251(5):807-18. doi: 10.1097/SLA.0b013e3181dae4ed.
PubMed 20395841Rutten HJ, den Dulk M, Lemmens VE, van de Velde CJ, Marijnen CA. Controversies of total mesorectal excision for rectal cancer in elderly patients. Lancet Oncol. 2008 May;9(5):494-501. doi: 10.1016/S1470-2045(08)70129-3.
PubMed 18452860Bujko K, Nowacki MP, Nasierowska-Guttmejer A, Michalski W, Bebenek M, Kryj M. Long-term results of a randomized trial comparing preoperative short-course radiotherapy with preoperative conventionally fractionated chemoradiation for rectal cancer. Br J Surg. 2006 Oct;93(10):1215-23. doi: 10.1002/bjs.5506.
PubMed 16983741Gervaz PA, Wexner SD, Pemberton JH. Pelvic radiation and anorectal function: introducing the concept of sphincter-preserving radiation therapy. J Am Coll Surg. 2002 Sep;195(3):387-94. doi: 10.1016/s1072-7515(02)01308-x. No abstract available.
PubMed 12229948Hartley A, Ho KF, McConkey C, Geh JI. Pathological complete response following pre-operative chemoradiotherapy in rectal cancer: analysis of phase II/III trials. Br J Radiol. 2005 Oct;78(934):934-8. doi: 10.1259/bjr/86650067.
PubMed 16177017Maas M, Nelemans PJ, Valentini V, Das P, Rodel C, Kuo LJ, Calvo FA, Garcia-Aguilar J, Glynne-Jones R, Haustermans K, Mohiuddin M, Pucciarelli S, Small W Jr, Suarez J, Theodoropoulos G, Biondo S, Beets-Tan RG, Beets GL. Long-term outcome in patients with a pathological complete response after chemoradiation for rectal cancer: a pooled analysis of individual patient data. Lancet Oncol. 2010 Sep;11(9):835-44. doi: 10.1016/S1470-2045(10)70172-8. Epub 2010 Aug 6.
PubMed 20692872Habr-Gama A, Perez RO, Proscurshim I, Campos FG, Nadalin W, Kiss D, Gama-Rodrigues J. Patterns of failure and survival for nonoperative treatment of stage c0 distal rectal cancer following neoadjuvant chemoradiation therapy. J Gastrointest Surg. 2006 Dec;10(10):1319-28; discussion 1328-9. doi: 10.1016/j.gassur.2006.09.005.
PubMed 17175450Habr-Gama A, Perez RO, Nadalin W, Sabbaga J, Ribeiro U Jr, Silva e Sousa AH Jr, Campos FG, Kiss DR, Gama-Rodrigues J. Operative versus nonoperative treatment for stage 0 distal rectal cancer following chemoradiation therapy: long-term results. Ann Surg. 2004 Oct;240(4):711-7; discussion 717-8. doi: 10.1097/01.sla.0000141194.27992.32.
PubMed 15383798
Study at a glance
From the registry record, last updated by the sponsor on 15 May 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Radical External Beam Chemoradiation in Patients With Rectal Cancer: a "Wait-and-see" Approach
- ClinicalTrials.gov ID
- NCT03001362
- Acronym / sponsor ID
- 14-407 GEN
- Conditions
- Colorectal Carcinoma
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 48 participants (estimated)
- Lead sponsor
- McGill University Health Centre/Research Institute of the McGill University Health CentreUniversity, hospital or other
- Study start
- Mar 2015 (actual)
- Primary completion
- 31 Jul 2025 (estimated)
- Study completion
- Jan 2026 (estimated)
- First posted
- 23 Dec 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Patients with histologically proven adenocarcinoma of the rectum will receive pelvic radiotherapy to a dose of 45Gy in 25 fractions with a tumor boost to a dose of 9Gy in 5 fractions (thus total of 54Gy/30Fx to the primary tumor), combined with radio sensitizing chemotherapy. Patients will then be closely monitored, through endoscopy and imaging, for response to treatment and relapse. Salvage oncologic surgery to be offered if there is failure to achieve complete clinical response or in the event of a loco regional relapse.
Detailed description
The combination of preoperative (chemo)radiotherapy and total mesorectal excision (TME) has been shown to reduce the risk of local recurrence in patients with resectable adenocarcinoma of the rectum. The improved local control rates come at the price of an increased risk of surgical complications, including a postoperative death rate of 2-8 percent which may reach 30 per cent at 6 months in those aged over 85 years, as well as long-term impact on anorectal, urinary and sexual function. Patients with cancers in the low rectum in close proximity to the sphincter muscles, may require a permanent stoma, which can be associated with high psychological morbidity.
Preoperative chemoradiotherapy followed by a delay to resection can produce pathological complete responses. One review of phase II and III studies identified an overall pCR rate of 13.5%, but even higher rates of pCR have been observed with doses of radiotherapy exceeding 45 Gy . Certainly patients who proceed to radical surgery after achieving a pCR with chemo radiation do have favorable long-term outcomes. But do patients whose tumor has already been sterilized by chemo radiotherapy need to proceed with radical surgery?
A number of studies have now emerged highlighting the rationale of a 'wait and see' policy for patients who achieve a complete clinical response (cCR) after chemo radiotherapy. The majority of the clinical data supporting this approach have come from Brazil. The Brazilian data suggests that observation of such patients yields survival rates similar to those of patients who undergo radical surgery with confirmation of pCR. More recent studies from the United Kingdom and the Netherlands appear to support the feasibility of this approach. To date there is no published prospectively collected data of a wait-and-see policy from a North American Centre.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Radical External Beam RT for Colorectal Ca | Experimental | Radiation: Radical external beam radiotherapyA single arm consisting of: Radical external beam RT dose of 54 Gy in 30fx with radiosensitizing chemotherapy as per institutional standard |
Who may qualify
- Ages
- 18 to 90 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (16 listed)
- Pelvic MRI defined disease (at least one of the following):
- Patients are considered medically fit for oncologic resection
- ECOG performance status 0 or 1
- No evidence of established metastatic disease (CT chest and abdomen)
- Absolute neutrophil count >1.5x109/L; platelets >100x109/L,
Key exclusion criteria (13 listed)
- Previous radiotherapy to the pelvis (including brachytherapy)
- Enlarged extramesorectal nodes
- Uncontrolled cardiorespiratory comorbidity (includes patients with inadequately controlled angina or myocardial infarction within 6 months of randomisation)
- T1N0 disease without extra-mural venous invasion
- Unequivocal evidence of metastatic disease (includes resectable metastases)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Radical external beam radiotherapyAlso: Radiosensitizing chemotherapypelvic radiotherapy to a dose of 45 Gy in 25 fractions with a tumor boost to a dose of 9 Gy in 5 fractions (thus total of 54 Gy/30 fractions to the primary tumor), combined with radio sensitizing chemotherapy. | Radiation | Radical External Beam RT for Colorectal Ca |
Primary outcome
Feasibility of a "wait and see" approach
Time frame: One year
Rate of failure to achieve CR or the rate of recurrence after achieving CR
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 May 2025.
- Background: PubMed 16971718Bosset JF, Collette L, Calais G, Mineur L, Maingon P, Radosevic-Jelic L, Daban A, Bardet E, Beny A, Ollier JC; EORTC Radiotherapy Group Trial 22921. Chemotherapy with preoperative radiotherapy in rectal cancer. N Engl J Med. 2006 Sep 14;355(11):1114-23. doi: 10.1056/NEJMoa060829.
- Background: PubMed 17008704Gerard JP, Conroy T, Bonnetain F, Bouche O, Chapet O, Closon-Dejardin MT, Untereiner M, Leduc B, Francois E, Maurel J, Seitz JF, Buecher B, Mackiewicz R, Ducreux M, Bedenne L. Preoperative radiotherapy with or without concurrent fluorouracil and leucovorin in T3-4 rectal cancers: results of FFCD 9203. J Clin Oncol. 2006 Oct 1;24(28):4620-5. doi: 10.1200/JCO.2006.06.7629.
- Background: PubMed 17968156Peeters KC, Marijnen CA, Nagtegaal ID, Kranenbarg EK, Putter H, Wiggers T, Rutten H, Pahlman L, Glimelius B, Leer JW, van de Velde CJ; Dutch Colorectal Cancer Group. The TME trial after a median follow-up of 6 years: increased local control but no survival benefit in irradiated patients with resectable rectal carcinoma. Ann Surg. 2007 Nov;246(5):693-701. doi: 10.1097/01.sla.0000257358.56863.ce.
- Background: PubMed 15496622Sauer R, Becker H, Hohenberger W, Rodel C, Wittekind C, Fietkau R, Martus P, Tschmelitsch J, Hager E, Hess CF, Karstens JH, Liersch T, Schmidberger H, Raab R; German Rectal Cancer Study Group. Preoperative versus postoperative chemoradiotherapy for rectal cancer. N Engl J Med. 2004 Oct 21;351(17):1731-40. doi: 10.1056/NEJMoa040694.
- Background: PubMed 19269519Sebag-Montefiore D, Stephens RJ, Steele R, Monson J, Grieve R, Khanna S, Quirke P, Couture J, de Metz C, Myint AS, Bessell E, Griffiths G, Thompson LC, Parmar M. Preoperative radiotherapy versus selective postoperative chemoradiotherapy in patients with rectal cancer (MRC CR07 and NCIC-CTG C016): a multicentre, randomised trial. Lancet. 2009 Mar 7;373(9666):811-20. doi: 10.1016/S0140-6736(09)60484-0.
- Background: PubMed 21596621van Gijn W, Marijnen CA, Nagtegaal ID, Kranenbarg EM, Putter H, Wiggers T, Rutten HJ, Pahlman L, Glimelius B, van de Velde CJ; Dutch Colorectal Cancer Group. Preoperative radiotherapy combined with total mesorectal excision for resectable rectal cancer: 12-year follow-up of the multicentre, randomised controlled TME trial. Lancet Oncol. 2011 Jun;12(6):575-82. doi: 10.1016/S1470-2045(11)70097-3. Epub 2011 May 17.
- Background: PubMed 20632311Borowski DW, Bradburn DM, Mills SJ, Bharathan B, Wilson RG, Ratcliffe AA, Kelly SB; Northern Region Colorectal Cancer Audit Group (NORCCAG). Volume-outcome analysis of colorectal cancer-related outcomes. Br J Surg. 2010 Sep;97(9):1416-30. doi: 10.1002/bjs.7111.
- Background: PubMed 20395841Paun BC, Cassie S, MacLean AR, Dixon E, Buie WD. Postoperative complications following surgery for rectal cancer. Ann Surg. 2010 May;251(5):807-18. doi: 10.1097/SLA.0b013e3181dae4ed.
- Background: PubMed 18452860Rutten HJ, den Dulk M, Lemmens VE, van de Velde CJ, Marijnen CA. Controversies of total mesorectal excision for rectal cancer in elderly patients. Lancet Oncol. 2008 May;9(5):494-501. doi: 10.1016/S1470-2045(08)70129-3.
- Background: PubMed 16983741Bujko K, Nowacki MP, Nasierowska-Guttmejer A, Michalski W, Bebenek M, Kryj M. Long-term results of a randomized trial comparing preoperative short-course radiotherapy with preoperative conventionally fractionated chemoradiation for rectal cancer. Br J Surg. 2006 Oct;93(10):1215-23. doi: 10.1002/bjs.5506.
- Background: PubMed 12229948Gervaz PA, Wexner SD, Pemberton JH. Pelvic radiation and anorectal function: introducing the concept of sphincter-preserving radiation therapy. J Am Coll Surg. 2002 Sep;195(3):387-94. doi: 10.1016/s1072-7515(02)01308-x. No abstract available.
- Background: PubMed 16177017Hartley A, Ho KF, McConkey C, Geh JI. Pathological complete response following pre-operative chemoradiotherapy in rectal cancer: analysis of phase II/III trials. Br J Radiol. 2005 Oct;78(934):934-8. doi: 10.1259/bjr/86650067.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Neil Kopek, M.D. principal investigator
Radiation Oncologist
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Radical external beam radiotherapy in people with Colorectal Carcinoma, run by McGill University Health Centre/Research Institute of the McGill University Health Centre at 2 sites in Canada.
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 16 inclusion and 13 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 15 May 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in Canada. 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 Neil Kopek, M.D. (514-934-4440, neil.kopek@muhc.mcgill.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Feasibility of a "wait and see" approach (time frame: One 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 NCT03001362, which also lists 24 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 15 May 2025.