Optimum Timing for Surgery After Pre-operative Radiotherapy 6 vs 12 Weeks
Is Greater Downstaging and Tumour Regression Observed When Surgery is Delayed to 12 Weeks After Completion of Chemoradiotherapy vs 6 Weeks?
1 other identifier
interventional
237
4 countries
23
Brief Summary
The aim of this study is to determine whether greater rectal cancer downstaging and regression occurs when surgery is delayed to 12 weeks after completion of radiotherapy/chemotherapy compared to 6 weeks. Hypothesis: Greater downstaging and tumour regression is observed when surgery is delayed to 12 weeks after completion of CRT compared to 6 weeks.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Oct 2009
Longer than P75 for phase_2
23 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 16, 2009
CompletedFirst Submitted
Initial submission to the registry
December 18, 2009
CompletedFirst Posted
Study publicly available on registry
December 21, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 8, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
December 8, 2019
CompletedSeptember 17, 2018
September 1, 2018
5.1 years
December 18, 2009
September 14, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The primary endpoint will be the difference in the proportion of patients in each arm, downstaged according to T stage [on MRI].
6-12 weeks
Secondary Outcomes (6)
Tumour response using SUV measurements [PET/CT], N downstaging and Tumour Regression Grade downstaging [on MRI].
3 months
Difference in proportion of patients in each arm undergoing sphincter saving surgery.
3 months
Morbidity, 30 day mortality and CRM (circumferential resection margin) positivity.
3 months
An analysis will also be undertaken using multivariate and linear regression analysis to evaluate the association of ypT and ypN stage as a potential independent predictors of SUV (max) baseline and after radiotherapy (pre-surgery) in the two arms.
3 months
Local and distant recurrence rates.
5 years
- +1 more secondary outcomes
Study Arms (2)
Group 1
NO INTERVENTIONPatients who have surgery at 6 weeks after radiotherapy/chemoradiotherapy
Group 2
EXPERIMENTALPatients who have surgery at 12 weeks after radiotherapy/chemoradiotherapy
Interventions
Eligibility Criteria
You may qualify if:
- Aged \> 18
- Informed written consent
- Histological confirmation of adenocarcinoma of rectum
- Undergoing pre-operative radiotherapy/ chemotherapy
- Completion of pre-operative treatment
You may not qualify if:
- Aged \< 18
- Absence of pre-operative RT/CT
- Medical/ psychiatric conditions that compromise the patients ability to give informed consent
- Contra-indications to MRI, i.e. hip prothesis, cardiac pacemaker
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (23)
Hospital AlemĂ£o Oswaldo Cruz
SĂ£o Paulo, 01323-903, Brazil
Jewish General Hospital
Montreal, Quebec, H3T 1E2, Canada
Bank of Cyprus Oncology Centre
Nicosia, Cyprus
Hinchingbrooke Hospital
Huntingdon, Cambridgeshire, PE29 6NT, United Kingdom
County Durham and Darlington NHS Trust (University Hospital of North Durham)
Durham, County Durham, DH1 5TW, United Kingdom
North Tees and Hartlepool NHS Trust (University Hospital of North Tees)
Stockton-on-Tees, County Durham, TS24 9AH, United Kingdom
Dorset County Hospital NHS Foundation Trust
Dorchester, Dorset, DT1 2JY, United Kingdom
Poole Hospital NHS Foundation Trust
Poole, Dorset, BH15 2JB, United Kingdom
Essex County Hospital
Colchester, Essex, CO3 3NB, United Kingdom
Portsmouth Hospitals NHS Trust (Queen Alexandra Hospital)
Portsmouth, Hampshire, PO6 3LY, United Kingdom
Medway NHS Foundation Trust
Gillingham, Kent, ME7 5NY, United Kingdom
North West London Hospitals NHS Trust (Northwick Park Hospital)
Harrow, Middlesex, HA1 3UJ, United Kingdom
James Paget University Hospitals NHS Foundation Trust
Great Yarmouth, Norfolk, NR31 6LA, United Kingdom
Epsom and St Helier's Hospitals NHS Trust
Carshalton, Surrey, SM5 1AA, United Kingdom
St Richard's Hospital
Chichester, West Sussex, PO19 6SE, United Kingdom
Mid Yorkshire Hospitals NHS Trust (Pinderfields Hospital)
Wakefield, West Yorkshire, WF1 4DG, United Kingdom
Royal United Hospital NHS Trust
Bath, BA1 3NG, United Kingdom
Sandwell and West Birmingham Hospitals NHS Trust
Birmingham, B18 7QH, United Kingdom
Croydon University Hospital
Croydon, CR7 7YE, United Kingdom
St Bartholomew's Hospital
London, EC1A 7BE, United Kingdom
St George's Healthcare NHS Trust
London, SW17 0QT, United Kingdom
Pennine Acute Hospitals NHS Trust
Manchester, M8 5RB, United Kingdom
Royal Marsden NHS Trust
Sutton, SM2 5PT, United Kingdom
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Diana Tait
Royal Marsden NHS Foundation Trust
- PRINCIPAL INVESTIGATOR
Gina Brown
Royal Marsden Hospitals NHS Foundation Trust
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 18, 2009
First Posted
December 21, 2009
Study Start
October 16, 2009
Primary Completion
December 8, 2014
Study Completion
December 8, 2019
Last Updated
September 17, 2018
Record last verified: 2018-09