Pathway of Low Anterior Resection Syndrome Relief After Surgery: a Feasibility Study
POLARiS
A Feasibility, Multicentre Randomised Control Trial Assessing the Treatment Options for Patient With Major Low Anterior Resection Syndrome to Establish a Pathway Of Low Anterior Resection Syndrome Relief After Surgery
2 other identifiers
interventional
187
1 country
4
Brief Summary
Currently, no standard exists for the treatment and management of Low Anterior Resection Syndrome (LARS)- a common disorder that affects patients who have had part of their bowel removed due to colorectal cancer. Decisions about which treatment patients receive is at the discretion of local clinicians, leading to a variation in both clinical practice and the outcomes of these patients. As a result, there is a need for research to assess what treatments are most effective in treating or managing LARS to establish a consensus and develop a treatment pathway in the UK. This study aims to assess the feasibility of undertaking such a trial utilising a novel 'trial within cohorts (TWiCs)' study design, with a view to informing the design of a full-scale trial.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started May 2022
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 1, 2022
CompletedFirst Posted
Study publicly available on registry
April 8, 2022
CompletedStudy Start
First participant enrolled
May 23, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 30, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
September 30, 2023
CompletedJuly 20, 2023
November 1, 2022
1.4 years
April 1, 2022
July 19, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (10)
Recruitment rate of to cohort arm of study
The total number of participants enrolled into the study over the recruitment period.
9 months
Assess characteristics of patients recruited to the cohort
We will record basic demographics, medical history and prevalence of relative symptoms of participants enrolled in the cohort study to describe the characteristics of no- minor- and major- LARS patients
9 months
Prevalence of 'major LARS' in the patient cohort
The number of participants in the cohort that meet the criteria for 'major low anterior resection syndrome (LARS)', as measured by the LARS scoring tool. LARS scoring tool produces a score from 0 - 42, which represents the severity of symptoms, where 0 is least severe and 42 is most severe. Score =\>30 is considered 'major LARS'. LARS score will be measured at 5 times at 3-monthly intervals over 12 months.
12 months
Onset of 'major LARS' symptoms in relation to surgery
The time (in months) from resection surgery to onset of 'major LARS' symptoms, as reported by the LARS scoring tool.
Time from surgery to onset of major LARS, up to 10 years.
Onset of 'major LARS' symptoms in relation to radiotherapy treatment
The time (in months) from completing radiotherapy treatment to onset of 'major LARS' symptoms, as reported by the LARS scoring tool.
Time from ending radiotherapy treatment to onset of major LARS, up to 10 years.
Recruitment rate to randomised trial part of the study
The total number of cohort participants that are enrolled into the randomised trial part of the study, over the recruitment period.
9 months
Proportion of randomised participants that are allocated to each trial arm
The proportion of randomised participants that meet the criteria for, and are allocated to, each of the three trial arms (transanal irrigation; sacral neuromodulation; optimised conservative management).
9 months
Describe variation in clinical practice across UK sites
Where possible, we will record patient's previous treatments and interactions with health services in relation to their bowel dysfunction symptoms. This will be used to describe the variation in UK clinical practice in terms of diagnosis, management and treatment pathways.
Up to 10 years prior to recruitment
Compliance of participants to the study programme
The proportion of participants that complete and return follow-up questionnaires (four questionnaires at 3-month intervals).
12 months
Adherence of participants to the treatment programme
The proportion of patients that continue to receive the treatment assigned to them at the end of the follow-up period.
12 months
Secondary Outcomes (7)
Change in LARS score
12 months.
Change in EuroQuol 5-Dimension Health-related Quality of Life instrument (5-level) (EQ-5D-5L)
12 months
Change in European Organisation for Research and Treatment of Cancer Colorectal Quality of Life Questionnaire
12 months
Change in European Organisation for Research and Treatment of Cancer Cancer Quality of Life Questionnaire
12 months
Change in medical outcome profile score
12 months
- +2 more secondary outcomes
Study Arms (4)
Cohort
NO INTERVENTIONPatients who have undergone colonic resection for colorectal cancer in the last 10 years. Patient reported outcome measures collected at 3-monthly intervals.
Optimised Conservative Management
ACTIVE COMPARATORCohort participants who are identified as having 'major LARS' at any point are treated with Optimised Conservative Managements, consisting of medication, dietary advice, lifestyle advice and physiotherapy.
Trans-Anal Irrigation
ACTIVE COMPARATORCohort participants who are identified as having 'major LARS' at any point are treated with Trans-anal irrigation, in additional to receiving optimised conservative management. Transanal irrigation system will be decided upon with the participant and procured locally.
Sacral NeuroModulation
ACTIVE COMPARATORCohort participants who are identified as having 'major LARS' at any point are treated with Sacral Neuromodulation system, in addition to receiving optimised conservative management. Medtronic Interstim system will be used.
Interventions
Sacral Neuromodulation group will include up-to 20 patients with major LARS. Medtronic Interstim system will be used, including 2 week trial device.
Trans-Anal irrigation group will include up-to 20 patients with major LARS. Specific system will be agreed with the patient, depending on eligibility and preference.
Optimised conservative management will include up-to 30 patients with major LARS. They will be provided with a resource booklet which includes dietary and lifestyle advice as well as exercises that can be undertaken independently.
Eligibility Criteria
You may qualify if:
- For cohort:
- Diagnosis of rectal or sigmoid cancer
- Low or high anterior resection (colorectal resection with anastomosis to the rectum)
- Functioning anastomosis
- Aged 18 years and older
- Primary surgery/reversal of ileostomy less than 10 years before recruitment
- Reversal of ileostomy at least 12 weeks prior to recruitment with at least a further 12 weeks of standard care to manage symptoms following reversal
- Willing and able to provide valid informed consent
- For randomisation:
- Recruited to cohort study
- Willing and able to provide valid informed consent for randomisation
- Major LARS symptoms (Defined as score of 30+ on LARS scoring tool)
- Previous unsuccessful conservative treatment determined by treating clinician and patient
You may not qualify if:
- For cohort
- \- Inability to understand and complete study questionnaires independently. (Due to cognitive or intellectual impairment, Due to insufficient English language skills)
- For randomised control trial
- Pregnancy
- No previous conservative treatment plan for the management of LARS
- Does not meet any treatment-specific criteria
- For TAI randomisation:
- Unable to perform TAI
- History of anastomotic leak with evidence of ongoing leak/sinus
- Previous use of TAI for LARS
- Site unable to offer TAI as a treatment
- Any other contraindications advised by the care team, product manufacturer or distributor
- For SNM randomisation:
- \<12months since primary cancer surgery
- Palliative disease
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Cardiff and Vale University Health Boardlead
- University of Leedscollaborator
- Aneurin Bevan University Health Boardcollaborator
- University Hospital Southampton NHS Foundation Trustcollaborator
- Bowel Research UKcollaborator
- The Leeds Teaching Hospitals NHS Trustcollaborator
Study Sites (4)
University Hospital Southampton NHS Foundation Trust
Southampton, Hampshire, SO16 6YD, United Kingdom
Leeds Teaching Hospital NHS Trust
Leeds, Yorkshire, LS9 7TF, United Kingdom
Julie Cornish
Cardiff, CF14 4XW, United Kingdom
Royal Gwent Hospital
Newport, NP20 2UB, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Julie A Cornish
Cardiff and Vale University Health Board
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER GOV
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 1, 2022
First Posted
April 8, 2022
Study Start
May 23, 2022
Primary Completion
September 30, 2023
Study Completion
September 30, 2023
Last Updated
July 20, 2023
Record last verified: 2022-11
Data Sharing
- IPD Sharing
- Will not share