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Clinical Trial Summary

Advanced pelvic cancers are uncommon, with treatment being challenging. Around 4000 patients every year need treatment in the UK. Cancers can involve multiple organs and often need radiotherapy and chemotherapy before surgery. Surgery usually requires removal of multiple pelvic organs, including muscles, bone, and skin around the anus (the perineum). This can lead to complications relating to both the empty pelvis syndrome and closure of the perineal defect. Reconstruction is challenging, with frequently occurring complications, reducing speed of recovery and quality of life. This study investigates complication frequency, quality of life and expenses following different reconstruction techniques. The investigators hope to improve patient and doctor decision-making in this area and find the best methods of reconstruction to improve outcomes. REMACS has three work packages: 1. Maintenance of a database of patients undergoing colorectal surgery at Southampton and Salisbury Hospitals, including those undergoing extra-levator abdominoperineal excision and pelvic exenteration. This includes clinical data, imaging, health resource use, and patient reported outcome measures. 2. A collaborative national prospective cohort study investigating morbidity, health resource use, longitudinal quality of life outcomes (EORTC QLQ-C30 and disease-specific modules) and quality adjusted life years. The investigators will also assess financial toxicity using the comprehensive score for financial toxicity. 3. A qualitative study using semi-structured interviews to undertake a more complex evaluation of quality of life and patient experiences in patients that have recovered from their surgeries.


Clinical Trial Description

This is an observational multicentre retrospective and prospective cohort study, and a qualitative study. The project will have three working packages: - Work package 1 - maintenance of a colorectal surgery database - Work package 2 - prospective collaborative national UK study - Work package 3 - qualitative analysis with semi-structured interviews WORK PACKAGE 1 - COLORECTAL SURGERY DATABASE: Data collected includes: - Basic demographic information - Co-morbidities at time of surgery - Other cancer treatments - Final cancer staging and diagnosis - Type of procedure - Methods of reconstruction - Use of healthcare resource: (theatre time, surgical teams, use of consumables, index operation intensive care stay, total length of stay, planned or emergency readmissions, use of imaging for complications, re-interventions, and outpatient clinic use). - Morbidity - empty pelvis syndrome complications with collation of all complications that occurred summarised into: (the highest Clavien-Dindo (CD) score, and the comprehensive complication index by accumulating CD graded complications that a patient has as a result of their surgery. - Survival: overall and disease-free survival - Patient reported outcome measures WORK PACKAGE 2 - PROSPECTIVE COLLABORATIVE STUDY: Abdominoperineal excision and pelvic exenteration can be used in a wide range of cancer types, and in the case of pelvic exenteration can be used to manage both recurrent and primary cancers. The principal PROM used will be the EORTC QLQ-C30 with its modular questionnaires giving additional insight into disease-specific quality of life. Patients will be recruited once a decision to undertake abdominoperineal excision or pelvic exenteration surgery has taken place. Participants will be sent a participant information sheet which will include the dates of when participants can expect follow up telephone calls, with information on how to contact the study team to change these should participants wish to. Once consented participants will undergo the following PROMs as part of their baseline questionnaire: - EORTC QLQ-C30 with specific cancer-type modules - Comprehensive Score for Financial Toxicity (COST) and financial status questionnaire (non-validated) The investigators anticipate that participants will be able to self-assess the above PROMs on a paper printed form, however a member of the research team will be available to support the participant if required. Clinical information will also be collected pre-operatively, including: demographic information, co-morbidities, cancer staging, and previous cancer treatments. Patients will be given copies of the follow up questionnaires at this time so participants have them as a reference when completing follow up questionnaires. Patients can opt for either email or telephone follow up for quality of life, if opting for email REDCap study will automatically send out emails based on the date of surgery. The patient will then undergo their surgery with method of reconstruction at the discretion of the operating surgeon(s). Following the index admission researchers will enter details on the hospital stay: - Type of procedure - Methods of reconstruction - Theatre time - Theatre teams - Use of consumables - Length of intensive care and hospital stay - Use of imaging for complications - Re-interventions for complications - Discharge destination following index admission - Final cancer staging - Perineal and empty pelvis morbidity, and overall Clavien-Dindo - If applicable survival and cause of death At 3 months post-operatively questionnaires will be repeated over the telephone (EORTC QLQ-C30 with cancer-specific module, and COST). At this same time point researchers will review routinely collected clinical data and use of in-hospital health resources to include: - In-hospital health resource use: planned or emergency re-admissions, use of imaging to investigate complications, re-interventions (surgical and radiological), planned or unplanned outpatient visits. - Longitudinal CCI scores updated, and if applicable an increase in CD if a more severe complication develops. - If applicable cancer recurrence, survival and cause of death will be recorded. Patients will be emailed or telephoned on the date specified on their participant information sheet, however if this time is not convenient then a better time will be arranged with the patient. If participants do not respond to the email or first telephone call then the investigators will make a further three separate attempts to contact the patient. If there is still no response participants will be deemed lost to the study. This follow up process will be repeated again at 6 months and 12 months. At the 12 month time point the investigators will ask patients additional questions on their use of health care resources and their current financial status, to include: - Use of community health resource use due to complications including: GP appointments and nursing home care days required for recovery from surgery. - Use of healthcare resources at hospitals other than the treating hospital - clinic appointments and admissions At the end of this time the patient will have completed the study. WORK PACKAGE 3 - QUALITATIVE STUDY: The qualitative study will recruit patients from work packages 1 and 2. The investigators will invite 30 purposefully sampled patients that are 6-24 months following their surgery. Suitable patients will be contacted with a posted participant information sheet and a telephone follow up call to allow participants to ask questions about the study. Following informed consent semi-structured interviews will take place with semi-structured open questions to guide the discussions. Interviews will be recorded on an encrypted audiorecorder and then transcribed. The investigators will initially undertake three pilot interviews to review that the semi-structured interview schedule is adequate to fully explore our objectives and to obtain good quality interview transcripts for analysis. These pilot interviews once completed will be reviewed by the research team. The semi-structured interview schedule questions may be changed if the interviews are of poor quality, pilot interviews demonstrate new insights from participants that suggest fruitful lines of enquiry, or inconsistencies that require further exploration. If subsequent interviews are very different than the pilot interviews following these changes, then these early interviews will not be included in the qualitative analysis and additional patients will be recruited. DATA ANALYSIS PLAN: Statistical analysis: The investigators will be collecting data on the timepoints as described above. Continuous data will be will be summarised using descriptive statistics (mean, median, standard deviation, lower and upper quartiles). Categorical data will be summarised using counts and percentages. As studies are non-randomised, the investigators will utilise regression models to adjust for cofounding in this observational study. In order to obtain our outcomes a brief summary of analyses is below. Work package 1 (Colorectal Database): Primary analysis: -Frequency of morbidity relating to the empty pelvis syndrome and perineal wound will be compared for different types of perineal reconstruction will be analysed using multiple linear regression. Secondary analysis: - Overall morbidity will be obtained using highest CD scores for different methods of perineal reconstruction analysed using multiple linear regression. - Disease free and overall survival will be analysed using Kaplan-Meier curves and log rank tests with a multivariate Cox regression hazard model to identify factors independently associated with survival, including method of reconstruction. Exploratory analysis: - Other factors including age, gender, BMI, final staging, co-morbidities, type of operation, neoadjuvant chemoradiotherapy and use of intra-operative electron radiotherapy will be included in the analysis - Other outcomes including primary operation time, lengths of stay, and readmissions with be explored Work package 2 (prospective study): Primary and secondary analysis: - Patient reported outcome measures will be analysed using regression models, including linear mixed-effects models for repeat measures and adjusted analyses. - The same clinical data fields will be collected as per work package 1, the analysis above repeated with exploratory analysis to find factors that are independently significantly associated with changes in the PROMs. Health economic analysis: Work package 1 (retrospective study): The investigators will collect data on use of hospital healthcare resources in each patient group. The investigators will collect resource use for each parameter required for each patient. The investigators will then undertake costing using a micro-costing approach and health resource group costing for each parameter. Applying costs to each parameter will use a combination of manufacturer prices for consumables, National Cost Collection for the NHS, National Schedule of NHS Costs, NHS National Tariff and the Unit Costs of Health and Social Care from the Personal Social Services Research Unit. The investigators will then report overall costs associated with different methods of perineal reconstruction and the cost of complications that were encountered. Work package 2 (prospective study): The investigators will collect hospital healthcare resource use data prospectively and apply micro-costing to these parameters in the same way as per work package 1 for each patient and their method of reconstruction. The investigators will also ask patients to provide us with use of community healthcare resources as a result of their surgery, data for which the investigators will not be able to obtain from their clinical notes. Participants will receive EORTC QLQ-C30 questionnaires at baseline, 3 months, 6 months and 12 months. From these responses the investigators will map onto EQ-5D-3L in order to reduce the overall number of questionnaires patients are undertaking in our study. This will allow us to plot EQ-5D-3L responses for different methods of reconstruction and plot the area under the curve. Within the trial time a health economic model would be built which would follow the NICE reference case and ISPOR Task Force guidelines on health economic analysis. This will enable us to present Quality Adjusted Life Years and incremental cost-effective ratios for the different methods of perineal reconstruction. Qualitative analysis: Qualitative analysis will take place utilising the framework approach for work package 3. Researchers will undertake critical reflection throughout the process with research diaries. Audio recordings will be transcribed verbatim. Familiarisation by the analysis team will then take place with reading and re-reading of transcripts, any field notes or reflective notes. Coding will then take place using both open coding and deductive coding with the first four transcripts coded by two researchers independently. An analytical framework will then be developed and an iterative approach will be used until the last transcript has been coded. The analytical framework will be applied and the data charted into a framework matrix with particularly insightful quotes highlighted for presentation. The data will then be interpreted to generate priori and emergent themes, typologies or connections for each of the perineal reconstructive groups. Further comparisons between different methods of reconstruction in abdominoperineal excision and pelvic exenteration will be made in order to present how patient experiences are similar and where there are disparities. The investigators will use a qualitative analysis methodology checklist in order to ensure the study is rigorous. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05219058
Study type Observational
Source University Hospital Southampton NHS Foundation Trust
Contact Charles West, MBBS BSc
Phone +442381208632
Email charles.west4@nhs.net
Status Recruiting
Phase
Start date May 17, 2022
Completion date September 1, 2027

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