The Nordic Rectal Prolapse Study

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ENROLLING_BY_INVITATION

Total Enrollment

430 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-04-01

Study Completion Date

2027-05-31

Brief Summary

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The goal of this observational study is to gather data about surgical procedures for rectal prolapse in adult human subjects. The main question it aims to answer is:

• Which procedure is best for treating external rectal prolapse?

Participants will:

* be included if they can consent to participation
* be offered standard care treatment, as no interventions will be done
* be asked to answer relevant questionnaires within 3 months prior to the surgery for rectal prolapse
* be asked to answer the same questionnaires 6 and 12 months postoperative
* optionally answer the questionnaires again at 3 and 1 year postoperative, but this is not part of the existing funding body

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Detailed Description

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The Nordic Rectal Prolapse Study (NORDIC) is an observational trial initiated from the Pelvic Floor Unit, Aarhus University Hospital (AUH), planned in collaboration with the Pelvic Floor Society, UK. Although an RCT is the most favourable design for interventional surgical trials, it took seven years to recruit 75 patients for an RCT from Aarhus. Observational studies generally recruit with greater ease than RCTs, and this type of design is a valid option to an RCT. The non-randomized design can encourage inclusion as the type of surgery will be as per routine care, and the study is able to adapt to variations in practice during the trial period.

The investigators hypothesize that laparoscopic ventral mesh rectopexy (LVMR) is superior to other surgical procedures for rectal prolapse when it comes to improvement in quality of life for the patients.

Lead site will be the Department of Surgery, AUH. Expression of interest (EoI) forms have been collected from sites in Denmark, Scandinavia, and the UK. Patients undergoing rectal prolapse surgery will be eligible for inclusion respecting a few exclusion criteria. The trial is observational only. Surgical procedure will be by choice of the individual surgeon in collaboration with the patient. Thus, standard practice will be observed at different sites. Due to the high number of participating patients and surgical units, sufficient variation in procedures is assumed.

Quality of life measured by means of EQ-5D (European Quality of Life - 5 Dimensions) at 6 months postoperative will be the primary endpoint. There has been assumed 90% power to demonstrate non-inferiority with a two-sided 95% confidence interval, a non-inferiority margin of 0.1, a standard deviation of 0.26 based on UK population data, and that the correlation between baseline and follow-up EQ-5D is 0.4. Allowing for 10% loss to follow-up the researchers aim to recruit 430 participants in total. A conservative estimate assumes 20 centres with \>15 eligible patients per year. With a recruitment rate of 80% the investigators should be able to recruit \>480 patients over a 24-months period, allowing for staggered site initiation.

Data will be collected preoperative both from patient records and by patient reported outcome measures (PROMs) covering QoL, bowel function, urinary and sexual function, pain, and global satisfaction, and will be distributed electronically or on paper according to patient preferences.

Main assessment will be PROMs at defined time points.