CClinicalTrials.gg
CompletedNCT03939117Updated Jun 22, 2020

The IUSS Crohn's Study: A Feasibility Study

An observational study in Crohn Disease and Inflammatory Bowel Diseases, sponsored by Portsmouth Hospitals NHS Trust. Completed at 1 site in United Kingdom. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-06-22.

Sponsored by Portsmouth Hospitals NHS Trust · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
6
Ages
18 Years and older
Sex
All
01

Study summary

The aim of this study is to evaluate if an intraoperative protocol for Ultrasound scan (USS) is feasible and safe in patients undergoing elective surgery for ileocolic CD. The results of this study could guide the development of a larger randomised trial.

Read the detailed description

To date the intraoperative clinical assessment of location and extent of ileocolic CD has been left at the discretion of the operating surgeon guided by a mixture of experience, tactile feedback, macroscopic appearance and results of preoperative imaging, with significant intra and inter surgeon variability, potentially resulting in long segments of small bowel being removed unnecessarily, which is a significant concern in patients at risk of several abdominal surgeries and of developing "short bowel syndrome". At surgery, the operating surgeon also evaluates the full length of the small bowel to locate and assess further areas of CD: a process called "disease mapping". This process is not only important to intervene simultaneously on other CD segments causing complications, but also to provide the IBD MDT team with a full evaluation of the extent and severity of CD in that particular patient, in order to guide the tailored postoperative maintenance treatment.

A standardised approach to intraoperative evaluation of extent and location of CD is desirable, based on reliable and reproducible techniques, minimising the risk of surgical recurrence, optimising the decision making on maintenance treatment and follow-up, protecting patients from unnecessary extended small bowel resections and risk of short bowel syndrome.

The study objectives are To evaluate the feasibility of using intraoperative USS in patients with CD of the small bowel, and to describe the steps of the procedure.

To assess safety of the intraoperative USS procedure during surgery. To evaluate the feasibility of study delivery, i.e. recruitment of study participants and retention at follow-up visits.

To record surgical and patient outcomes up to 6 weeks To evaluate the direct and indirect costs of a standardised intraoperative USS protocol.

02

Conditions studied

  • Crohn Disease
  • Inflammatory Bowel Diseases
03

In context

Crohn Disease

1,880 studies on the registry are indexed under Crohn Disease; 462 are open to participants now.

This study's enrollment of 6 is below the median of 162 across 608 observational studies indexed under Crohn Disease.

Browse Crohn Disease studies →

Lead sponsor

Portsmouth Hospitals NHS Trust is the lead sponsor of 74 studies on the registry; 15 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The target population is adults (18+ years) undergoing elective surgery (i.e. planned operation) for CD affecting the small bowel.

Inclusion criteria

  1. Aged 18 years or over
  2. American society of Anaesthesiologists (ASA) grade I, II or III
  3. Undergoing elective surgery to remove part of the terminal ileum which is affected by CD.
  4. . Indication for surgery agreed at IBD MDT meeting
  5. Able to give written informed consent

Exclusion criteria

Exclusion Criteria:

  1. Undergoing emergency surgery
  2. Previous abdominal surgery for CD
  3. Pregnant
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
6 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Number of intraoperative USS assessments completed.

    Recording the number of intraoperative surgery completed

    Time frame: Day of surgery

  2. Number of adverse events reported during surgery.

    Recording the number of adverse events reported during the surgey

    Time frame: Day of surgery

  3. To record the incidence of crohn's disease identified at macroscopic intraoperative assessment of the small bowel by the surgeon, and the intraoperative USS assessment of the small bowel.

    recording the incidence of crohn's disease identified following assessment of the small bowel by the surgeon macroscopcially

    Time frame: Day of surgery

  4. To record the length of areas affected by crohn's disease identified at macroscopic intraoperative assessment of the small bowel by the surgeon

    Measurement in centimeters of the length of bowel affected by crohn's disease as identified by the surgeon macroscopically

    Time frame: Day of surgery

  5. To compare the incidence of crohn's disease indentified macroscopically by the surgeon with the intraoperative ultrasound assessment

    compare the incidence of crohn's disease identified by the surgeon with the incidence of crohn's disease identified by the intraoperative ultrasound assessment

    Time frame: Day of surgery

  6. To compare the length of crohn's disease identified marcoscopically by the surgeon with the intraoperative ultrasound assessment

    compare the length of crohn's disease in centimetres identified by the surgeon with the incidence of crohn's disease identified by the intraoperative ultrasound assessment

    Time frame: Day of surgery

  7. To evaluate the feasibility of study delivery, i.e. recruitment of study participants and retention at follow-up visits.

    Feasibility of data collection required for a future trial measured by number of eligible participants, the proportion of patients consenting for the study, the proportion of recruited participants with all the required baseline and follow-up assessments completed, proportion of withdrawals from follow-up data collection, reasons for withdrawal and number of losses to follow-up.

    Time frame: 6 week follow up

  8. To record surgical and patient outcomes up to 6 weeks

    Operating time (Kaplan-Meier analysis), intra- and post-operative complication rates, 30 day morbidity and mortality rate

    Time frame: 30 day morbidity

  9. To evaluate the direct and indirect costs of a standardised intraoperative USS protocol.

    Annotation of key steps for performance of small bowel intraoperative USS in patients with CD.

    Time frame: 1 year

07

Study locations

1 site
  • Portsmouth Hospitals NHS Trust
    Portsmouth, Hampshire PO6 3LY, United Kingdom
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 22, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03939117
Lead sponsor
Portsmouth Hospitals NHS Trust
Responsible party
Sponsor
First posted
May 6, 2019
Start date
Jan 19, 2019
Primary completion
Mar 9, 2020
Completion
Mar 9, 2020
Last update
Jun 22, 2020

Study contacts

Valerio Celentano
principal investigator · Portsmouth Hospitals NHS Trust

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion