NCT04020835

Brief Summary

Abdominal pain is a central symptom of Inflammatory Bowel Disease (IBD) and Irritable Bowel Syndrome (IBS). IBD is an autoimmune disease characterized by inflammation of the gastrointestinal tract. IBS does not have clear biomarkers and is diagnosed based on symptom reports. The aim of this study is to explore biopsychosocial factors which may perpetuate and/or increase the severity of pain in these conditions. The main focus will be on the role of top-down brain processes in the experience of abdominal pain.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
90

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started May 2019

Shorter than P25 for all trials

Geographic Reach
1 country

3 active sites

Status
unknown

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

Study Start

First participant enrolled

May 20, 2019

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

July 12, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 16, 2019

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2020

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2020

Completed
Last Updated

July 18, 2019

Status Verified

July 1, 2019

Enrollment Period

9 months

First QC Date

July 12, 2019

Last Update Submit

July 16, 2019

Conditions

Outcome Measures

Primary Outcomes (2)

  • Efficiency of inhibitory pain modulation, comparing patients with IBS or quiescent IBD

    Measured with Conditioned Pain Modulation test. Two inflatable pressure cuffs are secured around the caffs of subjects and then inflated. Pressure pain detection threshold (PDT) and pressure pain tolerance (PTT) are assessed on a subject's dominant leg. PDT is the first sensation of pain and PTT is defined as the point a subject no longer want the cuff to inflate. A VAS device allows participants to report their pain levels by moving a sliding button along a continuous line between two endpoints (0=no pain to 10=worst pain imaginable). After a second baseline measure on the non-dominant leg CPM is assessed: the cuff on the non-dominant leg is inflated to 70% of the subject's PTT, then after 15 seconds the cuff on the dominant leg is inflated. If pain modulation is achieved, the subject will show increased threshold and tolerance levels during CPM. The CPM-effect is defined as the difference between baseline and conditioning measurements of both PDT and PTT.

    January 31, 2020

  • Contribution of socio-demographic, clinical and psychosocial factors to the efficiency of inhibitory pain modulation

    Measured with a range of questionnaires, i.e.: Brief Pain Inventory Short Form (BPI), painDETECT questionnaire, Patient Health Questionnaire-9, Generalized Anxiety Disorder-7, Visceral Sensitivity Index, Pain Catastrophising Scale, Cognitive and Behavioural Response to Symptoms Questionnaire, Pain Self Efficacy Questionnaire, Chronic Pain Acceptance Questionnaire-8, and Mental Health Continuum Short-Form

    January 31, 2020

Secondary Outcomes (1)

  • Pain facilitation, comparing patients with IBS and quiescent IBD

    January 31, 2020

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients with quiescent Inflammatory Bowel Disease or Irritable Bowel Syndrome

You may qualify if:

  • Aged 18 and over
  • Sufficient command of written and spoken English
  • Proof of diagnosis of IBD (Crohn's disease or ulcerative colitis) for more than 6 months - - Clear indicators of remission: on faecal calprotectin (≤200 µg/g) or measurements of C-reactive protein (CRP; ≤10 mg/dl) within the last 3 months or as part of recruitment
  • No previous episodes of acute or sub-acute obstruction
  • Current diagnosis of IBS measured with Rome IV criteria
  • No serious other bowel diseases

You may not qualify if:

  • Major abdominal surgery in the last 6 months, or 3 or more previous major abdominal surgeries
  • Pregnancy or childbirth in the last 6 months
  • Any other diagnosed medical condition that may explain abdominal pain, including but not limited to known gynaecological conditions such as endometriosis and known post-surgical adhesions
  • Any diagnosed co-morbid medical conditions associated with known neuropathy, such as diabetic neuropathy, renal neuropathy, multiple sclerosis
  • Use of opioids in the last week
  • Use of anti-depressants used as pain medication in the last month

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Barts Health NHS Trust

London, United Kingdom

NOT YET RECRUITING

Guy's and St Thomas' NHS Foundation Trust

London, United Kingdom

RECRUITING

King's College Hospital NHS Foundation Trust

London, United Kingdom

NOT YET RECRUITING

Biospecimen

Retention: SAMPLES WITHOUT DNA

stool sample (faecal calprotectin)

MeSH Terms

Conditions

Abdominal PainInflammatory Bowel DiseasesIrritable Bowel Syndrome

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsSigns and Symptoms, DigestiveGastroenteritisGastrointestinal DiseasesDigestive System DiseasesIntestinal DiseasesColonic Diseases, FunctionalColonic Diseases

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 12, 2019

First Posted

July 16, 2019

Study Start

May 20, 2019

Primary Completion

January 31, 2020

Study Completion

March 31, 2020

Last Updated

July 18, 2019

Record last verified: 2019-07

Locations