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CompletedNCT02984059Updated Feb 8, 2019

Study Assessing Risk Factors for Abdominal Pain in Children With Inflammatory Bowel Disease

An observational study in Inflammatory Bowel Disease, sponsored by Connecticut Children's Medical Center. Completed at 1 site in United States. Open to participants aged 8 Years to 18 Years. Per ClinicalTrials.gov, last updated 2019-02-08.

Sponsored by Connecticut Children's Medical Center · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
126
Ages
8 Years to 18 Years
Sex
All
01

Study summary

To characterize persistent abdominal pain in children with inflammatory bowel disease (IBD) by examining factors such as disease type, activity and location, psychosocial factors, and genetics.

The investigators hypothesize that by using patient pain and psychological assessments in addition to analysis of blood, stool and colonic biopsies, we can better characterize factors that predispose children and adolescents with IBD to have persistent and/or disproportionate abdominal pain.

Read the detailed description

This is a prospective longitudinal inception cohort pilot study. The study will hopefully provide information about why there is persistent abdominal pain in children with IBD by examining factors such as disease type, activity and location, psychosocial factors, and genetics. Fifty newly diagnosed pediatric IBD patients, age 8-17 years will be enrolled into the study. There will be 2 control groups as well: pain control population: 20 patients with irritable bowel syndrome (IBS) or functional abdominal pain (FAP) diagnosis who have no evidence of bowel inflammation will serve as a pain control population for patients with no active inflammation. To serve as a control population for patients with no abdominal pain or inflammation, the investigators will include 10 patients with no gastrointestinal symptoms, who undergo colonoscopy for various reasons such as painless rectal bleeding, polyp surveillance, etc. The investigators anticipate completing enrollment in 12 months and allowed another 12 months for follow-up.

The study participants will be seen every 3 months for a year and they will have the following procedures/test performed:

  1. Standard of care blood and stool samples
  2. Pediatric Ulcerative Colitis Activity Index (PUCAI) or Pediatric Crohn's Disease Activity Index (PCDAI)

They will have an endoscopy performed at diagnosis then at 12 months from enrollment.

A magnetic resonance enterography (MRE) will be done at diagnosis.

The following pain and anxiety tests will be performed throughout the study:

Pain:

Pain Severity Duration Scale (PSDS) Pediatric Catastrophizing Scale-Child/Parents (PCS-C/P) Pain Burden Interview (PBI) Adolescent Pediatric Pain Tool (APPT)

Anxiety:

Revised Children's Anxiety and Depression Scale (RCADS-25) Children's Somatization Index (CSI-24) Adult Responses to Children's Symptoms (ARCS)

Blood, rectal biopsies and stool specimens will be obtained throughout various time points of the study to look at hematology, sed rates, C-reactive protein, genomic DNA, colon RNA, stool microbiome and stool calprotectin.

In summary, the investigators will be examining:

  1. Relationship between clinical factors and persistent abdominal pain in patients with IBD

    1. Disease type
    2. Location of disease at diagnosis
    3. Extent of disease at diagnosis
    4. Markers of inflammation at diagnosis and over the course of follow up
    5. Active disease vs. inactive disease over the course of follow up
  2. Relationship between psychosocial factors persistent abdominal pain, and remission status, specifically in patients with:

    1. Inactive IBD vs. active IBD
    2. Inactive IBD vs. IBS/FAP
    3. We will compare the parental report to patient report in the above mentioned groups
  3. Relationship between gene expression, microbiome, persistent abdominal pain, and remission status, specifically in patients with:

    1. Inactive IBD vs. active IBD
    2. Inactive IBD vs. IBS/FAP
    3. Inactive IBD vs. controls with no abdominal pain
02

Conditions studied

03

In context

Intestinal Diseases

963 studies on the registry are indexed under Intestinal Diseases; 174 are open to participants now.

This study's enrollment of 126 is close to the median of 140 across 377 observational studies indexed under Intestinal Diseases.

Browse Intestinal Diseases studies →

Lead sponsor

Connecticut Children's Medical Center is the lead sponsor of 58 studies on the registry; 14 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 3 (60%) have results posted.

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

04

Who can participate

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

Study population

The study participants will be recruited from the GI clinic here at Connecticut Children's Medical Center

Inclusion criteria

  • Age ≥ 8 years or \< 18 years (achieved 8th birthday but not yet their 18th birthday)
  • IBD established by standard criteria
  • Anticipated availability for follow up for ≥ 1 year
  • Informed consent/assent

Exclusion criteria

Exclusion Criteria:

  • Prior abdominal surgery unrelated to IBD
  • Active gastrointestinal infection at time of diagnosis (e.g., C. difficile)
  • Other co-morbidities that contribute to abdominal pain (e.g., Familial Mediterranean Fever, metabolic disease)
  • Preexisting chronic pain disorder (e.g., fibromyalgia)
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
126 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • IBD w/abdominal pain

    Patients with IBD with abdominal pain. Extra colonic biopsies for RNA analysis. If blood and stool samples are collected for standard of care:blood analyzed for both genomic DNA and calprotectin, and stool analyzed for microbiome. If no blood is drawn then a buccal swab done for the genomic DNA analysis and stool analyzed for calprotectin. Pain questionnaires: Pain Frequency-Severity-Duration Scale Pain Catastrophizing Scale-Child Version Pain Burden Interview Pediatric Quality of Life Inventory Adolescent Pediatric Pain Tool Anxiety/Depression Questionnaires Revised Children's Anxiety and Depression Scale Children's Somatization Inventory Adult Responses to Children's Symptoms

    Genetic: Genomic DNA · Genetic: RNA analysis · Genetic: Microbiome · Other: Calprotectin · Other: Pain questionnaires · Other: Anxiety/Depression Questionnaires

  • IBD w/out abdominal pain

    Patients with IBD and no abdominal pain. Colonoscopy done for standard of care, extra colonic biopsies for RNA analysis. If blood and stool samples are collected for standard of care:blood analyzed for genomic DNA and calprotectin and stool analyzed for microbiome. If no blood is drawn then a buccal swab for the genomic DNA analysis and stool analyzed for calprotectin. Pain questionnaires: Pain Frequency-Severity-Duration Scale Pain Catastrophizing Scale-Child Version Pain Burden Interview Pediatric Quality of Life Inventory Adolescent Pediatric Pain Tool Anxiety/Depression Questionnaires Revised Children's Anxiety and Depression Scale Children's Somatization Inventory Adult Responses to Children's Symptoms

    Genetic: Genomic DNA · Genetic: RNA analysis · Genetic: Microbiome · Other: Calprotectin · Other: Pain questionnaires · Other: Anxiety/Depression Questionnaires

  • Colonoscopy other reasons no abd pain

    Patients who have a colonoscopy for other reasons, rectal bleeding or polyp surveillance, no abdominal pain. Extra colonic biopsies for RNA analysis. If blood and stool samples are collected for standard of care:blood analyzed for genomic DNA and calprotectin and stool analyzed for microbiome. If no blood is drawn then a buccal swab for the genomic DNA analysis and stool analyzed for calprotectin.

    Genetic: Genomic DNA · Genetic: RNA analysis · Genetic: Microbiome · Other: Calprotectin

Interventions

  • GeneticGenomic DNA

    blood draw

  • GeneticRNA analysis

    Mucosal Biopsy via colonoscopy

  • GeneticMicrobiome

    Stool microbiome

  • OtherCalprotectin

    stool or blood analysis for calprotectin

  • OtherPain questionnaires

    PSDS PCS-C/P PBI APPT

  • OtherAnxiety/Depression Questionnaires

    RCADS-25 CSI-24 ARCS

06

What researchers measure

Primary outcomes

  1. Changes in abdominal pain from baseline at 3, 6, 9, and 12 months will be assessed using questionnaires

    Changes in abdominal pain from baseline then assessed again at 3, 6, 9, and 12 months.

    Time frame: Assessed at baseline then at months 3, 6, 9, and 12

07

Study locations

1 site
  • CT Children's Medical Center
    Hartford, Connecticut 06106, United States
08

References and documents

Publications

  • Grossi V, Hyams JS, Glidden NC, Knight BE, Young EE. Characterizing Clinical Features and Creating a Gene Expression Profile Associated With Pain Burden in Children With Inflammatory Bowel Disease. Inflamm Bowel Dis. 2020 Jul 17;26(8):1283-1290. doi: 10.1093/ibd/izz240. PubMed 31627210 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 8, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02984059
Lead sponsor
Connecticut Children's Medical Center
Responsible party
Victoria Grossi (Pediatric Fellow/GI Department, Connecticut Children's Medical Center) — Principal investigator
First posted
Dec 6, 2016
Start date
Oct 21, 2015
Primary completion
Aug 1, 2018
Completion
Aug 1, 2018
Last update
Feb 8, 2019

Study contacts

Victoria Grossi, DO
principal investigator · Connecticut Children's Medical Center

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2019. You cannot join it, but the record below documents what was studied.

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