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Abdominal Symptom Phenotype Study in Children (ASPPNB)

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ClinicalTrials.gov Identifier: NCT01204515
Recruitment Status : Completed
First Posted : September 17, 2010
Last Update Posted : February 6, 2013
Information provided by (Responsible Party):

September 16, 2010
September 17, 2010
February 6, 2013
June 2010
August 2012   (Final data collection date for primary outcome measure)
  • Compare biomarkers (tests) on girls with and without IBS [ Time Frame: Two Days ]
    Biomarkers: Proteomic analysis of urine samples; Results of video capsule endoscopy (VCE) using the PillCam; Serum lymphocyte activation and cytokine levels (IL-8, IL-10 and IL-12) Responses to DNIC procedure;
  • Compare the response of stress in girls with and without IBS [ Time Frame: One Day ]
    Salivary cortisol levels prior to and after the diffuse noxious inhibitory control (DNIC) procedure; Psychological characteristics of the child and mother
Same as current
Complete list of historical versions of study NCT01204515 on ClinicalTrials.gov Archive Site
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Abdominal Symptom Phenotype Study in Children
Abdominal Symptom Phenotype: Pathways to New Biomarkers

Children and adults commonly suffer from recurrent abdominal (stomach) pain. One type is called irritable bowel syndrome (IBS). IBS in adults and children is one of the most common and costly health care problems in the US. Some children have pain frequently (recurrent pain) while others rarely have pain. The investigators are conducting this study to help us answer questions about the causes and treatments, and management of IBS in children.

The purpose of this study is to find out if there is more than one type of IBS in children. If there is, this will be important in deciding the best treatments. The investigators also want to learn how children with IBS differ from those who do not have recurrent abdominal (stomach) pain.

Functional gastrointestinal (GI) disorders (FGIDs), in particular irritable bowel syndrome (IBS) in adults and children, are among the most common and costly health care problems in the US. IBS disproportionately affects adult women (10-15% in western nations) and adolescent girls. Yet, health care providers remain challenged to provide effective clinical management. The etiology of IBS is not well defined and likely multi-factorial.

A Need to Define Subgroups of IBS:

This study emerges from the claim that identification of patient subgroups will advance our understanding of IBS and ultimately help develop treatment approaches. Most studies have lumped together patients with IBS into 2 groups (constipation-, diarrhea-predominant) and tested whether they differ from healthy controls. We propose that a paradigm shift is in order. We should recognize that IBS likely has multiple causes and therefore, multiple expressions. We speculate that by understanding better defined patient subgroups and linking them to newer biomarkers or tests, ultimately will further the understanding of the origins and create effective treatments.

Observational Model: Case Control
Time Perspective: Prospective
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Retention:   Samples With DNA
We will be banking DNA for future analysis. The samples will be retained according to the legal and ethical laws.
Non-Probability Sample

We are studying only girls in this exploratory study because IBS is more common in girls than boys and the results of these studies can be compared with the results from studies of IBS in adults where the overwhelming number of patients are women.

Girls who meet the Rome III criteria for IBS or healthy girls with no complaints of stomach pain.

Irritable Bowel Syndrome (IBS)
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  • Girls with IBS
    Girls ages 7-12 years who meet Rome III criteria for IBS
  • Healthy Girls (controls)
    Girls ages 7-12 years who are otherwise healthy and have no complaints of stomach pain

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
August 2012
August 2012   (Final data collection date for primary outcome measure)

Inclusion Criteria:


  • Age 7-12 years
  • Females
  • Meet criteria for irritable bowel syndrome without evidence of organic disease
  • Developmentally normal
  • English speaking (as the psychological measures are either not available or validated in Spanish)
  • No other chronic, significant (e.g., diabetes, migraines) medical conditions
  • No menses


  • Age 7-12 years
  • Females
  • No abdominal pain
  • No GI or chronic medical conditions (e.g., diabetes)
  • Developmentally normal
  • English speaking (as the psychological measures are not available or validated in Spanish)
  • No menses

Exclusion Criteria:

  • Non-english speaking
  • Developmentally or cognitively impaired
  • Males
  • Menses
  • No mother in the household for administration of the psychological measures
  • Use of any anti-depressants
  • History of migraines or chronic pain disorders
  • On narcotics for at least 1 week prior to enrollment
  • On any NSAIDs or pain reliever for at least 24 hours prior to enrollment
  • Sought psychotherapy in past 6 months for abdominal pain
Sexes Eligible for Study: Female
7 Years to 12 Years   (Child)
Contact information is only displayed when the study is recruiting subjects
United States
RC2NR011959 ( U.S. NIH Grant/Contract )
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Robert Shulman, M.D., Baylor College of Medicine
Baylor College of Medicine
  • National Institute of Nursing Research (NINR)
  • University of Washington
Principal Investigator: Robert J Shulman, M.D. Baylor College of Medicine, Texas Children's Hospital
Baylor College of Medicine
February 2013