Targeted Food Elimination for Treatment of Functional Gastrointestinal Diseases in Children

NCT02565355 | Completed

• 1 other identifier: 106580
• Study Type: interventional
• Target: 60
• Locations: 0 countries
• Sites: N/A

Brief Summary

Recurrent Abdominal Pain (RAP) in children is common and causes significant functional impairment and poor quality of life. Lifestyle factors such as diet, anxiety, and stress are important triggers of abdominal pains, but there is lack of high quality research evidence on optimal treatment modalities in children. This study aims to evaluate the effect of food elimination on abdominal pain frequency and severity in a cohort of children with abdominal pain associated Functional Gastrointestinal Diseases (FGID). The primary outcome will be a comparison of abdominal pain frequency and severity between standard therapy and targeted food elimination, based on IgG antibody results to a multiple food antigen panel. The investigators anticipate that 'targeted dietary elimination' as a treatment strategy will resolve abdominal pain and improve quality of life in children.

Conditions

Functional Gastrointestinal Disorders; Functional Abdominal Pain Syndrome; Abdominal Pain (AP)

Keywords

Pediatric Gastroenterology

Outcome Measures

Primary Outcomes (1)

• Abdominal Pain Index: Child Form and Parent Proxy Form

  Primary Outcome: The Abdominal Pain (AP) frequency and severity is calculated in each clinic visit using a 4 point questionnaire - the validated Abdominal Pain Index (API): Child Form and Parent Proxy form for age range 8 to 18 years. For age range 5 to 7 years, only the Abdominal Pain Index: Parent proxy form will be used. The 4 point scale measures the frequency of abdominal pain (Scores range 0-none to 5-every day and constant), duration of abdominal pain (scores range 0-no pain to 5-all day) and severity of abdominal pain (scores range from 0-no pain to 10-most pain). Improvement in AP is defined as \>50% reduction in frequency and severity of AP in food elimination and standard treatment groups.

  4 week run in period to Visit 5 (Week 16)

Secondary Outcomes (2)

• KINDL Questionnaire for Measuring Health-Related Quality of Life in Children and Adolescents

  4 week run in period to Visit 5 (Week 16)

• Patient Compliance

  4 week run in period to Visit 5 (Week 16)

Study Arms (2)

Lifestyle Modification/Dietary Exclusion

OTHER

In the lifestyle modification group, where specific IgG antibodies to foods are identified, the intervention is appropriate dietary elimination. The IgG antibody results will be disclosed and specific dietary elimination advice will be provided by an experienced dietician; provide diet alternatives to prevent nutritional deficiencies and improve adherence to diet. To improve compliance, a maximum of 2 high IgG positive foods will be eliminated at any one time in each 4 week period. Children will be followed-up in PG clinic at 4-weekly intervals for 16 weeks. Response is defined as more than 50% improvement in frequency and severity of abdominal pain. They will be assessed at visits 2, 3, 4 and 5 for follow-up, and non-responders, will cross over to the other arm of the study.

Other: Dietary Exclusion

The Standard Treatment Group

OTHER

The standard therapy group will not receive results of IgG antibody testing. The patients will receive conventional treatment for Abdominal Pain as per usual practice at the Pediatric GI (PG) Clinic - counseling, reassurance, improving coping strategies and pain relief as appropriate. Children will be followed-up in PG clinic at 4-weekly intervals for 16 weeks. Response is defined as more than 50% improvement in frequency and severity of abdominal pain. They will be assessed at visits 2, 3, 4 and 5 for follow-up, and non-responders, will cross over to the other arm of the study.

Other: Standard Treatment

Interventions

Dietary Exclusion OTHER

The IgG antibody results will be disclosed ONLY to the patients in the lifestyle modification group by phone approximately one week after clinic visit.. 'Dietary Exclusion' will be advised by a dietitian. Patients are advised to eliminate a maximum of two foods as identified by high IgG antibody titres.

Lifestyle Modification/Dietary Exclusion

Standard Treatment OTHER

The standard therapy group will receive conventional treatment for Abdominal Pain as per usual practice at the Pediatric GI (PG) Clinic - counseling, reassurance, improving coping strategies and pain relievers as appropriate.

The Standard Treatment Group

Eligibility Criteria

• Age: 5 Years - 18 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Children 5-18 years of age with a diagnosis of Abdominal Pain-related FGIDs (Functional Abdominal Pain , FAP syndrome, Functional Dyspepsia, Irritable Bowel Syndrome, Abdominal Migraine) as defined by the Rome 3 criteria.
• Acquisition of informed consent

You may not qualify if:

• Children less than 5 years of age
• Organic cause of abdominal pain established by investigations (e.g. Crohn's disease)
• Diagnosis of failure-to-thrive or co-morbid chronic physical disease (e.g., Diabetes)
• Any medical condition that in the opinion of the investigator would be unsafe for trial participation.
• Lack of follow-up or failure to comply with study procedures.

Sponsors & Collaborators

• London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's: lead
• University of Western Ontario, Canada: collaborator

Related Publications (13)

• Rasquin A, Di Lorenzo C, Forbes D, Guiraldes E, Hyams JS, Staiano A, Walker LS. Childhood functional gastrointestinal disorders: child/adolescent. Gastroenterology. 2006 Apr;130(5):1527-37. doi: 10.1053/j.gastro.2005.08.063.

  PMID: 16678566 BACKGROUND

• Miele E, Simeone D, Marino A, Greco L, Auricchio R, Novek SJ, Staiano A. Functional gastrointestinal disorders in children: an Italian prospective survey. Pediatrics. 2004 Jul;114(1):73-8. doi: 10.1542/peds.114.1.73.

  PMID: 15231910 BACKGROUND

• Crandall WV, Halterman TE, Mackner LM. Anxiety and pain symptoms in children with inflammatory bowel disease and functional gastrointestinal disorders undergoing colonoscopy. J Pediatr Gastroenterol Nutr. 2007 Jan;44(1):63-7. doi: 10.1097/01.mpg.0000239733.79487.1e.

  PMID: 17204955 BACKGROUND

• Varni JW, Lane MM, Burwinkle TM, Fontaine EN, Youssef NN, Schwimmer JB, Pardee PE, Pohl JF, Easley DJ. Health-related quality of life in pediatric patients with irritable bowel syndrome: a comparative analysis. J Dev Behav Pediatr. 2006 Dec;27(6):451-8. doi: 10.1097/00004703-200612000-00001.

  PMID: 17164617 BACKGROUND

• Christensen MF, Mortensen O. Long-term prognosis in children with recurrent abdominal pain. Arch Dis Child. 1975 Feb;50(2):110-4. doi: 10.1136/adc.50.2.110.

  PMID: 1130815 BACKGROUND

• Huertas-Ceballos A, Logan S, Bennett C, Macarthur C. Dietary interventions for recurrent abdominal pain (RAP) and irritable bowel syndrome (IBS) in childhood. Cochrane Database Syst Rev. 2008 Jan 23;(1):CD003019. doi: 10.1002/14651858.CD003019.pub2.

  PMID: 18254014 BACKGROUND

• Huertas-Ceballos AA, Logan S, Bennett C, Macarthur C, Martin AE. WITHDRAWN: Pharmacological interventions for recurrent abdominal pain (RAP) and irritable bowel syndrome (IBS) in childhood. Cochrane Database Syst Rev. 2014 Feb 17;2014(2):CD003017. doi: 10.1002/14651858.CD003017.pub3.

  PMID: 24532249 BACKGROUND

• American Academy of Pediatrics Subcommittee on Chronic Abdominal Pain; North American Society for Pediatric Gastroenterology Hepatology, and Nutrition. Chronic abdominal pain in children. Pediatrics. 2005 Mar;115(3):e370-81. doi: 10.1542/peds.2004-2523.

  PMID: 15741363 BACKGROUND

• Ong DK, Mitchell SB, Barrett JS, Shepherd SJ, Irving PM, Biesiekierski JR, Smith S, Gibson PR, Muir JG. Manipulation of dietary short chain carbohydrates alters the pattern of gas production and genesis of symptoms in irritable bowel syndrome. J Gastroenterol Hepatol. 2010 Aug;25(8):1366-73. doi: 10.1111/j.1440-1746.2010.06370.x.

  PMID: 20659225 BACKGROUND

• Carlson MJ, Moore CE, Tsai CM, Shulman RJ, Chumpitazi BP. Child and parent perceived food-induced gastrointestinal symptoms and quality of life in children with functional gastrointestinal disorders. J Acad Nutr Diet. 2014 Mar;114(3):403-413. doi: 10.1016/j.jand.2013.10.013. Epub 2013 Dec 19.

  PMID: 24360501 BACKGROUND

• Chumpitazi BP, Cope JL, Hollister EB, Tsai CM, McMeans AR, Luna RA, Versalovic J, Shulman RJ. Randomised clinical trial: gut microbiome biomarkers are associated with clinical response to a low FODMAP diet in children with the irritable bowel syndrome. Aliment Pharmacol Ther. 2015 Aug;42(4):418-27. doi: 10.1111/apt.13286. Epub 2015 Jun 24.

  PMID: 26104013 BACKGROUND

• Laird KT, Sherman AL, Smith CA, Walker LS. Validation of the Abdominal Pain Index using a revised scoring method. J Pediatr Psychol. 2015 Jun;40(5):517-25. doi: 10.1093/jpepsy/jsu118. Epub 2015 Jan 22.

  PMID: 25617048 BACKGROUND

• Erhart M, Ellert U, Kurth BM, Ravens-Sieberer U. Measuring adolescents' HRQoL via self reports and parent proxy reports: an evaluation of the psychometric properties of both versions of the KINDL-R instrument. Health Qual Life Outcomes. 2009 Aug 26;7:77. doi: 10.1186/1477-7525-7-77.

  PMID: 19709410 BACKGROUND

MeSH Terms

Conditions

Gastrointestinal Diseases; Abdominal Pain

Condition Hierarchy (Ancestors)

Digestive System Diseases; Pain; Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms; Signs and Symptoms, Digestive

Study Officials

• Dhandapani Ashok, MD

  Children's Hospital of Western Ontario

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: September 9, 2015
• First Posted: October 1, 2015
• Study Start: September 1, 2015
• Primary Completion: August 1, 2017
• Study Completion: August 1, 2017
• Last Updated: October 3, 2017

Record last verified: 2017-08