NCT02280746

Brief Summary

BACKGRUOUND: Autism spectrum disorder (ASD) is a common condition. The etiology of ASD remains unknown. Recent studies suggest a link between elimination diets and severity of autistic symptoms. The possible effects of a gluten-free diet (GFD) on symptoms remain unknown. AIM: The aim of the study is to evaluate the impact of gluten challenge on the autistic symptoms in children with autism spectrum disorders (ASD) and on a gluten-free diet (GFD) in comparison to individuals continuing GFD. METHODS: 70 children with ASD aged 3-5 and 11/12 remaining on GFD for at least 8 weeks will be randomly assigned to gluten-free and gluten-challenge diet.

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
70

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Sep 2014

Geographic Reach
1 country

1 active site

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

September 1, 2014

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

October 29, 2014

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 31, 2014

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2015

Completed
Last Updated

October 31, 2014

Status Verified

October 1, 2014

Enrollment Period

1.2 years

First QC Date

October 29, 2014

Last Update Submit

October 29, 2014

Conditions

Outcome Measures

Primary Outcomes (1)

  • The extent of autistic symptoms based on the Autism Diagnostic Observation Schedule - 2 (ADOS-2)

    Change over time - 6 months

Secondary Outcomes (6)

  • The severity of symptoms based on a Social Communication Questionnaire (SCQ)

    Change over time - 6 months

  • Presentation of gastrointestinal (GI) functional disorders (evaluation based on a parent-report form - Rome III diagnostic questionnaire

    Before, after 12 weeks and at the end of intervention

  • The extent of adaptive level of functioning on Vineland Adaptive Behavior Scale (VABS)

    Change over time - 6 months

  • The extent of functioning on Autism Spectrum Rating Scale (ASRS)

    Change over time - 6 months

  • Anthropometry

    Change over time - 6 months

  • +1 more secondary outcomes

Study Arms (2)

A - gluten challenge group

EXPERIMENTAL

Gluten challenge group - recommended daily intake of at least one normal meal containing gluten such as bread, pita, pasta, biscuits.

Other: Gluten challenge

B - gluten-free diet

NO INTERVENTION

Continuation of GFD.

Interventions

Intervention will be continued for at least 6 months

A - gluten challenge group

Eligibility Criteria

Age3 Years - 6 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Children aged 3-5 and 11/12 years with a diagnosis of ASD
  • GFD for at least 8 weeks prior to enrollment
  • Minimal scores of 15 on SCQ
  • Minimal scores 70 points on Leiter scale
  • Consent of caregivers to participate in the study

You may not qualify if:

  • Gluten-mediated disease (celiac disease, wheat allergy)
  • Lack of motivation / opportunity to follow a diet
  • Malnutrition (defined according World Health Organization - WHO standards as weight for height \<-2 SDS - Standard Deviation Scores)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University of Warsaw

Warsaw, Warsaw, Poland

RECRUITING

Related Publications (1)

  • Piwowarczyk A, Horvath A, Pisula E, Kawa R, Szajewska H. Gluten-Free Diet in Children with Autism Spectrum Disorders: A Randomized, Controlled, Single-Blinded Trial. J Autism Dev Disord. 2020 Feb;50(2):482-490. doi: 10.1007/s10803-019-04266-9.

MeSH Terms

Conditions

Autism Spectrum Disorder

Condition Hierarchy (Ancestors)

Child Development Disorders, PervasiveNeurodevelopmental DisordersMental Disorders

Study Officials

  • Andrea Horvath

    Medical University of Warsaw

    STUDY DIRECTOR

Central Study Contacts

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

October 29, 2014

First Posted

October 31, 2014

Study Start

September 1, 2014

Primary Completion

December 1, 2015

Study Completion

December 1, 2015

Last Updated

October 31, 2014

Record last verified: 2014-10

Locations