Overview

This trial is active, not recruiting.

Conditions autism, autism spectrum disorder
Sponsor Intersci Research Association, Austria
Start date September 2010
End date July 2011
Trial size 160 participants
Trial identifier NCT01197131, protocol 1.0/18/06/2010

Summary

Deviation of hormone formation within nerve cells and nerve system provides autism spectrum disorder and neurodevelopment retardation through interaction of steroids with neurotransmitter-receptors, calcium-channel receptors and genomic interaction via nuclear steroid receptors.

Urinary steroid metabolites will be compared between children with autism spectrum disorder and healthy controls.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Observational model cohort
Time perspective prospective
Arm
Boys with autism spectrum disorder, age 5-15 years, diagnosis meets DSM-IV criteria ascertained by ADI-R or ADOS schedule or specialised paediatrician
Girls with autism spectrum disorder, age 5-15 years, diagnosis meets DSM-IV criteria ascertained by ADI-R or ADOS schedule or specialised paediatrician.
Healthy boys, age 5-15 years, mental status assessed by "Marburger Beurteilungsskala zum Asperger-Syndrome" (MBAS).
Healthy girls, age 5-15 years, mental status assessed by "Marburger Beurteilungsskala zum Asperger Syndrome" (MBAS).

Primary Outcomes

Measure
difference in hormone formation and androgen precursors
time frame: 3 years

Secondary Outcomes

Measure
difference in hormone formation in gender and age
time frame: 3 years

Eligibility Criteria

Male or female participants from 5 years up to 15 years old.

Inclusion Criteria: - Autism spectrum disorder - Age 5-15 years Exclusion Criteria: - Epilepsia - Psychotropic medication - other severe illness

Additional Information

Official title Investigation of Urinary Steroid Metabolites in Children With Autism Spectrum Disorder
Principal investigator Johann Kurz, MD
Description Autism spectrum disorder presents many alterations in amino acid metabolism and in neurotransmitter systems (gamma amino acid system, glutamate-glutamine, nicotine-acid, serotonin-system) . Also alteration in gene activation within nerve cells and lymphocyte cultures encloses over 600 genes, affecting a wide field of enzymes , metabolic pathways and hormone formation. Male hormones and their precursors are often increased and their influence to nerve cell growth and spine formation is evident. The diagnosis of autism spectrum disorder is made in accordance of criteria of the Diagnostic and Statistical Manual of Mental Disorders IV (DSM-IV) of the American Psychiatric Association by an experienced and specialised paediatrician or psychologist and /or by an Autism Diagnostic Interview-Revised (ADI-R) or Autism Diagnostic Observation Schedule (ADOS) . Overnight urine with measurement of quantity and time will be collected and a little part of the urinary samples will be frozen for storage till analysis. Age, weight and length of the children at collection time will be ascertained. Four stratified groups (autistic boys, girls, and healthy controls, boys and girls, each age 5-15) will be formed. Urinary samples will further remain anonymous through an Identification-Number (ID). Analysis of hormones and the most of the known metabolites excreted in urine will be performed by a specialised laboratory using gas chromatography-mass spectrometry (GC/MS) analysis (University Hospital Bern, Steroid Laboratory, Switzerland). The statistical analysis, with age, gender, weight, diagnosis and hormone analysis results as factors , consists in linear regression analysis to detect deviation in hormone formation and metabolism.
Trial information was received from ClinicalTrials.gov and was last updated in June 2016.
Information provided to ClinicalTrials.gov by Intersci Research Association, Austria.