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Metabolic Profiling

Healthy matched controls for Autism Spectrum Disorder (ASD Trial)

N/A
Waitlist Available
Led By Marielle Engelen, PhD
Research Sponsored by Texas A&M University
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 2, 5, 10, 15, 20, 30, 40, 50, 60, 90, 120, 150, 180, 210 and 240 ± 5 minutes
Awards & highlights

ASD Trial Summary

The objective of this study is to gain preliminary information and knowledge on metabolic profile in ASD. The benefit of this study will be to expand our insight of the potential relationship in metabolic processes and neuropsychological functions in ASD. For example, based on the obtained data of the study we can determine whether there is a link between the tryptophan pathway and cognitive functions in autism. The project is based on a systematic and multidisciplinary approach using tracers for delineating the mechanism by which the metabolism of amino acids like TRP is involved in affective and cognitive functions in ASD. Using an innovative approach to the evaluation of amino acids has not been used in adults with ASD. In addition, the obtained data of the study holds promise to develop specific markers (metabolic and/or neuropsychological) for guiding the identification those individuals with increased risk of developing mood disturbances or cognitive impairment, and for predicting the therapeutic effect of a specific nutritional interventions in subjects with ASD.

Eligible Conditions
  • Autism Spectrum Disorder
  • Autism

ASD Trial Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~2, 5, 10, 15, 20, 30, 40, 50, 60, 90, 120, 150, 180, 210 and 240 ± 5 minutes
This trial's timeline: 3 weeks for screening, Varies for treatment, and 2, 5, 10, 15, 20, 30, 40, 50, 60, 90, 120, 150, 180, 210 and 240 ± 5 minutes for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Tryptophan turnover
Secondary outcome measures
Adolescent/Adult Sensory Profile
Group differences in attention and executive functions as measured by Brief-A
Group differences in attention and executive functions as measured by PASAT
+14 more

ASD Trial Design

2Treatment groups
Experimental Treatment
Group I: Healthy matched controlsExperimental Treatment1 Intervention
Study Day: The subject will arrive fasted. A catheter will be inserted in the arm for stable isotope infusion and blood sampling. The hand of the arm used for blood sampling will be placed in a thermostatically controlled warmed box that heats the air. Immediately after a baseline blood sample is taken, an infusion with stable isotopes will be administered by the research nurse. Stable isotopes are given to measure amino acid metabolism. Blood samples will be collected before and/or after infusion. Subjects will be asked to complete a list of questions regarding quality of life, mood and depression, diet.
Group II: Adults with Autism Spectrum DisorderExperimental Treatment1 Intervention
The subject will arrive fasted. A catheter will be inserted in the arm for stable isotope infusion and blood sampling. The hand of the arm used for blood sampling will be placed in a thermostatically controlled warmed box that heats the air. Immediately after a baseline blood sample is taken, an infusion with stable isotopes will be administered by the research nurse. Stable isotopes are given to measure amino acid metabolism. Blood samples will be collected before and/or after infusion. Subjects will be asked to complete a list of questions regarding quality of life, mood and depression, diet.

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Who is running the clinical trial?

Texas A&M UniversityLead Sponsor
140 Previous Clinical Trials
24,066 Total Patients Enrolled
Marielle Engelen, PhDPrincipal InvestigatorTexas A&M University
6 Previous Clinical Trials
296 Total Patients Enrolled

Frequently Asked Questions

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~4 spots leftby Apr 2025