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Observational Study for Autism Spectrum Disorder

This is an observational study looking at people with Autism Spectrum Disorder (ASD). Researchers want to understand different groups of people within ASD by studying their clinical features and biological markers. The goal is to find ways to identify which patients might respond best to certain medications in the future. You can join if you are between 12 and 65 years old, have an ASD diagnosis, and have well-documented health records from your first two years of life. You also need a parent or caregiver who can provide information about you. The study aims to enroll 1500 participants. The current recruitment status is unclear.

Study design
This is an observational study, meaning researchers will collect information without giving any specific treatments. It aims to enroll 1500 participants.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Information will be collected at Day 0 to characterize different groups of patients.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT05590715

International Multicentric Observational Study to Characterize Subpopulations of Patients With Autism Spectrum Disorder

Recruiting
Not specifiedAges 12–65Observational
Stalicla SA
~1,500 participants
Updated 2026-04-27 on ClinicalTrials.gov

At a glance

Recruiting sites
11 of 21 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Clinical characterisation of the ASD-Phen1 and ASD-Phen2 subpopulations.
Measured over Day 0
+1 more outcome measured

Conditions

Autism Spectrum Disorder

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NCT05590715

Where you'd take part

This study runs at 21 sites. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • California Neuroscience Research

    Sherman Oaks, Californiastudy coordinator listed

    Recruiting

  • Locuspsych

    Melbourne, Victoria, Australiastudy coordinator listed

    Recruiting

  • SARRC

    Phoenix, Arizonastudy coordinator listed

    Recruiting

  • Alpine Research Organization

    Clinton, Utahno site contact published

    Recruiting

  • Children's Health Queensland Hospital and Health Service

    South Brisbane, Queensland, Australiano site contact published

    Not yet recruiting

  • Flinders Medical Centre

    Bedford Park, South Australia, Australiano site contact published

    Not yet recruiting

  • Hospital Álvaro Cunqueiro

    Vigo, Spainno site contact published

    Recruiting

  • Hospital Clinic of Barcelona

    Barcelona, Spainno site contact published

    Recruiting

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

Study leadership

  • Paulo Fontoura, MD, PhD · STUDY_DIRECTOR · Stalicla SA

Who to contact

Eric Painbeni, PhD
[email protected]
+41 22 545 12 42
Email the study team

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Eligibility criteria

Inclusion

Participants previously diagnosed with ASD (DSM-5)
Available well-documented health records within the first 2 years of life
Participants must have a parent or reliable caregiver who agrees to provide information about the participant
Participants willing and consenting or assenting to participate.

Exclusion

Episode of fever (i.e. ≥100.5 °F or ≥ 38 °C) or clinically significant illness without fever (as judged by the investigator), within 10 days before any study assessment.
If the investigator assesses any unwillingness or any medical condition that may prevent the subject from completing this study.

What this trial measures

  • Clinical characterisation of the ASD-Phen1 and ASD-Phen2 subpopulations.Day 0

    A semi-structured medical questionnaire will be administered to collect clinical (sign and symptoms) and anthropomorphic features.

  • Molecular characterization of the ASD-Phen1 and ASD-Phen2 subpopulationsDay 0

    Better characterize subpopulations of ASD subjects and potentially identify/confirm a molecular signature specific of each subpopulation.