Investigation of the Genetic and Environmental Causes of Autism: a Multi-Center Study
ASD-Omics-TR
A Multi-Center Multi-Omics Approach for Investigating Genetic and Epigenetic Mechanisms in Autism Spectrum Disorder
2 other identifiers
observational
3,000
1 country
20
Brief Summary
The goal of this observational study is to investigate the genetic and epigenetic mechanisms that may contribute to the development of Autism Spectrum Disorder (ASD) in individuals of different age groups. The study aims to explore how genetic variants and environmental factors interact to influence the risk of ASD. The main questions it aims to answer are:
- Which genetic variants are most strongly associated with the development of ASD?
- How do environmental factors, such as prenatal exposure, influence these genetic risks?
- Can the combination of genetic and epigenetic data improve early detection or intervention strategies for ASD? Participants will:
- Provide biological samples for genetic and epigenetic analysis.
- Complete detailed questionnaires regarding environmental exposures and family history.
- Participate in clinical assessments to evaluate the severity of ASD symptoms. Researchers will compare genetic and environmental data between individuals with ASD and those without the disorder to understand how these factors may contribute to the risk of ASD. This multi-center study will take place across several universities and hospitals in Türkiye, focusing on the potential interplay between inherited genetic factors and environmental influences.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Dec 2025
Typical duration for all trials
20 active sites
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
First Submitted
Initial submission to the registry
October 24, 2024
CompletedFirst Posted
Study publicly available on registry
October 29, 2024
CompletedStudy Start
First participant enrolled
December 27, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 27, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
May 27, 2028
October 29, 2024
October 1, 2024
2 years
October 24, 2024
October 24, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Finalization of Clinical Data Recruitment
The primary outcome will be the recruitment of individuals diagnosed with Autism Spectrum Disorder (ASD) and unaffected controls. Comprehensive clinical, sociodemographic, and phenotypic data will be collected, including diagnostic assessments using standardized tools (e.g., ADOS, SCQ).
Expected to complete within 24 months of study initiation.
Secondary Outcomes (2)
Collection and Completion of Genetic Raw Data (WGS and WGBS)
Expected to complete within 30 months of study initiation
Integration of Genetic Data
Expected to complete within 60 months of study initiation.
Other Outcomes (1)
Complete (Final) Outcome Measure : Association Between Clinical and Genetic Data
Expected within 66 months, after all data collection and analysis stages have been completed.
Study Arms (3)
ASD Case Group
Represents individuals diagnosed with Autism Spectrum Disorder (ASD), who will undergo genetic, epigenetic, and transcriptomic analysis.
Control Group
Represents unaffected individuals, serving as the comparison group for genetic and molecular analyses.
HOT Cluster Biomarker Group
Represents participants selected after secondary outcome results based on HOT cluster analysis, who will undergo ELISA to study potential biomarkers derived from RNA transcriptome pathway analysis.
Eligibility Criteria
The study population will consist of individuals diagnosed with Autism Spectrum Disorder (ASD) or exhibiting autism-like traits, selected from clinical centers specializing in neurodevelopmental disorders. The population will also include a healthy control group, matched by age, gender, and socio-demographic variables, recruited from the general community. The ASD cohort will include participants across a range of functional levels, from high-functioning to low-functioning autism, as well as those with developmental profiles and comorbid conditions. Controls will be free of psychiatric or neurological diagnoses and chronic conditions.
You may qualify if:
- Healthy Control Group: Age-, gender-, and socio-demographically matched individuals without any psychiatric or neurological disorder.
- ASD Individuals of Varying Functional Levels: Participants with ASD from a broad range of functional abilities, from high-functioning to low-functioning autism.
- Informed Consent: Written informed consent from participants over 18 years of age. For participants under 18, consent from parents or legal guardians.
You may not qualify if:
- Known Genetic Syndromes or Chromosomal Anomalies: Individuals with genetic conditions such as Down syndrome or Fragile X syndrome.
- History of Genetic or Experimental Therapies: Participants with previous gene or cell therapy, frequent blood transfusions, or bone marrow transplants.
- Severe Communication or Cognitive Impairments: Participants with communication or cognitive disorders that would hinder their ability to participate in data collection, or those with aggressive behavioral disorders.
- Non-compliance or Medical Restrictions: Individuals unable to comply with study procedures or with medical conditions that prevent biological sample collection.
- \- Control Group: Healthy Individuals: Participants without ASD or any psychiatric or neurological disorders.
- Age and Gender Matching: Matched with the ASD group in terms of age, gender, and socio-demographic status.
- No History of Genetic or Neurodevelopmental Disorders: Individuals with no genetic syndromes, chromosomal anomalies, or neurodevelopmental disorders.
- No Chronic Disease History: Participants with no history of chronic diseases such as cancer, autoimmune diseases, or metabolic conditions.
- Informed Consent: Written informed consent from individuals over 18 years old or from parents/legal guardians for participants under 18.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Research and Treatment Society of Genetic Disorderslead
- İnvitrotek A.Ş.collaborator
- Selcuk Universitycollaborator
- Istanbul Cerrahpasa Faculty of Medicine, Department of Child and Adolescent Psychiatrycollaborator
- Istanbul Medeniyet University Faculty of Medicine, Department of Child and Adolescent Psychiatrycollaborator
- Ankara SBÜ Gülhane Faculty of Medicine, Department of Child and Adolescent Psychiatrycollaborator
- Ankara Gazi Faculty of Medicine, Department of Child and Adolescent Psychiatrycollaborator
- Izmir Katip Çelebi Faculty of Medicine, Department of Child and Adolescent Psychiatrycollaborator
- Şanlıurfa Harran University Faculty of Medicine, Department of Child and Adolescent Psychiatrycollaborator
- Erzurum Atatürk University Faculty of Medicine, Department of Child and Adolescent Psychiatrycollaborator
- Trabzon Karadeniz Technical University Faculty of Medicine, Department of Child and Adolescent Psychiatrycollaborator
- Denizli Pamukkale University Faculty of Medicine, Department of Child and Adolescent Psychiatrycollaborator
- Gaziantep University, Department of Child and Adolescent Psychiatrycollaborator
- Afyonkarahisar University of Health Sciences, Faculty of Medicine, Department of Child and Adolescent Psychiatrycollaborator
- Uludag Universitycollaborator
- Giresun University, Department of Child and Adolescent Psychiatrycollaborator
- Baskent Universitycollaborator
- Istanbul Medeniyet University, Department of Psychiatrycollaborator
- Necmettin Erbakan Universitycollaborator
- Istanbul Çam and Sakura City Hospital, Department of Child and Adolescent Psychiatrycollaborator
Study Sites (20)
Konya Selcuk University Faculty of Medicine, Department of Child and Adolescent Psychiatry
Konya, Selçuklu, 42250, Turkey (Türkiye)
Konya Selcuk University Faculty of Medicine, Department of Psychiatry
Konya, Selçuklu, 42250, Turkey (Türkiye)
Afyonkarahisar University of Health Sciences, Faculty of Medicine, Department of Child and Adolescent Psychiatry
Afyonkarahisar, Turkey (Türkiye)
Ankara Başkent University, Department of Psychiatry
Ankara, Turkey (Türkiye)
Ankara Gazi Faculty of Medicine, Department of Child and Adolescent Psychiatry
Ankara, Turkey (Türkiye)
Ankara SBÜ Gülhane Faculty of Medicine, Department of Child and Adolescent Psychiatry
Ankara, Turkey (Türkiye)
Bursa Uludağ University, Department of Child and Adolescent Psychiatry
Bursa, Turkey (Türkiye)
Denizli Pamukkale University Faculty of Medicine, Department of Child and Adolescent Psychiatry
Denizli, Turkey (Türkiye)
Erzurum Atatürk University Faculty of Medicine, Department of Child and Adolescent Psychiatry
Erzurum, Turkey (Türkiye)
Gaziantep University, Department of Child and Adolescent Psychiatry
Gaziantep, Turkey (Türkiye)
Giresun University, Department of Child and Adolescent Psychiatry
Giresun, Turkey (Türkiye)
Istanbul Cerrahpasa Faculty of Medicine, Department of Child and Adolescent Psychiatry
Istanbul, Turkey (Türkiye)
Istanbul Medeniyet University Faculty of Medicine, Department of Child and Adolescent Psychiatry
Istanbul, Turkey (Türkiye)
Istanbul Medeniyet University, Department of Psychiatry
Istanbul, Turkey (Türkiye)
Istanbul Çam and Sakura City Hospital, Department of Child and Adolescent Psychiatry
Istanbul, Turkey (Türkiye)
Izmir Katip Çelebi Faculty of Medicine, Department of Child and Adolescent Psychiatry
Izmir, Turkey (Türkiye)
Konya Necmettin Erbakan University Faculty of Medicine, Department of Child and Adolescent Psychiatry
Konya, Turkey (Türkiye)
Konya Selcuk University Faculty of Medicine, Department of Medical Genetics
Konya, Turkey (Türkiye)
Şanlıurfa Harran University Faculty of Medicine, Department of Child and Adolescent Psychiatry
Sanliurfa, Turkey (Türkiye)
Trabzon Karadeniz Technical University Faculty of Medicine, Department of Child and Adolescent Psychiatry
Trabzon, Turkey (Türkiye)
Related Publications (20)
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Biospecimen
1. Venous Blood Samples: Analysis: These will be used for Whole Genome Sequencing (WGS), Whole Genome Bisulfite Sequencing (WGBS) for DNA methylation analysis, and RNA-Whole Transcriptome analysis to assess gene expression. 2. Nasal Swab Samples: Analysis: These will be utilized for Whole Genome Bisulfite Sequencing (WGBS) for methylation analysis and RNA-Whole Transcriptome analysis to explore tissue-specific gene expression profiles. 3. Serum or Plasma Samples (from venous blood, Not from all case-controls): Analysis: These samples will be used for ELISA to quantify protein levels, such as cytokines, growth factors, or other biomarkers of interest in ASD. Purpose: ELISA will provide insights into the biological effects of genetic and epigenetic changes by assessing the corresponding protein expression levels in the blood.
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Ali Torabi, MD.,Ph.D.
Selçuk Üniversitesi Tıp Fakültesi Tıbbi Genetik Anabilim Dalı
- STUDY DIRECTOR
Ali Kandeğer, MD.
RUH SAĞLIĞI VE HASTALIKLARI Uzmanı / Konya Selçuk Üniversitesi Tıp Fakültesi- Ruh Sağlığı ve Hastalıkları Anabilim Dalı Anabilim Dalı
- STUDY DIRECTOR
Ömer Faruk Akça, MD.
Çocuk Ve Ergen Ruh Sağlığı Ve Hastalıkları Uzmanı /Konya Necmettin Erbakan Üniversitesi Tıp Fakültesi- Çocuk ve Ergen Ruh Sağlığı ve Hastalıkları Anabilim Dalı
- STUDY DIRECTOR
Nadir Koçak, MD
Tıbbi Genetik Uzmanı / Konya Selçuk Üniversitesi Tıp Fakültesi- Tıbbi Genetik Anabilim Dalı ve Genetik Hastaliklar Araştırma ve Tedavi Derneği(RTSGD) Yönetim kurulu üyesi
- STUDY DIRECTOR
Ebru Marzioğlu Özdemir, MD
Tıbbi Genetik Uzmanı / Konya Selçuk Üniversitesi Tıp Fakültesi- Tıbbi Genetik Anabilim Dalı ve Genetik Hastaliklar Araştırma ve Tedavi Derneği(RTSGD) Yönetim kurulu üyesi
- STUDY DIRECTOR
Özkan Bağcı, Ph.D.
Tıbbi Genetik Uzmanı / Konya Selçuk Üniversitesi Tıp Fakültesi- Tıbbi Genetik Anabilim Dalı ve Genetik Hastaliklar Araştırma ve Tedavi Derneği(RTSGD) Yönetim kurulu üyesi
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- PROSPECTIVE
- Target Duration
- 18 Months
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 24, 2024
First Posted
October 29, 2024
Study Start
December 27, 2025
Primary Completion (Estimated)
December 27, 2027
Study Completion (Estimated)
May 27, 2028
Last Updated
October 29, 2024
Record last verified: 2024-10