NCT02165410

Brief Summary

The purpose of this study is reproduce the individual detection results by PET with Arterial Spin Labeling (ASL) MRI, to establish a biomarker useful in autism diagnosis.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
115

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Nov 2013

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

November 13, 2013

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

January 20, 2014

Completed
5 months until next milestone

First Posted

Study publicly available on registry

June 17, 2014

Completed
9.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 13, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 13, 2023

Completed
Last Updated

March 23, 2026

Status Verified

March 1, 2026

Enrollment Period

9.8 years

First QC Date

January 20, 2014

Last Update Submit

March 19, 2026

Conditions

Keywords

Autism, mental retardation, Magnetic Resonance Imaging

Outcome Measures

Primary Outcomes (1)

  • CBF

    ASL is an MRI technique to measure CBF at rest by labeling arterial intravascular water and use as an endogenous tracer. This sequence is performed without injection of contrast or injection of radioactivity

    at day 0

Secondary Outcomes (2)

  • anatomical connectivity

    at Day 0

  • eye-tracking method

    at day 0

Study Arms (1)

Eye tracking and RMI

EXPERIMENTAL
Procedure: ASL-MRIProcedure: Diffusion tensor imaging (diffusion MRI)Procedure: Resting state MRIProcedure: Eye-trackingProcedure: Cognitive profile

Interventions

ASL-MRIPROCEDURE

ASL MRI is a non-invasive technique without injection to measure rCBF at rest marking the intravascular water molecules and use it as an endogenous tracer. Premedication, if required, will concern autistic and mentally retarded subjects only.

Eye tracking and RMI

Diffusion MRI enables the mapping of the diffusion process of water molecules, which allows visualizing anatomical connections between different parts of the brain, noninvasively and on an individual basis. The sequence is acquired following clinical MRI sequences, while the child is still inside the MRI machine, with no further intervention applied.

Eye tracking and RMI

This sequence is based on the synchronization of fluctuations in the blood-oxygen level dependent (BOLD) signal of different brain regions that work as a network. Therefore this sequence allows for the establishing of maps of funcitonal connectivity.

Eye tracking and RMI
Eye-trackingPROCEDURE

Eye tracking is a non-invasive method that allows objectifying gaze parameters during presentation of stimuli on a computer screen. Children will be presented with a series of social and no social stimuli and are required to watch it, with no further intervention applied.

Eye tracking and RMI

Children will be asked to perform certain tasks, adapted for their age.

Eye tracking and RMI

Eligibility Criteria

Age18 Months - 18 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Patient diagnosed autist or suspected autist : males and females with the diagnosis of autism based on the following criteria:
  • years ≤ age \< 18 years,
  • demand for MRI in the etiologic assessment (suspected autism) or MRI control in the treatment (diagnosed with autism)
  • obtaining written consent from parents or legal guardians of patients.
  • Patients diagnosed with mental retardation or suspected with mental retardation : males and females with the diagnosis of mental retardation using the following criteria:
  • years ≤ age \< 18 years,
  • demand for MRI in the etiologic assessment (suspected mental retardation) or MRI control in the treatment (diagnosed with mental retardation)
  • obtaining written consent from parents or legal guardians of patients.
  • Healthy control subjects: males and females:
  • years ≤ age \< 18 years
  • no known neurological or psychiatric disorder obtaining written consent with parents or legal guardians of volunteers.
  • Very young patients suspected of autism: male and female with suspected autism
  • months ≤ age \<5 years
  • demand of MRI in the etiologic assessment
  • obtaining written consent from parents or legal guardians.
  • +5 more criteria

You may not qualify if:

  • For all subjects:
  • Indication against performing MRI (pacemaker, an implanted metal foreign body, claustrophobia),
  • Inability of healthy volunteers to remain still during the MRI examination.
  • Healthy control subjects: males and females:
  • aged between 5 years and 18 years
  • no known neurological or psychiatric disorder
  • obtaining written consent with parents or legal guardians of volunteers.
  • All subjects must be registered with the social security.
  • For all subjects:
  • Indication against performing MRI (pacemaker, an implanted metal foreign body, claustrophobia),
  • Inability of healthy volunteers to remain still during the MRI examination.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hôpital Necker-Enfants Malades Service de Radiologie Pédiatrique

Paris, 75743, France

Location

MeSH Terms

Conditions

Autistic DisorderIntellectual Disability

Interventions

Diffusion Tensor Imaging

Condition Hierarchy (Ancestors)

Autism Spectrum DisorderChild Development Disorders, PervasiveNeurodevelopmental DisordersMental DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

NeuroimagingDiagnostic ImagingDiagnostic Techniques and ProceduresDiagnosisDiffusion Magnetic Resonance ImagingMagnetic Resonance ImagingTomographyDiagnostic Techniques, NeurologicalInvestigative Techniques

Study Officials

  • Nathalie BODDAERT, MD, PhD

    Assistance Publique Hopitaux de Paris

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 20, 2014

First Posted

June 17, 2014

Study Start

November 13, 2013

Primary Completion

September 13, 2023

Study Completion

September 13, 2023

Last Updated

March 23, 2026

Record last verified: 2026-03

Locations