Glutaminergic Transmission in Autism : Molecular Imaging Exploration
France27 participantsStarted 2016-04
Plain-language summary
Glutamatergic transmission exploration using PET (Positron Emission Tomography) imaging in autism compared to Fragile-X Syndrome ( FXS) and Healthy Volunteers
Who can participate
Age range
18 Years – 45 Years
Sex
MALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Male
* Between 18 years-old and 45 years-old
* Informed, written consent obtained from patient or his representant
* Subject with an affiliation to French social security
* For autistic patient : patient with diagnosis of ASD (Autistic Spectrum Disorders) following DSM-IV or DSM-5 criteria with recommended tools (ADI-R and/or ADOS)
* For FXS patient : diagnosis of FXS and confirmation of total mutation of FMR1
Exclusion Criteria:
* Contraindications to MRI
* Excessive use of alcohol or drug, or addiction to alcohol or drug during last 6 months
* Any unstable or uncontrolled disease, clinically significant
* Participation to an other experimental protocol with drug or irradiant exam
* Person under exclusion period because of previous participation to an other experimental protocol
* Person under temporary guardianship
* Forbidden treatments : any psychotropic treatment for 4 last weeks before PET exam and changing durably glutaminergic transmission directly or undirectly
* For healthy subjects : adult under guardianship, medical history of central nervous system disease, medical history of attention deficit hyperactivity disorder, past or present psychiatric or neurologic disorder (MINI DSM-IV)
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
cerebral glutaminergic activity assessed by binding potential of [18F]FPEB