Cognitive and Brain Development in Adolescents With Gilles de la Tourette Syndrome (CADETS)

Institut National de la Santé Et de la Recherche Médicale, France

Status: Unknown

Conditions: Tourette Syndrome in Adolescence

Treatments: Other: brain MRI; Other: TMS; Behavioral: Behavioral testing on cognitive computerized tasks

Study type: Interventional

Funder types: Other

Identifiers

NCT04179435

C19-11

2019-A00992-55 (Registry Identifier)

Details and patient eligibility

About

In children with neurodevelopmental disorders, adolescence is usually associated with a reshaping of the clinical picture and symptomatology. Tourette syndrome (TS) is a paradigmal neurodevelopmental syndrome characterised by involuntary paroxysmal movements (motor tics) and vocalisation (vocal tics) often associated with various psychiatric disorders. The neuronal and cognitive mechanisms associated with TS symptoms improvement during adolescence, or the persistence in adulthood remains unknown, and this is what we aim to address in this study.

Full description

Thus, the aims of the present project is threefold:

Aim 1: To evaluate the maturation of cognitive functions in adolescents with TS compared to typically developing adolescents.

To achieve this aim, three distinct cognitive dimensions will be assessed in all subjects (patients and controls): (i) reward sensitivity and habit formation; (ii) cognitive impulsivity and action control and (iii) self-agency.

Aim 2: To identify neuronal correlates of cognitive function and brain development in health and disease. To achieve this aim, we will use a combined behavioural (as described in Aim 1), (i) neuroimaging and (ii) TMS approaches.

Aim 3: To predict clinical outcome . In this part of the project we aim to identify behavioural, imaging or neurophysiological markers of clinical outcome in patients with TS.

Enrollment: 132 estimated patients

Sex: All

Ages: 13 to 18 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Tourette syndrome
• Ages 13 - 18
• Acceptance to perform the Brain MRI
• Acceptance to perform the cognitive testing
• Acceptance to perform the TMS measures

Exclusion criteria

• Learning disability
• Incompatibility with MRI procedure (metal body implants, pregnancy)

Trial design

Primary purpose: Basic Science

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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132 participants in 2 patient groups

Tourette syndrome

Other group

Description:

Patients with Tourette syndrome aged 13 - 18 y.o. Interventions : Brain scans, cognitive testing, TMS measures

Treatment:

Other: TMS

Other: brain MRI

Behavioral: Behavioral testing on cognitive computerized tasks

Controls

Other group

Description:

Controls matched to Tourette syndrome group nterventions : Brain scans, cognitive testing, TMS measures

Treatment:

Other: TMS

Other: brain MRI

Behavioral: Behavioral testing on cognitive computerized tasks