top of page

MYT1L Syndrome Care

There is currently no specific treatment for this syndrome.

 

Multidisciplinary support AND COORDINATION should be put in place as early as possible.

 

⚠ Point of vigilance

Several impacts described on this page may lead to the prescription of medication (behavioral disorders, anxiety, epilepsy, sleep, ADHD…). In individuals with MYT1L syndrome, these treatments may cause unusual, atypical, or even paradoxical reactions.

An essential insight for both families and healthcare professionals.

(👉 Read the full point of vigilance— click on the underlined text for direct access)

A stance of reasoned optimism

The PNDS issued in January 2026 highlights an essential message for all concerned persons and their caregivers:

"It is essential to adopt an open and non-restrictive clinical stance: the capacities and learning potential of these patients should not be assumed to be limited a priori. A professional attitude grounded in reasoned optimism and the exploration of ambitious intervention paths fosters sometimes unexpected acquisitions and supports long-term development."

— PNDS MYT1L Syndrome — Synthesis for the general practitioner, HAS, January 2026

No specific curative treatment

To date, there is no specific curative treatment for MYT1L syndrome. Care is based on targeted medical and paramedical interventions addressing symptoms. It is chronic, individualized, and must be regularly adapted to the needs of the person throughout their life.

​

Multidisciplinary coordination

Follow-up relies on close cooperation between several professionals.

Coordinating physicians

  • General practitioner / family doctor

  • Pediatrician / Pediatric neurologist

  • Geneticist

  • Psychiatrist

Organ or function specialists

  • Ophthalmologist, orthoptist

  • Endocrinologist

  • Nutritionist, obesity specialist

  • Orthopedist

  • ENT specialist

  • Sleep medicine specialist

  • Neurologist (in case of epilepsy)

Rehabilitation and support professionals

  • Speech and language therapist

  • Psychomotor therapist

  • Occupational therapist

  • Neuropsychologist

  • Psychologist

  • Specialized educator

  • Physiotherapist

The pediatrician or general practitioner provides regular follow-up in coordination with a Reference or Competence Center for Developmental Anomalies (CLAD) belonging to the AnDDI-Rares and/or DéfiScience rare-disease healthcare networks.

 

Recommended follow-up program

Depending on age and needs, follow-up includes:

  • Screening and early rehabilitation of language and communication disorders

  • Screening and early rehabilitation of oro-myo-functional and feeding-related disorders

  • Screening and early rehabilitation of motor disorders and axial hypotonia

  • Screening and management of learning disorders, intellectual disability, and neuro-visual disorders

  • Screening and management of autism spectrum disorder

  • Screening and management of ADHD

  • Screening and management of sensory disorders

  • Screening and management of behavioral disorders (impulsivity, anxiety, disinhibition, aggressiveness)

  • Regular monitoring of growth and pubertal development (BMI tracking using IOTF reference curves, screening for overweight and obesity)

  • Screening and management of eating behavior disorders

  • Screening for associated complications: ophthalmologic, epileptic, sleep, metabolic, orthopedic, etc.

  • Personal and family psychological support

  • Therapeutic patient education

  • Support with professional projects and autonomy building

  • Administrative and social support (disability application, long-term illness status, etc.)

 

Care continues into adulthood

The PNDS emphasizes the continuity of care into adulthood, with a coordinated transition between pediatric and adult teams.

 

Care settings

Care can take place:

  • In private practice

  • In CAMSP (Early Medical and Social Care Centers, ages 0-6)

  • In CMP / CMPP (Medico-Psychological / Educational Centers)

  • In day hospitals, Autism Resource Centers (CRA), neurodevelopmental disorder centers

  • Through a SESSAD (Special Education and Home Care Service) — interventions at school or at home

  • In IME, IMP, IMPro, EEAP for specialized educational settings

 

Financial support

Several types of care are not reimbursed by French national health insurance (neuropsychologist, psychomotor therapist, occupational therapist, psychologist, specialized educator, private nutritionist, osteopath, etc.). The MDPH (Departmental House for Persons with Disabilities) may grant financial aid for these expenses.

VIGILANCE POINT — TREATMENTS Interactive — click to select language

MYT1L Support

There is NO SPECIFIC TREATMENT for this syndrome today.

 

However

  • Treatment may be initiated based on the clinical assessment made by the physician in relation to certain repercussions of the syndrome.

  • Strict frameworks may be imposed regarding diet, the practice of adapted, sustained and regular sporting activity.

 

 !! MULTIDISCIPLINARY SUPPORT must be put in place AS SOON AS POSSIBLE.

RESOURCES

ORPHA CODE
647799

  • Orphanet code to be filled in or consulted if you are a physician, health care or social welfare professional...

  • Orphanet code to be indicated if you are a caregiver or patient

​

SUMMARY AND DESCRIPTION AVAILABLE IN ENGLISH AND FRENCH

© 2021 by Les Extra-Vaillants - MyT1L. Created with Wix.com

bottom of page