Overview
N syndrome is an extremely rare genetic condition that was first described in the medical literature and is characterized by a combination of intellectual disability, unusual facial features, and other physical differences. The name 'N syndrome' comes from the initial of the family in which it was originally reported. People with this condition may have hearing loss (deafness), distinctive facial features, and differences in growth and development. Some individuals also show skin changes and eye abnormalities. Because N syndrome is so rare, with only a handful of cases ever reported in the medical literature, our understanding of the full range of symptoms and the best approaches to care remains limited. There is no specific cure for N syndrome. Treatment focuses on managing individual symptoms, such as hearing aids or cochlear implants for hearing loss, special education support for intellectual disability, and regular monitoring by a team of specialists. Early intervention services for developmental delays can help children reach their full potential. Genetic counseling is recommended for affected families to understand the chances of the condition occurring again in future pregnancies.
Key symptoms:
Intellectual disabilityHearing loss or deafnessUnusual facial featuresShort statureSkin abnormalitiesEye problemsDelayed developmentSpeech and language delaysBehavioral differences
Clinical phenotype terms (11)— hover any for plain English
X-linked recessive
Carried on the X chromosome; typically affects males more than females
Neonatal
Begins at or shortly after birth (first 4 weeks)
FDA & Trial Timeline
10 eventsTheis S. Itenov — PHASE4
Peking Union Medical College Hospital — PHASE4
Laboratoires Thea — PHASE4
Tianjin University of Sport — NA
Cairo University — PHASE3
Assiut University
Médecins du Monde
Centro di Riferimento Oncologico - Aviano — NA
NYU Langone Health — NA
Cryotherapeutics SA — NA
Data sourced from FDA regulatory filings and ClinicalTrials.gov. Updated periodically.
Treatments
No FDA-approved treatments are currently listed for N syndrome.
View clinical trials →Clinical Trials
View all trials with filters →No actively recruiting trials found for N syndrome at this time.
New trials open frequently. Follow this disease to get notified.
Rare Disease Specialist
Treatment Centers
8 centersBaylor College of Medicine Rare Disease Center ↗
Baylor College of Medicine
📍 Houston, TX
🏥 NORDStanford Medicine Rare Disease Center ↗
Stanford Medicine
📍 Stanford, CA
🔬 UDNNIH Clinical Center Undiagnosed Diseases Program ↗
National Institutes of Health
📍 Bethesda, MD
🔬 UDNUCLA UDN Clinical Site ↗
UCLA Health
📍 Los Angeles, CA
🔬 UDNBaylor College of Medicine UDN Clinical Site ↗
Baylor College of Medicine
📍 Houston, TX
🔬 UDNHarvard/MGH UDN Clinical Site ↗
Massachusetts General Hospital
📍 Boston, MA
🏥 NORDMayo Clinic Center for Individualized Medicine ↗
Mayo Clinic
📍 Rochester, MN
👤 Mayo Clinic Center for Individualized Medicine
🏥 NORDUCLA Rare Disease Day Program ↗
UCLA Health
📍 Los Angeles, CA
Travel Grants
No travel grants are currently matched to N syndrome.
Community
No community posts yet. Be the first to share your experience with N syndrome.
Start the conversation →Latest news about N syndrome
Disease timeline:
New recruiting trial: Association of Plasma N-terminal Pro-Brain Natriuretic Peptide Levels With the Burden of Coronary Artery Disease
A new clinical trial is recruiting patients for N syndrome
New recruiting trial: The ACTS Trial: N-acetylcysteine (NAC) and Night-splinting as a Non-operative Treatment for Carpal Tunnel Syndrome
A new clinical trial is recruiting patients for N syndrome
New recruiting trial: Assessment of N-Acetylcysteine as Therapy for Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
A new clinical trial is recruiting patients for N syndrome
New recruiting trial: Effectiveness of an N-acetylcysteine and Urea-based Cream in Prevention of Capecitabine-induced HAND-foot Syndrome in Breast Cancer Patients
A new clinical trial is recruiting patients for N syndrome
New recruiting trial: The Combined Effect of N-Acetyl Cysteine and Metformin in Polycystic Ovary Syndrome Patients
A new clinical trial is recruiting patients for N syndrome
New recruiting trial: Low Dead-space Injecting Equipment Distribution Program for People Who Inject Drugs in Low- and Middle-income Countries
A new clinical trial is recruiting patients for N syndrome
New recruiting trial: New Preservative-free Combination of Trehalose, Sodium Hyaluronate and N-acetyl-aspartyl-glutamate (NAAGA) in Dry Eye
A new clinical trial is recruiting patients for N syndrome
Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
Rare disease caregiving can be isolating. Connect with counseling and peer support.
Family & Caregiver Grants
Financial assistance programs specifically for caregivers of rare disease patients.
Social Security Disability
Learn how rare disease patients may qualify for SSDI/SSI benefits.
Questions for your doctor
Bring these to your next appointment
- Q1.What specific symptoms should we watch for as my child grows?,How often should hearing and vision be tested?,What early intervention services would benefit my child the most?,Is genetic testing available to confirm the diagnosis or identify the specific gene involved?,What is the chance of this condition occurring again in future pregnancies?,Are there any clinical trials or research studies we could participate in?,What support services are available for our family?
Common questions about N syndrome
What is N syndrome?
N syndrome is an extremely rare genetic condition that was first described in the medical literature and is characterized by a combination of intellectual disability, unusual facial features, and other physical differences. The name 'N syndrome' comes from the initial of the family in which it was originally reported. People with this condition may have hearing loss (deafness), distinctive facial features, and differences in growth and development. Some individuals also show skin changes and eye abnormalities. Because N syndrome is so rare, with only a handful of cases ever reported in the me
How is N syndrome inherited?
N syndrome follows a x-linked recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does N syndrome typically begin?
Typical onset of N syndrome is neonatal. Age of onset can vary across affected individuals.
Which specialists treat N syndrome?
23 specialists and care centers treating N syndrome are listed on UniteRare, sourced from ClinicalTrials.gov principal investigators, published research, and the NPPES NPI registry.