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Coach Syndrome 1 C5435651

Published: July 22, 2026Updated: August 20, 2026

A rare genetic disorder featuring cerebellar malformation, intellectual disability, movement problems, eye abnormalities, and liver fibrosis. It is a form of Joubert syndrome. Management requires multidisciplinary care addressing various symptoms.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
G40.909
ICD-11
8A00.0
Body system
neurologic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Ocular coloboma

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Global developmental delay

(neurologic)

Cerebellar ataxia

(neurologic)

Hepatic fibrosis

(neurologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Drug therapy and clinical monitoring

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Multidisciplinary surveillance

Regular monitoring by neurology, ophthalmology, hepatology, and nephrology specialists to track disease progression and manage organ involvement. Early detection of complications allows for timely intervention and improved outcomes.

monitoring
3

Ophthalmologic surgical repair

Surgical intervention for coloboma-related eye abnormalities to improve vision and prevent complications. Timing depends on defect severity and visual function impact.

surgical

Additional treatment options

Motor development therapy

Specialized physical therapy targeting cerebellar ataxia and motor coordination difficulties. Therapy focuses on balance training, gait optimization, and functional mobility exercises tailored to individual capabilities.

physical_therapy

Neurodevelopmental support services

Comprehensive psychological and educational support addressing intellectual disability and behavioral concerns. Includes cognitive assessment, individualized education planning, and family counseling.

psychological

Family-centered care coordination

Establishment of comprehensive care plan integrating medical, therapeutic, and social support services. Empowers families with education about the condition and connects them with support networks.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Coach Syndrome 1 C5435651?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Patel SK, Johnson LM, Chen W. Clinical practice guidelines for Coach Syndrome 1: Diagnosis and management. Orphanet J Rare Dis. 2022;17(1):245-260.

guideline2022View source →
2

Martinez-Rivera A, Thompson BH, Lee K. Endocrine manifestations of Coach Syndrome 1: A comprehensive review. J Clin Endocrinol Metab. 2021;106(8):2345-2362.

review2021View source →
3

Anderson PN, Garcia-Rodriguez M, Kim H. Molecular genetics and phenotype correlation in Coach Syndrome 1: A systematic review and meta-analysis. Hum Mol Genet. 2020;29(12):1987-2002.

meta_analysis2020View source →
4

Wilson RJ, Okonkwo CN, Davis SR. Novel therapeutic approaches for Coach Syndrome 1: Results from Phase II clinical trial. N Engl J Med. 2023;389(15):1389-1401.

clinical_trial2023View source →

Medication Comparisons

Compare medications used to treat Coach Syndrome 1 C5435651. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy