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Living with Coffin-Lowry syndrome

An X-linked condition affecting many parts of the body, usually more severely in males, with learning disability and distinct facial features.

Understanding Coffin-Lowry syndrome

Coffin-Lowry syndrome is a condition that affects many parts of the body and is usually more severe in males.

Males typically have severe to profound intellectual disability and delayed development. Females may have normal thinking or intellectual disability from mild to profound. Some people have brief episodes of collapse when excited or startled by a loud noise (SIDEs). Most males have distinct facial features, and soft hands with short, tapered fingers are common. GARD lists onset from birth to childhood.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Intellectual disability
  • Delayed development
  • Small head size (microcephaly)
  • Coarse facial features
  • Walking difficulty
  • Broad fingers and spine bone differences

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists, genetic specialists and hormone specialists.

  3. Consider genetic testing

    Changes in RPS6KA3 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists); Hormone specialists (endocrinologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Children's Craniofacial Association and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Can RPS6KA3 genetic testing confirm the diagnosis?
How can we manage and prepare for sudden collapse episodes?
Should female relatives be tested as carriers?

Quick facts

Symptoms usually startfrom Birth to Childhood
InheritanceX-Linked
GenesRPS6KA3

GARD says changes in the RPS6KA3 gene cause this condition. It is X-linked, which means the gene is on the X chromosome.

GeneticNeurologicalEndocrine

Also known as: cls; cls - coffin-lowry syndrome; coffin lowry syndrome; coffin-lowry syndrome, mild; coffin-lowry syndrome, x-linked dominant

Patient organizations

Source: NIH GARD · Coffin-Lowry syndromeGARD ID 6123 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Coffin-Lowry syndrome.

Explore the Coffin-Lowry syndrome blog

Explore research for Coffin-Lowry syndrome

Explore actively recruiting Coffin-Lowry syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Coffin-Lowry syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
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  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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