Skip to content
knowrare
HealthSignal
Your condition community

Living with CCDC115-CDG

A rare metabolic condition that begins in infancy and affects the liver, muscle tone, and development.

Understanding CCDC115-CDG

CCDC115-CDG is a rare congenital disorder of glycosylation, a group of conditions in which the body has trouble attaching sugars to proteins.

It begins in infancy with an enlarged liver and spleen, liver problems that worsen over time, low muscle tone, and delayed development. Mild facial differences and seizures have also been reported.

Signs & symptoms

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

  • Enlarged liver and spleen
  • Liver failure
  • Low muscle tone (hypotonia)
  • Delayed development overall

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 genetic specialists and hormone specialists.

  3. Consider genetic testing

    Changes in VMA22 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    CDG CARE may keep lists of experts for this condition.

Care & treatment

Care team
Genetic specialists (geneticists); Hormone specialists (endocrinologists)
Expert care
Expert lists: CDG CARE
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 CDG CARE
  • 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 VMA22 genetic testing confirm the diagnosis?
How should the liver be monitored?
What therapies can help with development?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive
GenesVMA22

Changes in the VMA22 gene cause this condition. It is inherited in an autosomal recessive way, so a child inherits a changed copy of the gene from each parent.

GeneticEndocrineInherited Metabolic

Also known as: carbohydrate deficient glycoprotein syndrome type iio; ccdc115 congenital disorder of glycosylation; ccdc115-cdg - coiled-coil domain containing 115 congenital disorder of glycosylation; cdg iio; cdg syndrome type iio; cdg-iio

Patient organizations

Source: NIH GARD · CCDC115-CDGGARD ID 17845 · 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 CCDC115-CDG.

Explore the CCDC115-CDG blog

Explore research for CCDC115-CDG

Explore actively recruiting CCDC115-CDG studies with HealthSpark.

HealthSpark

Find actively recruiting studies for CCDC115-CDG with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

Powered by HealthSpark, our AI chat helper

I can help you find recruiting CCDC115-CDG studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

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

Get Signals for CCDC115-CDG

Stay in the loop with community stories and updates from medical researchers.

HealthStoryfor CCDC115-CDG

Create a living journal that talks back

HealthStory evolves private journaling with a living AI journal that talks back and asks thoughtful questions, helping you capture your CCDC115-CDG experiences more deeply and prepare for better conversations with your doctors and care team.

Start your CCDC115-CDG journal

Your journal is private. Sharing your story publicly is a separate choice, made with Share your story above.