Skip to content
knowrare
HealthSignal
Your condition community

Living with Transient neonatal multiple acyl-CoA dehydrogenase deficiency

A very rare condition in newborns caused by low riboflavin (vitamin B2) in the mother, which clears with riboflavin treatment.

Understanding Transient neonatal multiple acyl-CoA dehydrogenase deficiency

Transient neonatal multiple acyl-CoA dehydrogenase deficiency is a very rare newborn condition that looks like multiple acyl-CoA dehydrogenase (MAD) deficiency but is caused by low riboflavin in the mother.

Babies can have a poor suck, a build-up of acid in the blood (metabolic acidosis), and low blood sugar. GARD says it resolves completely with riboflavin taken by mouth. In the one case described, the mother had a change in one copy of the riboflavin transporter gene (hRFT1).

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet, but the summary describes these features:

  • Poor suck
  • Too much acid in the blood (metabolic acidosis)
  • Low blood sugar (hypoglycemia)

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.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Genetic specialists (geneticists)
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 rare disease patient organizations for support
  • 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
How is riboflavin given, and for how long?
Should the mother be tested for the hRFT1 gene change?
Which specialists should follow my baby's metabolism?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Dominant

GARD says it is caused by low riboflavin in the mother. In the one case described, the mother had a change in one copy of the hRFT1 gene (haploinsufficiency).

GeneticInherited Metabolic

Also known as: transient neonatal glutaric acidemia type 2; transient neonatal glutaric aciduria type 2; transient neonatal mad (multiple acyl-coenzyme a dehydrogenase) deficiency; transient neonatal mad deficiency; transient neonatal madd; transient neonatal multiple acyl-coenzyme a dehydrogenase deficiency

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Transient neonatal multiple acyl-CoA dehydrogenase deficiencyGARD ID 21498 · 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 Transient neonatal multiple acyl-CoA dehydrogenase deficiency.

Explore the Transient neonatal multiple acyl-CoA dehydrogenase deficiency blog

Explore research for Transient neonatal multiple acyl-CoA dehydrogenase deficiency

Explore actively recruiting Transient neonatal multiple acyl-CoA dehydrogenase deficiency studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Transient neonatal multiple acyl-CoA dehydrogenase deficiency 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 Transient neonatal multiple acyl-CoA dehydrogenase deficiency 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 Transient neonatal multiple acyl-CoA dehydrogenase deficiency

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

HealthStoryfor Transient neonatal multiple acyl-CoA dehydrogenase deficiency

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 Transient neonatal multiple acyl-CoA dehydrogenase deficiency experiences more deeply and prepare for better conversations with your doctors and care team.

Start your journal

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