raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:156

Carnitine palmitoyl transferase 1A deficiency

Synonyms: CPT1A deficiency · Carnitine palmitoyl transferase IA deficiency · Hepatic carnitine palmitoyl transferase 1 deficiency · Hepatic carnitine palmitoyl transferase I deficiency · L-CPT1 deficiency · L-CPTI deficiency

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

Carnitine palmitoyltransferase 1A (CPT-1A) deficiency is an inborn error of metabolism that affects mitochondrial oxidation of long chain fatty acids (LCFA) in the liver and kidneys, and is characterized by recurrent attacks of fasting-induced hypoketotic hypoglycemia and risk of liver failure.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCarnitine palmitoyl transferase 1A deficiencyCPT1A deficiency · Carnitine palmitoyl transferase IA deficiency · Hepatic carnitine palmitoyl transferase 1 deficiency · Hepatic carnitine palmitoyl transferase I deficiency · L-CPT1 deficiency · L-CPTI deficiency
frDéficit en carnitine palmitoyltransférase 1ADéficit en CPT-1A · Déficit en L-CPT1 · Déficit en L-CPTI · Déficit en carnitine palmitoyltransférase 1 hépatique · Déficit en carnitine palmitoyltransférase I hépatique · Déficit en carnitine palmitoyltransférase IA
deCarnitin-Palmitoyl-Transferase IA-MangelCPT IA-Mangel · CPT-1A-Mangel · Carnitin-Palmitoyl-Transferase I-Mangel, hepatischer · L-CPT1-Mangel
esDeficiencia de carnitina palmitoiltransferasa 1ADeficiencia de CPT-1A · Deficiencia de L-CPT1 · Deficiencia de L-CPTI · Deficiencia de carnitina palmitoiltransferasa 1 hepática · Deficiencia de carnitina palmitoiltransferasa I hepática · Deficiencia de carnitina palmitoiltransferasa IA
itDeficit di carnitina-palmitoil transferasi 1ADeficit di CPT-1A · Deficit di L-CPT1 · Deficit di L-CPTI · Deficit di carnitina-palmitoil transferasi IA · Deficit epatico di carnitina-palmitoil transferasi 1 · Deficit epatico di carnitina-palmitoil transferasi I
nlCarnitinepalmitoyltransferase 1A-deficiëntieCPT1A-deficiëntie · Carnitinepalmitoyltransferase IA-deficiëntie · Hepatische carnitinepalmitoyltransferase 1-deficiëntie · Hepatische carnitinepalmitoyltransferase I-deficiëntie · L-CPT1-deficiëntie · L-CPTI-deficiëntie
ptDeficiência de carnitina palmitoiltransferase 1A
plNiedobór palmitylotransferazy 1A karnitynyNiedobór CPT1A · Niedobór L-CPT1 · Niedobór L-CPTI · Niedobór palmitylotransferazy 1 karnityny wątrobowej · Niedobór palmitylotransferazy I karnityny wątrobowej · Niedobór palmitylotransferazy IA karnityny
csDeficit karnitinpalmitoyltransferázy 1 ADeficit CPT1A · Deficit karnitinpalmitoyltransferázy I A · Deficit jaterní karnitinpalmitoyltransferázy 1 · Deficit jaterní karnitinpalmitoyltransferázy I · Deficit L-CPT1 · Deficit L-CPTI
ukДефіцит карнітин пальмітоїлтрансферази 1АДефіцит карнітинпальмітозилтрансферази IA · Дефіцит CPT1A · Дефіцит печінкової карнітинпальмітоілтрансферази 1 · Дефіцит печінкової карнітинпальмітоілтрансферази I · Дефіцит L-CPT1 · Дефіцит L-CPTI
zh肉毒碱棕榈酰转移酶IA缺乏症肝肉毒碱棕榈酰转移酶I缺乏
trKarnitin palmitoil transferaz 1A eksikliğiCPT1A eksikliği · L-CPT1 eksikliği · L-CPTI eksikliği · Karnitin palmitoil transferaz IA eksikliği · Hepatik karnitin palmitoil transferaz 1 eksikliği · Hepatik karnitin palmitoil transferaz I eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM255120Evalidated
ICD-10E71.3NTBTinclusionvalidated
ICD-115C52.00NTBTindexvalidated
MONDO0009705Evalidated
MeSHC535588Evalidated
UMLSC1829703Evalidated
GARD1120Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CPT1ADisease-causing germline mutation(s) (loss of function) inAssessedHGNC:2328ENSG0000011009060052811q13.3carnitine palmitoyltransferase 1A20301700[PMID]
5

Prevalence and incidence

4 records
TypeClassValueAreaQualificationValidationSource
Cases/families60 casesWorldwideCase(s)Validated20301700[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_20301700[PMID]
Prevalence at birth1-9 / 1 000 0000.3 / 100 000IsraelValue and classValidated33239050[PMID]
Prevalence at birth1-9 / 1 000 0000.5 / 100 000Specific populationValue and classValidated33239050[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

21 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001939Abnormality of metabolism/homeostasis
HP:0002167Abnormality of speech or vocalization
HP:0000708Atypical behavior
HP:0002910Elevated circulating hepatic transaminase concentration
HP:0012378Fatigue
HP:0001399Hepatic failure
HP:0001943Hypoglycemia
HP:0001252Hypotonia
HP:0001315Reduced tendon reflexes
HP:0001250Seizure
HP:0003202Skeletal muscle atrophy
Frequent (79-30%)
HP:0001259Coma
HP:0004374Hemiplegia/hemiparesis
HP:0002240Hepatomegaly
HP:0001254Lethargy
HP:0007185Loss of consciousness
HP:0008279Transient hyperlipidemia
Occasional (29-5%)
HP:0011675Arrhythmia
HP:0001639Hypertrophic cardiomyopathy
HP:0001947Renal tubular acidosis
HP:0001645Sudden cardiac death

Run the differential on the 11 obligate / very frequent terms

7

Sources for this card