Inborn disorder of amino acid metabolism
MONDO:0004736An inherited disorder that affects the metabolism of the amino acids. Representative examples include alkaptonuria, homocystinuria, tyrosinemia, and phenylketonuria.
Also known as: inborn cellular amino acid metabolic process disorder, inborn error of amino acid metabolism, inborn error of cellular amino acid metabolic process, inherited amino acid metabolic disorder, rare inborn error of cellular amino acid metabolic process, amino acid metabolic disorder, amino acid metabolism, inborn errors, inborn amino acid metabolism disorder
159 clinical trials for this condition and its sub-types, 6 tagged with Inborn disorder of amino acid metabolism itself.
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Sub-types of Inborn disorder of amino acid metabolism
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Inborn disorder of phenylalanine and tyrosine metabolism 0 trials · 65 incl. sub-types
2 sub-types
- Disorder of phenylalanine metabolism 0 trials · 60 incl. sub-types Sub-types →
- Disorder of tyrosine metabolism 0 trials · 8 incl. sub-types Sub-types →
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Urea cycle disorder 14 trials · 30 incl. sub-types
3 sub-types
- Urea cycle disorder or inherited hyperammonemia 0 trials · 24 incl. sub-types Sub-types →
- Citrullinemia 2 trials · 6 incl. sub-types Sub-types →
- 3-methylcrotonyl-CoA carboxylase 1 deficiency 1 trial
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Inborn organic aciduria 5 trials · 29 incl. sub-types
7 sub-types
- Classic organic aciduria 0 trials · 20 incl. sub-types Sub-types →
- Methylmalonic acidemia 7 trials · 8 incl. sub-types Sub-types →
- Glutaryl-CoA dehydrogenase deficiency 4 trials
- Maple syrup urine disease 2 trials · 4 incl. sub-types Sub-types →
- Glutaric acidemia type 3 0 trials
- Malonic aciduria 0 trials
- Methylmalonate semialdehyde dehydrogenase deficiency 0 trials
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Inborn disorder of amino acid transport 1 trial · 16 incl. sub-types
19 sub-types
- Cystinuria 7 trials Sub-types →
- Undetermined early-onset epileptic encephalopathy 1 trial · 6 incl. sub-types Sub-types →
- Oculocerebrorenal syndrome 3 trials
- Hartnup disease 0 trials
- Autosomal recessive cerebellar ataxia - pyramidal signs - nystagmus - oculomotor apraxia syndrome 0 trials Sub-types →
- Blue diaper syndrome 0 trials
- Dicarboxylic aminoaciduria 0 trials
- Disorder of neutral amino acid transport 0 trials
- Episodic ataxia type 6 0 trials
- Foveal hypoplasia - optic nerve decussation defect - anterior segment dysgenesis syndrome 0 trials
- Histidinuria due to a renal tubular defect 0 trials
- Hyperdibasic aminoaciduria type 1 0 trials
- Hypotonia-cystinuria syndrome 0 trials Sub-types →
- Iminoglycinuria 0 trials
- Juvenile nephropathic cystinosis 0 trials
- Lysinuric protein intolerance 0 trials
- Nephropathic infantile cystinosis 0 trials
- Ocular cystinosis 0 trials
- Progressive essential tremor-speech impairment-facial dysmorphism-intellectual disability-abnormal behavior syndrome 0 trials
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Homocystinuria 7 trials · 11 incl. sub-types
5 sub-types
- Classic homocystinuria 4 trials
- Hyperhomocysteinemia 3 trials
- Methylmalonic aciduria and homocystinuria 1 trial · 3 incl. sub-types Sub-types →
- Homocystinuria without methylmalonic aciduria 0 trials · 2 incl. sub-types Sub-types →
- Homocystinuria due to methylene tetrahydrofolate reductase deficiency 1 trial
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Hyperphenylalaninemia due to tetrahydrobiopterin deficiency 6 trials · 7 incl. sub-types
4 sub-types
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Albinism 6 trials
2 sub-types
- X-linked recessive ocular albinism 0 trials
- Albinism-hearing loss syndrome 0 trials
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Cerebral creatine deficiency syndrome 0 trials · 6 incl. sub-types
3 sub-types
- Creatine transporter deficiency 6 trials
- AGAT deficiency 1 trial
- Guanidinoacetate methyltransferase deficiency 1 trial
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Inborn disorder of branched-chain amino acid metabolism 0 trials · 4 incl. sub-types
7 sub-types
- Maple syrup urine disease 2 trials · 4 incl. sub-types Sub-types →
- Holocarboxylase synthetase deficiency 1 trial
- 3-hydroxyisobutyric aciduria 0 trials
- 3-hydroxyisobutyryl-CoA hydrolase deficiency 0 trials
- Branched-chain keto acid dehydrogenase kinase deficiency 0 trials
- Hypervalinemia and hyperleucine-isoleucinemia 0 trials
- Methylmalonate semialdehyde dehydrogenase deficiency 0 trials
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Inborn disorder of ornithine metabolism 0 trials · 4 incl. sub-types
2 sub-types
- Ornithine aminotransferase deficiency 4 trials
- P5CS deficiency 0 trials Sub-types →
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Adenylosuccinate lyase deficiency 2 trials
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Gamma-amino butyric acid metabolism disorder 0 trials · 1 incl. sub-types
3 sub-types
- Succinic semialdehyde dehydrogenase deficiency 1 trial
- GABA aminotransaminase deficiency 0 trials
- Homocarnosinosis 0 trials Sub-types →
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Inborn serine deficiency 0 trials · 1 incl. sub-types
1 sub-type
- Neurometabolic disorder due to serine deficiency 0 trials · 1 incl. sub-types Sub-types →
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Brunner syndrome 0 trials
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Aminoacylase 1 deficiency 0 trials
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Arakawa syndrome 2 0 trials
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Cystathioninuria 0 trials
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Disorder of methionine catabolism 0 trials
3 sub-types
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Glycine encephalopathy 0 trials
5 sub-types
- Atypical glycine encephalopathy 0 trials
- Glycine encephalopathy 1 0 trials
- Glycine encephalopathy 2 0 trials
- Infantile glycine encephalopathy 0 trials
- Neonatal glycine encephalopathy 0 trials
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Hyperglycinemia, transient neonatal 0 trials
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Hyperlysinemia 0 trials
1 sub-type
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2 sub-types
- Histidinemia 0 trials Sub-types →
- Urocanic aciduria 0 trials
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3 sub-types
- P5CS deficiency 0 trials Sub-types →
- Autosomal recessive cutis laxa type 2 0 trials Sub-types →
- Hyperprolinemia 0 trials Sub-types →
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3 sub-types
Most studied deeper sub-types
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Promising seizure drug study halted early
Disease control Stopped earlyThis study looked at the long-term safety of the drug NBI-921352 for people with a rare genetic seizure disorder called SCN8A-DEE. It was an extension of an earlier study, and participants took the drug alongside their usual seizure medications. The study was stopped early and on…
Phase 2 • Sponsor: Neurocrine Biosciences • Aim: Disease control
Last updated Jun 27, 2026 12:37 UTC
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MRNA therapy trial for rare acidemia halted early
Disease control Stopped earlyThis study tested an mRNA therapy called mRNA-3705 in 18 people with a rare genetic condition called methylmalonic acidemia, which causes harmful acid buildup. The therapy aimed to help the body produce a missing enzyme to lower acid levels. The trial was terminated early, so fin…
Phase 1/2 • Sponsor: ModernaTX, Inc. • Aim: Disease control
Last updated Jun 27, 2026 12:28 UTC
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New PKU formula shows promise in managing blood levels
Disease control Stopped earlyThis study tested a new amino acid formula called PKU GOLIKE in people aged 16 and older with phenylketonuria (PKU). The goal was to see if it could better control daily swings in blood phenylalanine levels compared to standard treatment. The study was stopped early, so results a…
Sponsor: APR Applied Pharma Research s.a. • Aim: Disease control
Last updated Jun 27, 2026 11:00 UTC
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Promising epilepsy drug trial halted early – what we know
Disease control Stopped earlyThis study tested an experimental drug called NBI-921352 in people aged 2 to 21 with a rare, severe form of epilepsy caused by a change in the SCN8A gene. The goal was to see if adding this drug to their current seizure medicines could reduce how often they had seizures. The tria…
Phase 2 • Sponsor: Neurocrine Biosciences • Aim: Disease control
Last updated Jun 27, 2026 07:54 UTC
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Experimental therapy for rare metabolic disease shows early promise
Disease control Stopped earlyThis study tested a new medicine called ARCT-810 in 8 people aged 12 to 65 with ornithine transcarbamylase (OTC) deficiency, a rare genetic disorder that causes dangerous ammonia buildup. The main goal was to check the drug's safety and how the body processes it. The trial was st…
Phase 2 • Sponsor: Arcturus Therapeutics, Inc. • Aim: Disease control
Last updated Jun 27, 2026 07:51 UTC
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PKU diet in childhood may shape adult IQ, study finds
Knowledge-focused Stopped earlyThis study looks at adults with phenylketonuria (PKU) who were diagnosed as newborns and treated with a special diet. Researchers want to see if how long and how strictly they followed the diet as children affects their intelligence (IQ) as adults. The goal is to use this informa…
Sponsor: University Hospital, Lille • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:37 UTC