Pterin-4 alpha-carbinolamine dehydratase 1 deficiency
MONDO:0009908Pterin-4 alpha-carbinolamine dehydratase 1 (PCBD1) deficiency is considered a transient and benign form of hyperphenylalaninemia due to tetrahydrobiopterin deficiency, characterized by muscular hypotonia, irritability (detected by EEG), slow acquisition of psychomotor skills, age-dependent movement disorders, including dystonia and an accompanying excretion of 7-substituted pterins. Neurological development is normal with dietary control of blood phenyalanine. PCBD1 is inherited in an autosomal recessive manner.
Also known as: CADH deficiency, PCBD deficiency, PCBD1 deficiency, PCD deficiency, dehydratase deficiency, hyperphenylalaninemia due to dehydratase deficiency, hyperphenylalaninemia due to pterin-4-alpha-carbinolamine dehydratase deficiency, hyperphenylalaninemia with primapterinuria
24 clinical trials for this condition and its sub-types.
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New hope for kids: drug may prevent transplant complications
Disease control Not yet recruitingThis study tests whether adding the drug vorinostat to standard care can prevent graft-versus-host disease (GVHD) in children and young adults (ages 1-26) with non-cancerous blood disorders who are getting a bone marrow transplant. GVHD is a serious complication where donor cells…
Phase: PHASE2 • Sponsor: Sung Won Choi • Aim: Disease control
Last updated Jul 02, 2026 00:00 UTC
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AI could help spot rare metabolic diseases in newborns
Diagnosis Not yet recruitingThis trial will test an artificial intelligence system designed to interpret routine newborn screening tests for inherited metabolic disorders. Researchers will compare the AI's accuracy to standard manual review by trained staff. The study plans to include 200,000 newborns in Ch…
Phase: NA • Sponsor: The Children's Hospital of Zhejiang University School of Medicine • Aim: Diagnosis
Last updated Jun 27, 2026 09:00 UTC
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Massive diabetes registry aims to unlock secrets of metabolic disease
Knowledge-focused Not yet recruitingThis 10-year observational study will follow 10,000 adults with diabetes, metabolic disorders, and related conditions like high blood pressure and fatty liver disease. Researchers will collect routine medical data to identify markers of disease severity and activity. The goal is …
Sponsor: IRCCS San Raffaele • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:53 UTC