Ornithine translocase deficiency
MONDO:0009393A rare, genetic disorder of urea cycle metabolism characterized by either a neonatal-onset with manifestations of lethargy, poor feeding, vomiting and tachypnea or, more commonly, presentations in infancy, childhood or adulthood with chronic neurocognitive deficits, acute encephalopathy and/or coagulation defects or other chronic liver dysfunction.
Also known as: HHH syndrome, ORNT1 deficiency, hyperornithinemia-hyperammonemia-homocitrullinemia syndrome, ornithine carrier deficiency, ornithine translocase deficiency, triple H syndrome, HHH, HHHS
28 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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One-Time gene fix could free kids from lifelong diet and meds
Disease control Not yet recruitingThis early-phase trial tests a single intravenous dose of a gene editing therapy called LNP.UCD.ABE in 7 children with severe urea cycle disorders. The therapy aims to correct the genetic defect using a lipid nanoparticle to deliver a base editor. The main goal is to check safety…
Phase: PHASE1, PHASE2 • Sponsor: Rebecca Ahrens-Nicklas • Aim: Disease control
Last updated Jul 01, 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