Clinical trials: Hyperammonemia
Urea Cycle Disorders
To Evaluate the Safety of Long-term Use of HPN-100 in the Management of Urea Cycle Disorders (UCDs)
This was an open-label, long-term safety study of HPN-100 (RAVICTI; glycerol phenylbutyrate) in participants with a urea cycle disorder (UCD) who completed the safety extensions of HPN-100-005 (NCT00947544; HPN-100-005SE)…
- Trial name
- NCT01257737
- Testing
- HPN-100
- Where
- 16 sites in United States, Canada
- Volunteers
- 88 people
- Sponsor
- Amgen
Hyperammonemia
PK Profile and Preliminary Efficacy of TNP-2092 Capsules in Liver Cirrhosis Patients With Hyperammonemia
The aim of this study was to evaluate the safety, tolerability, and pharmacokinetic characteristics of TNP-2092 Capsules in liver cirrhosis patients with hyperammonemia; and to preliminarily observe the effects of the study drug…
- Trial name
- NCT06135675
- Testing
- TNP-2092 capsules
- Where
- China
- Volunteers
- 36 people
- Sponsor
- TenNor Therapeutics (Suzhou) Limited
Propionic Acidemia, Type I and/or Type II, Methylmalonic Acidemia
Short-Term Outcome of N-Carbamylglutamate in the Treatment of Acute Hyperammonemia
The overall objective of this drug trial is to determine whether the treatment of acute hyperammonemia with N-carbamyl-L-glutamate (NCG, Carglumic acid) in propionic acidemia (PA), methylmalonic acidemia (MMA), late-onset CPS1…
- Conditions
- Propionic Acidemia, Type I and/or Type II, Methylmalonic Acidemia, Carbamoyl-Phosphate Synthase I Deficiency Disease, Ornithine Carbamoyltransferase Deficiency
- Trial name
- STO (NCT01599286)
- Testing
- Carbaglu
- Where
- 9 sites in United States
- Volunteers
- 35 people
- Sponsor
- Mendel Tuchman
Urea Cycle Disorders
Study of the Safety, Pharmacokinetics and Efficacy of HPN-100, in Pediatric Subjects With Urea Cycle Disorders (UCDs)
This non-randomized, open-label study was approximately one year in duration and consisted of a short term NaPBA to HPN-100 switchover part involving two overnight stays followed by a 12-month long term treatment period involving…
- Trial name
- NCT01347073
- Testing
- HPN-100
- Where
- 8 sites in United States
- Volunteers
- 23 people
- Sponsor
- Amgen
Urea Cycle Disorders
Study of the Safety and Tolerability of HPN-100 Compared to Sodium Phenylbutyrate in Children With Urea Cycle Disorders
Protocol HPN-100-005 was the first study of HPN-100 in pediatric subjects with urea cycle disorders (UCDs) and was a fixed-sequence, open-label, switch over study of HPN-100 with a long-term (12 month) safety extension designed…
- Trial name
- NCT00947544
- Testing
- HPN-100, NaPBA
- Where
- 8 sites in United States, Canada
- Volunteers
- 17 people
- Sponsor
- Amgen
Urea Cycle Disorders
Efficacy and Safety of HPN-100 for the Treatment of Adults With Urea Cycle Disorders
This was a randomized, active-controlled, double-blind, cross-over study designed to enroll subjects with UCDs who are being treated with NaPBA.
- Trial name
- NCT00992459
- Testing
- HPN-100, Buphenyl (NaPBA)
- Where
- 22 sites in United States, Canada
- Volunteers
- 46 people
- Sponsor
- Amgen
Ornithine Transcarbamylase Deficiency
Investigation of Brain Nitrogen in Partial Ornithine Transcarbamylase Deficiency (OTCD) Using 1 H MRS, DTI, and fMRI
The purpose of this study is to use various types of MRI and cognitive testing to evaluate changes in the brain and cognitive function that occur in subjects with ornithine transcarbamylase deficiency (OTCD) relative to healthy…
- Trial name
- NCT01569568
- Testing
- MRI scanning, Cognitive testing
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Andrea Gropman
Hyperammonemia
A Phase 1 Study to Evaluate PK Profile and Food Effects on PK Parameters of TNP-2092 Capsules
The aim of the study was to evaluate the tolerability and pharmacokinetic characteristics of TNP-2092 Capsules after single-dose administration in healthy subjects, and the food effect on pharmacokinetics.
- Trial name
- NCT06178718
- Testing
- TNP-2092 capsules
- Where
- China
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- TenNor Therapeutics (Suzhou) Limited
Urea Cycle Disorder
A Study of the Safety, Efficacy and Pharmacokinetics of Glycerol Phenylbutyrate in Pediatric Subjects Under 2 Years of Age With Urea Cycle Disorders
This is an open-label study consisting of a transition period to RAVICTI, followed by a safety extension period for at least 6 months and up to 24 months of treatment with RAVICTI, depending on age at enrollment.
- Trial name
- NCT02246218
- Testing
- RAVICTI
- Where
- 17 sites in United States, Canada
- Volunteers
- 27 people
- Sponsor
- Amgen
Urea Cycle Disorders
Study of the Safety of HPN (Hyperion)-100 for the Long-Term Treatment of Urea Cycle Disorders (Treat UCD)
This was a long-term safety study HPN-100 in urea cycle disorder (UCD) subjects. Subjects were assessed regularly for safety and control of their venous ammonia.
- Trial name
- NCT00947297
- Testing
- HPN-100
- Where
- 22 sites in United States, Canada
- Volunteers
- 60 people
- Sponsor
- Amgen
Acute Episode of Overt Hepatic Encephalopathy, Hepatic Encephalopathy
Phase 2B Efficacy/Safety of Ornithine Phenylacetate in Hospitalized Cirrhotic Patients With Hepatic Encephalopathy (STOP-HE)
The purpose of this study is to determine whether ornithine phenylacetate can speed recovery from an acute hepatic encephalopathy episode requiring hospitalization in cirrhotic patients.
- Trial name
- STOP-HE (NCT01966419)
- Testing
- ornithine phenylacetate
- Where
- 131 sites in United States, Australia and 15 more
- Volunteers
- 231 people
- Sponsor
- Ocera Therapeutics, Inc.
Hyperinsulinism-Hyperammonemia Syndrome
Vitamin E Supplementation in Hyperinsulinism/Hyperammonemia Syndrome
Investigators will assess the tolerability of oral Vitamin E supplementation in subjects with congenital hyperinsulinism (HI) and hyperammonemia (HA) syndrome.
- Trial name
- NCT03797222
- Testing
- Vitamin E
- Where
- United States
- Volunteers
- 14 people
- Sponsor
- Elizabeth A Rosenfeld