Clinical trials: Hyperphenylalaninaemia
Tetrahydrobiopterin Deficiency
Retrospective Observational Safety Effectiveness With Kuvan in hpA
A retrospective study to collect the effectiveness and safety data of the past treatment with KUVAN in Chinese patients with HPA caused by BH4 deficiency.
- Trial name
- ROSEKA (NCT03864029)
- Testing
- KUVAN
- Where
- China
- Volunteers
- 26 people
- Sponsor
- BioMarin Pharmaceutical
Phenylketonuria, Hyperphenylalaninemia
Biological Variation of Phenylalanine in Patients With Hyperphenylalaninemia
Phenylketonuria (PKU) is a rare disease where the level of phenylalanine (one of the amino acids) in the body is greatly increased. High levels can cause brain damage, especially in babies and children.
- Trial name
- NCT01869972
- Where
- 2 sites in Canada
- Volunteers
- 32 people
- Sponsor
- Hamilton Health Sciences Corporation
Phenylketonuria (PKU) and Hyperphenylalaninemia
Phenylketonuria and Hyperphenylalaninemia Nutrition Study
The mainstay of PKU treatment is a low-phenylalanine diet (i.e restriction of natural protein), and supplementation with a protein substitute (a mixture of amino acids free from phenylalanine, also containing micronutrients and…
- Trial name
- NCT01879995
- Where
- 2 sites in Switzerland
- Volunteers
- 30 people
- Sponsor
- University of Zurich
Phenylketonuria, Hyperphenylalaninaemia
PKUDOS: Phenylketonuria (PKU) Demographic, Outcomes, and Safety Registry
The objective of this study is to evaluate the safety of long-term treatment with Kuvan.
- Trial name
- PKUDOS (NCT00778206)
- Testing
- Kuvan
- Where
- 45 sites in United States
- Volunteers
- 1,887 people
- Sponsor
- BioMarin Pharmaceutical
Phenylketonurias, Hyperphenylalaninaemia
Acceptability and Tolerance of a Ready-to-use Protein Substitute in Tablet Form for the Dietary Management of Phenylketonuria
The purpose of this prospective, observational study is to evaluate the tolerability and acceptability of phenylalanine-free protein substitute tablets for young children with PKU aged of 7 years or older.
- Conditions
- Phenylketonurias, Hyperphenylalaninaemia, Tetrahydrobiopterin Deficiency
- Trial name
- NCT04375592
- Testing
- Phenylalanine-free protein substitute in tablet form (XPhe minis)
- Where
- United Kingdom
- Volunteers
- 10 people
- Sponsor
- metaX Institut fuer Diatetik GmbH
Phenylketonuria (PKU) and Hyperphenylalaninemia, Brain Diseases, Metabolic, Inborn
Market Research of a Slow Release Protein Substitute for the Dietary Management of PKU
XPhePiccosMR is a prospective, single-arm, open label, observational study that aims to evaluate the acceptability and tolerability of XPhe Piccos, a slow-release, phenylalanine-free protein substitute in the form of tiny…
- Conditions
- Phenylketonuria (PKU) and Hyperphenylalaninemia, Brain Diseases, Metabolic, Inborn, Brain Disorder, Metabolic, Brain Diseases
- Trial name
- XPhePiccosMR (NCT07802366)
- Testing
- Slow release, phenylalanine-free protein substitute tablets
- Where
- United Kingdom
- Volunteers
- 10 people
- Sponsor
- metaX Institut fuer Diatetik GmbH
Tetrahydrobiopterin Deficiencies, Hyperphenylalaninemia, Non-Phenylketonuric
Safety and Efficacy Study of Phenoptin in Subjects With Hyperphenylalaninemia Due to BH4 Deficiency
The purpose of this study is to evaluate the ability of Phenoptin to control blood phenylalanine levels in subjects who have hyperphenylalaninemia due to a primary BH4 deficiency and to evaluate the safety of Phenoptin in this…
- Trial name
- NCT00355264
- Testing
- Phenoptin
- Where
- 10 sites in United States, Germany
- Volunteers
- 12 people
- Sponsor
- BioMarin Pharmaceutical
Phenylketonurias, Hyperphenylalaninaemia
PKU Low Calorie Drink Study
This study will evaluate the compliance, acceptability, gastrointestinal (GI) tolerance and safety of a lower calorie amino acid based liquid protein substitute for patients with Phenylketonuria (PKU) or hyperphenylalaninemia…
- Trial name
- NCT04272736
- Testing
- Low calorie protein substitute
- Sponsor
- Nutricia UK Ltd
Phenylketonuria
Sapropterin Expanded Access Program
The Purpose of this study is to provide patients with hyperphenylalaninemia (HPA) due to Phenylketonuria (PKU) access to sapropterin dihydrochloride and to collect more information about the safety of the drug in an expanded…
- Trial name
- NCT00484991
- Testing
- Sapropterin dihydrochloride
- Where
- 36 sites in United States
- Sponsor
- BioMarin Pharmaceutical
Phenylketonuria
Response to Phenylketonuria to Tetrahydrobiopterin (BH4)
The purpose of this study is to determine whether tetrahydrobiopterin (BH4)is effective in treating patients with PKU.
- Trial name
- NCT00244218
- Testing
- tetrahydrobiopterin (BH4)
- Where
- United States
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- The University of Texas Medical Branch, Galveston
Hyperphenylalaninemia (HPA) Due to Phenylketonuria (PKU) or Tetrahydrobiopterin (BH4) Deficiency
Observational Study on the Long Term Safety of Kuvan® Treatment in Patients With Hyperphenylalaninemia (HPA) Due to Phenylketonuria (PKU) or BH4 Deficiency
Kuvan® is a synthetic copy of a body's own substance called tetrahydrobiopterin (BH4). BH4 is required by the body to use an amino acid called phenylalanine in order to build another substance called tyrosine.
- Trial name
- KAMPER (NCT01016392)
- Where
- 69 sites in Austria, France and 7 more
- Volunteers
- 627 people
- Sponsor
- BioMarin Pharmaceutical
Phenylalanine Hydroxylase Deficiencies
Long-Term Tetrahydrobiopterin Treatment in PKU Patients of 0-18 Years - Study on Phenylalanine Tolerance and Safety
The aim of the study is to confirm the efficacy and safety of BH4 in the treatment of hyperphenylalaninemia caused by phenylalanine hydroxylase deficiency in patients responsive to BH4.
- Trial name
- NCT00432822
- Testing
- tetrahydrobiopterin (BH4)
- Volunteers
- 50 people
- Sponsor
- Orphanetics Pharma Entwicklungs GmbH
BH4 Deficiency, Hyperphenylalaninemia
A Study of PTC923 (CNSA-001) in Primary Tetrahydrobiopterin (BH4) Deficient Participants With Hyperphenylalaninemia
This study has been designed to demonstrate the safety, pharmacokinetics (PK) and preliminary efficacy of PTC923 (CNSA-001) in reducing blood phenylalanine concentrations in participants with hyperphenylalaninemia due to primary…
- Trial name
- NCT03519711
- Testing
- PTC923
- Where
- 4 sites in United States
- Volunteers
- 8 people
- Sponsor
- PTC Therapeutics
Phenylketonuria
Low Phenylalanine Diet for Mothers With Phenylketonuria (PKU)
Phenylketonuria (PKU) is a rare genetic condition. If not treated, PKU can cause severe mental retardation. Women with PKU are advised to eat a special diet when pregnant to prevent mental retardation in their children.
- Trial name
- NCT00065299
- Testing
- Restricted phenylalanine diet
- Where
- 3 sites in United States
- Volunteers
- 572 people, healthy volunteers welcome
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Spinal Muscular Atrophy, Fragile X Syndrome
Early Check: Expanded Screening in Newborns
Early Check provides voluntary screening of newborns for a selected panel of conditions. The study has three main objectives: 1) develop and implement an approach to identify affected infants, 2) address the impact on infants and…
- Conditions
- Spinal Muscular Atrophy, Fragile X Syndrome, Fragile X - Premutation, Duchenne Muscular Dystrophy
- Trial name
- NCT03655223
- Testing
- Confirmatory Testing
- Where
- United States
- Volunteers
- 30,000 people, healthy volunteers welcome
- Sponsor
- RTI International
Phenylketonuria
Response to Kuvan® in Subjects With Phenylketonuria (PKU) in a 4 Weeks Testing Period
The primary objective of the study is to evaluate the proportion of responders (that is, greater than or equal to [>=] 30 percent reduction from Baseline in blood phenylalanine [Phe] level) to treatment with Kuvan® (sapropterin…
- Trial name
- ENDURE (NCT01082328)
- Testing
- Kuvan®
- Where
- Norway
- Volunteers
- 59 people
- Sponsor
- Merck KGaA, Darmstadt, Germany
Plasmodium Falciparum Malaria
Hyperphenylalaninemia in Cerebral Malaria
The purpose of this study is to see if children, who develop coma from malaria, are not making enough of a vitamin-like chemical, tetrahydrobiopterin (BH4), which is required for the brain to function normally.
- Trial name
- NCT00338520
- Where
- Tanzania
- Volunteers
- 285 people, healthy volunteers welcome
- Sponsor
- University of Utah
Phenylketonurias, Hyperphenylalaninaemia, Type I
Evaluating the Efficacy of PKU Synergy in Patients Expressing Phenylketonuria or Hyperphenylalaninemia
This study centres around a new one-a-day phenylalanine-free protein substitute for phenylketonuria patients. Fifty eligible adults (≥ 16 years) with proven phenylketonuria or hyperphenylalaninemia will be recruited and randomly…
- Trial name
- NCT03167697
- Testing
- Synergy, Routine
- Where
- 6 sites in United Kingdom
- Volunteers
- 14 people
- Sponsor
- Nutricia UK Ltd
Phenylketonuria (PKU) and Hyperphenylalaninemia
PheCheck™ Validation Study
The goal of this observational study is to evaluate the performance of the PheCheck™ test for the rapid detection of phenylalanine (Phe) from a fingerstick sample, in patients 1 year or older with phenylketonuria (PKU) or…
- Trial name
- NCT07551921
- Testing
- PheCheck, Dried Blood Spot Cards.
- Where
- 2 sites in United States
- Volunteers
- 60 people
- Sponsor
- Aptatek BioSciences, Inc