Clinical trials: Phenylketonuria (PKU) and Hyperphenylalaninemia
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
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)
Phenylketonuria (PKU)
The Impact of Frequency of Home Phenylalanine Measurements on Metabolic Control in a Population of Patients With Classic Phenylketonuria
Recommendations regarding the frequency of phenylalanine level monitoring lack solid support from evidence derived from prospective randomized trials, including in the adult population with classic PKU.
- Trial name
- FreqPHEncy (NCT07825883)
- Testing
- DBS Phe monitoring once weekly, DBS Phe monitoring once monthly
- Where
- Poland
- Volunteers
- 36 people
- Sponsor
- Michał Kania
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
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
Non-Phenylketonuric Hyperphenylalaninemia
Phenylalanine-free Diet for Patients With Secondary Hyperphenylalaninemia in ICU
Hyperphenylalaninemia is not only present in patients with congenital phenylketonuria. In adults with critical illness, hyperphenylalaninemia is noted in some patients and is associated with high mortality rate.
- Trial name
- NCT04896281
- Testing
- Phenylalanine-free milk
- Where
- Taiwan
- Volunteers
- 100 people
- Sponsor
- Chang Gung Memorial Hospital
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
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, 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
Phenylketonuria
Immune Modulation During Palynziq® Treatment in Adults (IMPALA)
Study 165-401 is a Phase 4, open-label study designed to examine the concomitant use of methotrexate (MTX) to suppress immune responses to Palynziq and improve tolerability and efficacy in adults with PKU.
- Trial name
- NCT07477691
- Testing
- Pegvaliase, Methotrexate
- Where
- 12 sites in United States
- Volunteers
- 12 people
- Sponsor
- BioMarin Pharmaceutical
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
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
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
Phenylketonurias, PAH Deficiency
Gene Therapy Clinical Study in Adult PKU
This is a Phase 1/2, open-label, randomized, concurrently-controlled, dose escalation study to evaluate the safety and efficacy of HMI-102 in adult PKU subjects with PAH deficiency.
- Trial name
- pheNIX (NCT03952156)
- Testing
- HMI-102
- Where
- 13 sites in United States
- Volunteers
- 10 people
- Sponsor
- Homology Medicines, Inc
Phenylketonuria, Mild Hyperphenylalaninemia
Neurocognitive Outcomes in Mild Hyperphenylalaninemia (MHP)MHP Study
Phenylketonuria (PKU) is a genetic disorder known to cause severe reduction in intelligence and deficits in cognitive function; it is associated with an elevated level of Phenylalanine (Phe) in blood.
- Trial name
- NCT01924026
- Where
- Canada
- Volunteers
- 10 people
- Sponsor
- The Hospital for Sick Children
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
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 (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
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
PKU, Hyperphenylalaninemia
Antioxidant Signature in Adult Patients With Phenylketonuria
To date, oxidative stress in PKU has been evaluated only with fragmented approaches.The aim of the present study is to investigate oxidative stress in PKU with more comprehensive methods.The relationship between oxidative stress…
- Trial name
- StressOX-PCU (NCT02212288)
- Testing
- Blood sample, Urine sample
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University Hospital, Tours