Clinical trials: Amino Acid Metabolism
Phenylketonuria
Nutritional and Neurotransmitter Changes in PKU Subjects on BH4
HYPOTHESIS: The investigators hypothesize that KuvanTM therapy could influence nutritional and body composition parameters and neurotransmitter concentrations in pediatric and adult PKU subjects.
- Trial name
- BH4&PKU (NCT00688844)
- Testing
- KuvanTM Therapy
- Where
- 2 sites in United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Emory University
Disaster, Vulnerable Populations
Nurses Taking On Readiness Measures - Mercer County, New Jersey
Nurses Taking On Readiness Measures (N-TORM) is an innovative nurse-driven household emergency preparedness (HEP) intervention modeled after an existing community intervention provided by emergency management personnel.
- Trial name
- NTORM (NCT05455580)
- Testing
- Nurses Taking On Readiness Measures (N-TORM)
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Hunter College of City University of New York
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
Phenylketonuria (PKU)
Safety and Efficacy of Self Administered Injections of Pegvaliase (>40mg/Day Dose) in Adults With PKU
This is a Phase 3 open-label extension study enrolling adult patients with PKU who were previously treated with pegvaliase in Studies PAL-003 (NCT00924703) or 165-302 (NCT02468570).
- Trial name
- NCT03694353
- Testing
- Pegvaliase
- Where
- 17 sites in United States
- Volunteers
- 37 people
- Sponsor
- BioMarin Pharmaceutical
Osteoarthritis
Muscle Regrowth During Physical Rehabilitation and Amino Acid Supplementation
The general hypothesis is that in older adults muscle regrowth after an acute musculoskeletal stress will be positively influenced by traditional physical rehabilitation, and further enhanced by nutritional supplementation.
- Trial name
- NCT00760383
- Testing
- Essential amino acids, Alanine
- Where
- 2 sites in United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Oregon
Phenylketonuria
Efficacy and Safety of SYNB1934 in Patients With PKU (SYNPHENY-3)
SYNB1934-CP-003 was designed as a 3-part, adaptive study consisting of a dose-escalating, open-label period (DEP; Part 1) of up to 15 weeks, followed by a 4-week, double-blind, placebo-controlled, randomized withdrawal period…
- Trial name
- SYNPHENY-3 (NCT05764239)
- Testing
- SYNB1934v1
- Where
- 21 sites in United States, Canada and 2 more
- Volunteers
- 35 people
- Sponsor
- Synlogic
Argininosuccinic Aciduria, Amino Acid Metabolism, Inborn Errors
Arginine and Buphenyl in Patients With Argininosuccinic Aciduria (ASA), a Urea Cycle Disorder
Urea cycle disorders are inherited illnesses in which the body does not produce enough of the chemicals that remove ammonia, a byproduct of protein metabolism, from the blood stream.
- Conditions
- Argininosuccinic Aciduria, Amino Acid Metabolism, Inborn Errors, Urea Cycle Disorders
- Trial name
- NCT00345605
- Testing
- Sodium Phenylbutyrate, Arginine
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- Brendan Lee
Phenylketonuria (PKU)
Phase 3 Study to Evaluate the Efficacy & Safety of Self-Administered Injections of BMN165 by Adults With PKU
The BMN 165 clinical development program has been designed to demonstrate the safety and efficacy of BMN 165 in reducing blood Phe concentrations in adults with PKU.
- Trial name
- Prism-2 (NCT01889862)
- Testing
- BMN165 20mg/day, BMN165 40mg/day
- Where
- 29 sites in United States
- Volunteers
- 215 people
- Sponsor
- BioMarin Pharmaceutical
Hereditary Tyrosinemia, Type I
Bioequivalence Study of Two Nitisinone Formulations Compared to Orfadin
The purpose of this study is to determine whether Nitisinone 10 mg Tablets (Test Product 1 (TP1)) and Nitisinone 10 mg Tablets High Compritol (Test Product 2 (TP2)) are bioequivalent to the reference product Orfadin 10 mg…
- Trial name
- NCT02750709
- Testing
- Nitisinone, Nitisinone 10 mg Tablet High Compritol, Orfadin
- Where
- South Africa
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Cycle Pharmaceuticals Ltd.
Arginase 1 Deficiency
Pegzilarginase in Subjects <24 Months Old With Arginase 1 Deficiency
This is an open-label, multicentre study to evaluate the safety, PK, and activity (PD) of weekly subcutaneous (SC) administration of pegzilarginase in subjects with ARG1-D who are < 24 months of age.
- Trial name
- NCT06582524
- Testing
- Pegzilarginase
- Where
- 3 sites in Austria, Portugal and 1 more
- Volunteers
- 3 people
- Sponsor
- Immedica Pharma AB
Phenylketonurias
Evaluation of Phe Fluctuation in PKU Pts Treated With PKU GOLIKE Versus Standard Amino Acid Protein Substitute.
This is a 2 arm, randomised, controlled, cross-over study in 16 children with PKU. Subjects who are currently taking a Phe free/low Phe protein substitute will be recruited for a 31-day trial.
- Trial name
- NCT05487378
- Testing
- PKU GOLIKE
- Where
- United Kingdom
- Volunteers
- 16 people
- Sponsor
- APR Applied Pharma Research s.a.
Optical Coherence Tomography (OCT) of the Retina
Low Cost OCT for Point of Care
The purpose of this study is to compare the performance of a prototype optical coherence tomography (OCT) machine with currently available high resolution OCT machines.
- Trial name
- NCT03323307
- Testing
- OCT imaging
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- Duke University
Brain Diseases, Metabolic, Inborn, Urea Cycle Disorder
Neurologic Injuries in Adults With Urea Cycle Disorders
Urea cycle disorders (UCDs) are a group of rare inherited metabolism disorders. The purpose of this study is to evaluate how UCD-related neurologic injuries affect adults with one of the most common types of UCD.
- Conditions
- Brain Diseases, Metabolic, Inborn, Urea Cycle Disorder, Ornithine Transcarbamylase Deficiency
- Trial name
- NCT00472732
- Where
- 2 sites in United States
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Andrea Gropman
Endothelial Dysfunction, Hyperhomocysteinemia
Effect of L-Arginine and Pycnogenol on Light to Moderate Hypertension and Endothelial Function
The effect of a combination product (Verum ) with L-arginine, Pycnogenol, vitamin K2, R-(+)-alpha-lipoic acid and vitamins B6, B12 and folic acid is investigated in a double blind placebo-controlled cross-over study.
- Conditions
- Endothelial Dysfunction, Hyperhomocysteinemia, Hypertension Grade I, Subgroup "Borderline" (WHO)
- Trial name
- NCT02392767
- Testing
- Verum
- Where
- Germany
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Dr. Loges & Co. GmbH
Phenylketonuria
Kuvan Therapy in Phenylketonuria (PKU): The Effect of Blood Phenylalanine Concentration on Kuvan Response
The investigators will investigate the effect of blood phenylalanine on Kuvan responsiveness in the same patients with PKU when their blood phenylalanine concentrations are altered by diet.
- Trial name
- NCT00841100
- Testing
- Kuvan, Diet
- Where
- United States
- Volunteers
- 21 people
- Sponsor
- University of Miami
Maple Syrup Urine Disease
Phenylbutyrate Therapy for Maple Syrup Urine Disease
The investigators have learned in past research that the drug phenylbutyrate can decrease the amounts of branched chain amino acids and their byproducts in the bloodstreams of healthy volunteer patients and also patients with…
- Trial name
- MSUD (NCT01529060)
- Testing
- Phenylbutyrate
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Brendan Lee
Arginase I Deficiency, Hyperargininemia
Efficacy and Safety of Pegzilarginase in Patients With Arginase 1 Deficiency
CAEB1102-300A is a multi-center randomized, double-blind, placebo-controlled study to evaluate the safety and efficacy of pegzilarginase in patients with ARG1-D.
- Trial name
- NCT03921541
- Testing
- Pegzilarginase
- Where
- 32 sites in United States, Austria and 5 more
- Volunteers
- 32 people
- Sponsor
- Immedica Pharma AB
Schizophrenia, Psychotic Disorders
Acute Glycine Pharmacodynamic Study
The purpose of this study is to use proton magnetic resonance spectroscopy (MRS) at 4 Tesla to measure brain glycine levels noninvasively at baseline and for 2 hours after a single oral dose of a concentrated glycine-containing…
- Trial name
- NCT01610011
- Testing
- Glycine administration
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Mclean Hospital
Alkaptonuria
Nitisinone (NTBC) In Different Age Groups Of Patients With Alkaptonuria
Nitisinone is a potent inhibitor of the enzyme that catalyzes the formation of homogentisic acid, and should be an even more logical treatment for alkaptonuria than for tyrosinemia, for which it has been approved by the FDA.The…
- Trial name
- NCT01390077
- Testing
- Nitisinone
- Where
- United States
- Volunteers
- 8 people
- Sponsor
- University of California, San Diego
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