Clinical trials: Amino Acid Metabolism
Phenylketonurias
Study to Evaluate the Safety and Efficacy of Phenoptin™ in Subjects With Phenylketonuria Who Have Elevated Phenylalanine Levels
The primary objective of this study is to evaluate the efficacy of Phenoptin™ (sapropterin dihydrochloride) in reducing blood phenylalanine (Phe) levels in subjects with phenylketonuria.
- Trial name
- NCT00104247
- Testing
- sapropterin dihydrochloride, 6R-BH4, tetrahydrobiopterin
- Where
- 13 sites in United States
- Volunteers
- 89 people
- Sponsor
- BioMarin Pharmaceutical
Ornithine Transcarbamylase (OTC) Deficiency
Safety and Dose-Finding Study of DTX301 (scAAV8OTC) in Adults With Late-Onset Ornithine Transcarbamylase (OTC) Deficiency
This is a Phase 1/2, open-label, single arm, multicenter, safety and dose finding study of DTX301 in adults with late-onset OTC deficiency.
- Trial name
- CAPtivate (NCT02991144)
- Testing
- scAAV8OTC, Reactive Corticosteroid Taper Regimen, Prophylactic Corticosteroid Taper Regimen
- Where
- 9 sites in United States, Canada and 2 more
- Volunteers
- 16 people
- Sponsor
- Ultragenyx Pharmaceutical Inc
Peritoneal Dialysis, Diabetes
Clinical Study of the Use of Amino Acid Peritoneal Dialysate in Diabetic Patients
The study is a single center, open, prospective, self controlled clinical study. The patients with diabetes who are to be enrolled in peritoneal dialysis are to observe the changes of glycosylated hemoglobin relative to the…
- Trial name
- NCT07077538
- Testing
- Amino acid peritoneal dialysis solution
- Where
- China
- Volunteers
- 70 people
- Sponsor
- The People's Hospital of Gaozhou
Uveitis, Posterior
Role of OCT & OCT Angiography in Patients With Posterior at the Uveitis Clinic of Assiut University Hospital.
OCT angiography is a recent evaluation of OCT technology which combines the structural assessment of ocular tissues obtained by OCT image with visualization of blood flow within the vessels in imaged area.
- Trial name
- NCT06743906
- Volunteers
- 25 people
- Sponsor
- Assiut University
Coronary Artery Disease
Observational Study of OCT in a Patients Undergoing FFR
The purpose of this study is to define and evaluate optical coherence tomography (OCT) stent guidance parameters through prospective data collection in percutaneous coronary intervention (PCI) procedures of de novo lesions.
- Trial name
- ILUMIEN I (NCT01663896)
- Testing
- OCT stent guidance
- Where
- 36 sites in United States, Australia and 12 more
- Volunteers
- 418 people
- Sponsor
- Abbott Medical Devices
Tyrosinemia, AKU
Evaluation of TYR Sphere in France
10 participants aged 3 years and over with tyrosinaemia or alkaptonuria will be prescribed Tyr sphere following an assessment of their individual needs by their dietitian.
- Trial name
- TYR sphere Fra (NCT04761588)
- Testing
- Tyr sphere
- Where
- France
- Volunteers
- 14 people
- Sponsor
- Vitaflo International, Ltd
Phenylketonuria, Endothelial Dysfunction
Observational Study of Endothelial Dysfunction in Phenylketonuria
The purpose of this study is to determine whether adolescent and adult patients with phenylketonuria who are on long-term phenylalanine-restricted diet suffer from endothelial dysfunction.
- Trial name
- NCT02176603
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Charite University, Berlin, Germany
Coronary Artery Calcification, Angioplasty
CAlcified Lesion Intervention Planning Steered by OCT.
Calcified lesions are very frequent among coronary artery disease stenotic lesions. The prevalence of calcifications ranges from 30 to 40% (by angiography evaluation) but is higher when analyzed by intra coronary imaging.
- Trial name
- CALIPSO (NCT05301218)
- Testing
- angioplasty
- Where
- 14 sites in France
- Volunteers
- 140 people
- Sponsor
- Institut Mutualiste Montsouris
Pre-diabetes, Obese
Investigation of an Amino Acid Supplement on Glucose Levels in Obese Subjects
This study aims to determine whether the use of Branched-Chain Amino Acids (BCAA's) regulate insulin and glucagon secretion, and whether the supplement has any effect on body weight and body composition.
- Conditions
- Pre-diabetes, Obese, Glucose Intolerance
- Trial name
- NCT03715010
- Testing
- BCAA
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Phenylketonuria
A Study of JNT-517 in Participants With Phenylketonuria (PKU)
This Phase 3 study will evaluate the safety, effectiveness, tolerability, and how the body processes JNT-517 in children, adolescents, and adults with phenylketonuria.
- Trial name
- NCT06971731
- Testing
- JNT-517
- Where
- 26 sites in United States, Australia and 8 more
- Volunteers
- 120 people
- Sponsor
- Otsuka Pharmaceutical Development & Commercialization, Inc.
Cytomegalovirus Infections, HIV Infections
A Study of AZT Plus Ganciclovir in Patients With AIDS and Cytomegalovirus (CMV) Infection
To evaluate the clinical and laboratory toxicity of ganciclovir (GCV) and zidovudine (AZT) when given in combination. Because recent information has shown AZT to be useful in treating AIDS, it is assumed that most patients with…
- Trial name
- NCT00000995
- Testing
- Zidovudine, Ganciclovir
- Where
- 3 sites in United States
- Volunteers
- 60 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Chronic Intestinal Failure, Intestinal Failure
Anabolic Response To Intravenous Amino Acids In Chronic Intestinal Failure Patients
The purpose of this study is to gain insight into the actual protein requirements of patients with chronic intestinal failure (CIF) receiving home parenteral nutrition, which could improve clinical management of these patients.
- Conditions
- Chronic Intestinal Failure, Intestinal Failure, Home Parenteral Nutrition
- Trial name
- NCT07422792
- Testing
- Intravenous Amino Acids
- Where
- Slovenia
- Volunteers
- 40 people
- Sponsor
- Institute of Oncology Ljubljana
Homocysteine, Coronary Disease
The Relationship Between HHcy and Contrast-induced Nephropathy in Hypertensive Patients After Coronary Artery Diagnosis and Treatment
Contrast-induced nephropathy has become the third-largest cause of hospital acquired acute renal injury, and which morbidity is only less than that of renal hypoperfusion and renal toxicity of drugs, about 11%of all cases.
- Conditions
- Homocysteine, Coronary Disease, Angioplasty,Balloon,Coronary, Contrast Media
- Trial name
- CONTRAST-CADT (NCT02575092)
- Testing
- Enalapril Maleate Tablets(as the program-based antihypertension), Enalapril Maleate and Folic Acid tablets(as the program-based antihypertension)
- Where
- China
- Volunteers
- 4,000 people
- Sponsor
- Fuling Central Hospital of Chongqing City
Vitiligo, Piebaldism
Evaluation of Non-cultured Epidermal Cellular Grafting vs Hyaluronic Acid for Repigmenting Vitiligo and Piebaldism
The purpose of this study is to assess the efficacy of autologous epidermal cells suspension grafting using a newly developed device named VITICELL® compared to placebo.
- Trial name
- NCT02156427
- Testing
- VITICELL
- Where
- 5 sites in Belgium, France and 1 more
- Volunteers
- 38 people
- Sponsor
- Laboratoires Genévrier
Creatine Synthesis in Healthy Subjects
Creatine Kinetics, Synthesis From Glycine and Response to Creatine and Amino Acid Supplement in Healthy Humans
The goal of the present study is to quantify the rate of synthesis of creatine in healthy controls and endurance trained subjects.
- Trial name
- NCT01725503
- Testing
- Creatine and Amino Acid supplement
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- The Cleveland Clinic
Phenylketonurias
Study to Evaluate the Response to and Safety of an 8-Day Course of Phenoptin™ Treatment in Subjects With Phenylketonuria
The primary objective is to evaluate the degree and frequency of response to Phenoptin™ (sapropterin dihydrochloride), as demonstrated by a reduction in blood phenylalanine (Phe) level among subjects with phenylketonuria (PKU)…
- Trial name
- NCT00104260
- Testing
- sapropterin dihydrochloride
- Where
- 13 sites in United States
- Volunteers
- 700 people
- Sponsor
- BioMarin Pharmaceutical
Tyrosinemia, Type I, Tyrosinemia, Type II
Acceptability/Tolerance of Protein Substitutes in Tablet Form for the Dietary Management of Rare Aminoacidopathies
The purpose of this prospective, observational study is to evaluate the tolerability and acceptability of Zero minis, a range of protein substitute tablets for use in the dietary management of children with either TYROSINAEMIA…
- Conditions
- Tyrosinemia, Type I, Tyrosinemia, Type II, Tyrosinemia, Type III, Alkaptonuria
- Trial name
- ZeroMinisMR (NCT06298292)
- Testing
- Zero minis (range of protein substitutes in tablet form)
- Volunteers
- 15 people
- Sponsor
- metaX Institut fuer Diatetik GmbH
Ornithine Transcarbamylase Deficiency
Safety, Tolerability and Pharmacokinetics of ARCT-810 in Healthy Adult Subjects
Determine the safety, tolerability and pharmacokinetics of single doses of ARCT-810 in healthy adult subjects.
- Trial name
- NCT04416126
- Testing
- ARCT-810
- Where
- New Zealand
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Arcturus Therapeutics, Inc.
Phenylketonuria
Safety, Tolerability, and Efficacy Study of rAvPAL-PEG Administered Daily in Subjects With Phenylketonuria (PKU)
The purpose of this study is to evaluate the effect of daily administration of rAvPAL-PEG on the reduction of blood Phe concentrations in subjects with PKU.
- Trial name
- NCT01212744
- Testing
- rAvPAL-PEG
- Where
- 9 sites in United States
- Volunteers
- 16 people
- Sponsor
- BioMarin Pharmaceutical
Prediabetic State
Effects of Branch Chain Amino Acids on Glucose Tolerance in Obese Pre-Diabetic Subjects
Branching chain amino acids (BCAA) have both beneficial and detrimental effects of on metabolism have been established and therefore warrants further investigation.
- Trial name
- BCAA (NCT02684565)
- Testing
- BCAA High Protein supplement, BCAA Low Protein supplement
- Where
- United States
- Volunteers
- 11 people
- Sponsor
- University of California, Los Angeles