Clinical trials: Amino Acid Metabolism
Ocular Albinism (OA), Oculocutaneous Albinism (OCA)
The Effects of Lutein and Zeaxanthin Supplementation on Vision in Patients With Albinism
The LUVIA study is a randomized placebo-controlled trial designed to investigate the effects of lutein and zeaxanthin supplementation on macular pigment and visual function in ocular or oculocutaneous albinism.
- Trial name
- LUVIA (NCT02200263)
- Testing
- Lutein plus Zeaxanthin
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Johns Hopkins University
Urea Cycle Disorder, Lysinuric Protein Intolerance
Th1, Th2, Th17 Phenotype in Urea Cycle Disorders
Infection-related hyperammonemia in patients with urea cycle disorders is an important cause of morbidity and mortality. The relationship between immune system cells and the metabolic pathways used by these cells and inborn…
- Trial name
- NCT05706714
- Where
- Turkey (Türkiye)
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- Istanbul University - Cerrahpasa
ARG1 Deficiency
Evaluation of the Safety of Loargys Arginine Test System in Loargys-treated Patients
Arginase 1 deficiency (ARG1-D) is a rare condition in which the body cannot properly break down a substance called arginine. This leads to high levels of arginine and related substances in the blood, which can cause serious…
- Trial name
- CLEAR (NCT07573059)
- Testing
- Loargys Arginine Test System
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- Immedica Pharma US Inc
Argininosuccinic Aciduria, Argininosuccinate Lyase Deficiency
Nitric Oxide Supplementation in Argininosuccinic Aciduria
This is a study involving a dietary supplement. Patients with argininosuccinic aciduria will be randomly assigned to receive either a nitric oxide dietary supplement or placebo for 2 weeks, and then crossed-over to receive the…
- Conditions
- Argininosuccinic Aciduria, Argininosuccinate Lyase Deficiency, Urea Cycle Disorders
- Trial name
- NCT02252770
- Testing
- Nitric oxide supplement
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- Baylor College of Medicine
Sexual Assault, Substance Use
Nexus of Risk: Sexual Assault, Alcohol Use, and Risky Sex Among College Women
Sexual assault on college campuses has reached epidemic proportions, yet the etiological variables responsible for violence against women in these contexts remain unclear.
- Conditions
- Sexual Assault, Substance Use, Risky Health Behavior, Ema
- Trial name
- NCT05892692
- Testing
- Ecological Momentary Intervention
- Where
- United States
- Volunteers
- 183 people, healthy volunteers welcome
- Sponsor
- University of New Mexico
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
Homocystinuria
Study of Homocysteine Metabolism in Homocystinuria
OBJECTIVES: I. Determine basal and postmethionine plasma homocysteine in patients with premature vascular disease, cystathionine beta-synthase (CBS) or methylenetitrahydrofolate reductase (MTHFR) deficiency, and in obligate…
- Trial name
- NCT00004356
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- National Center for Research Resources (NCRR)
Cytomegalovirus Infection
CMV Antiviral Prevention Strategies in D+R-Liver Transplants ("CAPSIL")
This is a trial of preemptive therapy vs. prophylaxis for prevention of Cytomegalovirus (CMV) disease in R-D+ liver transplant patients.
- Trial name
- NCT01552369
- Testing
- Valganciclovir
- Where
- 6 sites in United States
- Volunteers
- 205 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
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
Diabetes
Effects of an Amino Acid and Chromium-picolinate Containing Drink on Glucose Metabolism on Healthy Subjects
It has previously been shown in healthy overweight subjects, that table water including a defined amount of amino acids and chromium can decrease the postprandial glucose.
- Trial name
- NCT02487680
- Testing
- Amino Acids and chromium-picolinate containing drink
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- DoubleGood AB
End Stage Renal Disease (ESRD)
Evaluate the Efficacy and Safety of Amino Acid (15) Peritoneal Dialysis Solution in Peritoneal Dialysis Patients with Malnutrition.
This is a multicenter, randomized, parallel controlled Phase IV clinical study to evaluate the safety and efficacy of amino acid (15) peritoneal dialysis solution in patients undergoing peritoneal dialysis with malnutrition in…
- Trial name
- NCT06597201
- Testing
- amino acid (15) peritoneal dialysis solution, glucose peritoneal dialysis solution
- Where
- 21 sites in China
- Volunteers
- 400 people
- Sponsor
- Chengdu Qingshan Likang Pharmaceutical Co., Ltd
Phenylketonuria
Behavioral Effects of Kuvan in Children With Mild Phenylketonuria
The purpose of this study is to determine whether improvements in behavior occur in children with phenylketonuria (PKU) who are taking Kuvan.
- Trial name
- NCT00827762
- Testing
- Kuvan
- Where
- 4 sites in United States
- Volunteers
- 2 people
- Sponsor
- Washington University School of Medicine
Albinism
Trial of L-DOPA as a Treatment to Improve Vision in Albinism
This project will evaluate the effect of two doses of levodopa (L-DOPA) in a randomized, placebo-controlled, double-masked clinical trial to see if vision can be improved in individuals with albinism.
- Trial name
- NCT01176435
- Testing
- Levodopa
- Where
- United States
- Volunteers
- 45 people
- Sponsor
- University of Minnesota
Propionic Acidemia, Methylmalonic Acidemia
Long-term Outcome of N-Carbamylglutamate Treatment in Propionic Acidemia and Methylmalonic Acidemia
Background: Very few drugs exist that treat hyperammonemia, specifically PA and MMA. Diet restrictions and alternate pathway agents are the current primary treatments, but they frequently fail to prohibit brain damage.
- Trial name
- NCT01597440
- Testing
- N-carbamylglutamate, Standard of Care
- Where
- 7 sites in United States
- Volunteers
- 1 people
- Sponsor
- Mendel Tuchman
Type 2 Diabetes
The Interaction Between Protein Intake, Gut Microbiota and Type 2 Diabetes in Subjects With Different Ethnic Backgrounds
Context and justification: There is growing evidence that the gut microbiota is a key element in the pathophysiology of cardio-metabolic diseases (CMD) such as Type 2 Diabetes (T2D).
- Trial name
- MICRODIET (NCT03732690)
- Testing
- Diet HP, Diet LP
- Where
- France
- Volunteers
- 65 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Phenylketonurias
Nutrition Status of Adults With PKU Before and During Treatment With Pegvaliase
Conduct a prospective, longitudinal study to evaluate nutritional status in adults with phenylketonuria (PKU) before and during treatment with pegvaliase (Palynziq™).
- Trial name
- NCT03856203
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- Boston Children's Hospital
Phenylketonurias
The Effects of CGMP in Children and Adults With PKU
Randomised controlled trial with a crossover design. For early and continuously treated patients with phenylketonuria (PKU) that are adherent.
- Trial name
- ELEMENT (NCT04076176)
- Testing
- CGMP protein substitute, L-amino acid protein substitute
- Where
- 3 sites in Denmark, United Kingdom
- Volunteers
- 12 people
- Sponsor
- Vitaflo International, Ltd
Transduction Pathway, Proteinic Synthesis
Amino Acid and Intestinal Protein Metabolism : Working Study
Gut protein metabolism that could be influenced by protein supply is involved in the regulation of several physiological functions such as gut barrier function and represents a major contribution in the whole-body protein…
- Conditions
- Transduction Pathway, Proteinic Synthesis, Proteolytic System
- Trial name
- Intesmetapro (NCT01254110)
- Where
- France
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University Hospital, Rouen
Amino Acid, Body Weight Changes
A Specialized Amino Acid Mixture on Body Composition and Skin State in Overweight and Obese Class I Postmenopausal Women
The use of dietary amino acids has been explored for therapeutic and safety intervention of obesity and obesity-induced dysfunction.
- Conditions
- Amino Acid, Body Weight Changes, Skin Manifestations, Obesity
- Trial name
- NCT04701463
- Testing
- L-glutamine, L-arginine and calcium beta-hydroxy-beta-methylbutyrate
- Where
- Italy
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Azienda di Servizi alla Persona di Pavia
Homocystinuria
Betaine METABOLISM OF PATIENTS With Homocystinuria
Oral treatment with betaine is conventionally used for patients with inherited homocystinurias. These conditions include a first group of patients with a cystathionine β-synthase (CBS) deficiency and a second group of patients…
- Trial name
- HCTBETAINE (NCT02404337)
- Testing
- Betaine
- Where
- France
- Volunteers
- 12 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris