Clinical trials: Amino Acid Metabolism
Phenylketonuria
Effect of L-carnitine Supplementation on Phenylalanine and Brain-derived Neurotrophic Factor Levels in Infants and Children With Phenylketonuria
Effect of L-carnitine supplementation on phenylalanine and brain-derived neurotrophic factor levels in infants and children with phenylketonuria L-carnitine is mainly obtained from foods such as red meat and milk that are limited…
- Trial name
- NCT06901323
- Testing
- L-carnitine
- Where
- Egypt
- Volunteers
- 176 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Plasma Amino Acid Appearance and Disappearance, Postprandial Metabolic Events
Effects of Pea Proteins With Different Degrees of Processing on Postprandial Metabolism in Healthy Adults
The aim of this study is to investigate the postprandial metabolic responses to plant-based protein ingredients of different degrees of processing (pea protein concentrate, isolate, and extrudate) and in comparison to whey…
- Trial name
- NCT06155656
- Testing
- Pea protein concentrate, Pea protein isolate, Pea protein extrudate
- Where
- Germany
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Bonn
Protein/Amino Acid Metabolism, Indicator Amino Acid Oxidation Method
Influence of Habitual Protein Intake on AA Tracer Oxidation
Protein is an essential nutrient that one's diet to maintain important bodily functions and to recover from exercise. Currently, the Indicator Amino Acid Oxidation method (IAAO) has been used to determine protein requirements in…
- Trial name
- HPI (NCT03845569)
- Testing
- Dietary protein intake reduction, Three day Controlled Diet
- Where
- Canada
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- University of Toronto
Old Age
Modulation of Muscle Protein Metabolism by Essential Amino Acids
The investigators plan to explore the ability of amino acids, the building blocks of proteins in our bodies and in the food we eat, to stimulate muscles to grow and stay strong.
- Trial name
- Aj1B (NCT01890369)
- Testing
- 15g Mixed Essential Amino Acids, 3g Leucine, 15g Mixed Essential Amino Acid REFEED
- Where
- United Kingdom
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
Healthy Volunteers
Evaluation of the Bioavailability of Amino Acids From Purple Bacteria
This interventional clinical study aims to evaluate the bioavailability of amino acids derived from purple bacteria in healthy adults.
- Trial name
- PROTEBOOST_1 (NCT07613983)
- Testing
- Purple Bacteria-Enriched Dairy Product, Protein-Enriched Dairy Product
- Where
- Belgium
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Université Catholique de Louvain
Vitamin B6 Deficiency
Vitamin B6 Dependence of One-Carbon Metabolism
Marginal vitamin B6 deficiency, which occurs commonly worldwide, leads to a cellular deficiency of the coenzyme pyridoxal phosphate (PLP).
- Trial name
- NCT00877812
- Testing
- Arm 1 glycine and leucine, Arm 2 Intervention of Serine and methionine infusion
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University of Florida
Healthy
Metabolic Availability of Methionine and Lysine From Rice, Wheat, Chickpea and Lentil in Adult Men
The research study is being done so we can determine the quality of the protein present in Rice, Wheat, Chickpeas and Lentils. Amino acids are the building blocks of protein and protein quality is determined by the amount of…
- Trial name
- NCT03674736
- Testing
- Dietary Intakes
- Where
- Canada
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- The Hospital for Sick Children
Metabolism and Nutrition Disorder
Amino Acid Metabolism in Fed Surgical Critically Ill Patients
Introduction Sarcopenia is defined as progressive generalized loss of skeletal muscle mass, strength and function. Sarcopenia due to lack of physical activity is a known phenomenon and is usually observed as a normal part of…
- Trial name
- NCT03451968
- Testing
- amino acid tracer injection for metabolism analysis
- Where
- Israel
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Rabin Medical Center
Healthy Volunteers, Propionic Acidemia
A First in Human, Dose Escalation Study to Evaluate the Safety and Tolerability of BBP-671 in Healthy Volunteers and Patients With Propionic Acidemia or Methylmalonic Acidemia
The purpose of this study is to assess the safety, tolerability, PK and PD of BBP-671 in healthy volunteers and patients with Propionic Acidemia or Methylmalonic Acidemia.
- Conditions
- Healthy Volunteers, Propionic Acidemia, Methylmalonic Acidemia, Organic Acidemia
- Trial name
- NCT04836494
- Testing
- BBP-671
- Where
- 3 sites in United States
- Volunteers
- 79 people, healthy volunteers welcome
- Sponsor
- CoA Therapeutics, Inc., a BridgeBio company
Military Operational Stress Reaction, Malnutrition (Calorie)
Physiological Response to Protein and Energy-enhanced Food Products During Winter Military Training
Soldiers commonly lose muscle mass during training and combat operations that produce large energy deficits (i.e., calories burned > calories consumed).
- Conditions
- Military Operational Stress Reaction, Malnutrition (Calorie), Weight Loss, Muscle Wasting
- Trial name
- NCT05210205
- Testing
- EAA, Energy Dense, Control
- Where
- Norway
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- United States Army Research Institute of Environmental Medicine
Sarcopenia
Characterizing the Incretin Effect of Amino Acids and Defining GLP-1 Role on Skeletal Muscle
This study has two protocols the aims of which are: 1. To identify age-related effects of AA on incretin secretion and whether and to what extent AA exhibit a true incretin effect (gut- mediated increases in plasma insulin) in…
- Trial name
- Incretin (NCT02370745)
- Testing
- GLP-1, Insulin Actrapid, Oral amino acids
- Where
- United Kingdom
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
Urea Cycle Disorders
Study to Evaluate 13 C Isotope Ratio Measurement for Urea Cycle Capacity Assessment
In this short-term study a method for the evaluation of the metabolic competency of the urea cycle in vivo will be assessed. In order to monitor the efficacy of new treatment options for patients with urea cycle disorders and to…
- Trial name
- NCT01002469
- Testing
- sodium [1-13C] acetate
- Where
- Germany
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Cytonet GmbH & Co. KG
Healthy
Metabolic Availability of Lysine From Barley in Young Adult Men
Protein is the key determinant of growth and bodily functions. The quality of food proteins depend on their amino acid content and the amount of amino acids used by the body to make proteins.
- Trial name
- NCT03907020
- Testing
- Barley
- Where
- Canada
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- The Hospital for Sick Children
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)
Homocystinuria
Proof of Concept Creatine Supplementation for Homocystinuria Study
Homocystinuria is a rare and inherited metabolic disorder, people with this condition don't have an enzyme needed to break down an amino acid called homocysteine.
- Trial name
- NCT06495567
- Testing
- Creatine, Dietary methionine tracer and protein intake
- Where
- Canada
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Phenylketonurias
PKU Skin Stripping
PURPOSE OF STUDY: To determine if a non-invasive skin stripping technique can be used to detect individuals with phenylalanine abnormalities, and to monitor dietary and/or drug effects over time.
- Trial name
- NCT04368624
- Testing
- Skin Tape, Blood Draw
- Where
- United States
- Volunteers
- 86 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Hypertriglyceridemia
Effects of Amino Acids on Regional Lipid Metabolism
Elevated fat level in blood is a risk factor for coronary heart disease, a major cause of death in America. The overall goal of this project is to test a novel treatment using nutrient (amino acid) supplementation against this…
- Trial name
- NCT01150188
- Testing
- Amino acids
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- University of Arkansas
Hypothyroidism
Metabolic Changes in Hypothyroid Patients
Hypothyroidism is a frequent condition in danish women, but often overlooked. Along with fatigue one of the main symptoms is weight gain as a result to significantly decreased energy expenditure.
- Trial name
- NCT00524238
- Testing
- L-thyroxine
- Where
- Denmark
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
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
Phenylketonuria (PKU)
The Psychosocial Functioning of Adults With Phenylketonuria.
Current recommendations are to maintain Phe levels < 360 µmol/L throughout life (US consensus) or < 600 µmol/L from the age of 12 (European consensus).
- Trial name
- CoMet-PCU (NCT07406009)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Central Hospital, Nancy, France