Clinical trials: Intestinal Absorption
Obesity, Gut Microbiota Modulation
ESAN III - Energy Sensing in Depression
The purpose of this study is to assess the effects of carotenoids from natural carrot juice on the immune system. Therefore, the study aims to distinguish the effects of natural juices that are rich in phytonutrients such as…
- Conditions
- Obesity, Gut Microbiota Modulation, Immunomodulation
- Trial name
- NCT06985381
- Testing
- Carotenoid-rich juice, Control
- Where
- Austria
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
Protein Malabsorption
Protein Digestion and Amino Acid Absorption in the Aging Gastrointestinal Tract
Rationale: Worldwide, the aging population is increasing. Aging is associated with loss of independence and increased risk of co-morbidity.
- Trial name
- AgingGut (NCT06553794)
- Testing
- Gastroscopy with duodenal mucosal tissue biopsies
- Where
- Netherlands
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Infant Allergy, Infant Gut Health
Study on the Impact of Different Feeding Methods on Allergy Prevention and Digestive Absorption in Infants and Young Children
Based on a real-world research paradigm, this study aims to evaluate the performance of infants fed via different methods-specifically goat milk formula, control formula, and breastfeeding-regarding allergy prevention and protein…
- Conditions
- Infant Allergy, Infant Gut Health, Infant Respiratory Diseases, Infant Feeding Scale
- Trial name
- NCT07886437
- Testing
- Observation, biological sample collection: stool
- Where
- China
- Volunteers
- 696 people, healthy volunteers welcome
- Sponsor
- Tsinghua University
Renin-Angiotensin Aldosterone System (RAS)
Human Intestinal Amino Acid Absorption and the Role of a Local RAS
This study is to find out what role a local intestinal RAS (renin angiotensin system) plays in the context of amino acid absorption in the human intestinal tract and how this RAS and thus the amino acid absorption is influenced…
- Trial name
- NCT04524494
- Testing
- biopsy of intestinal tissue, blood draw, urine collection
- Where
- 2 sites in Switzerland
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University Children's Hospital Basel
Crohn's Disease, Short Bowel Syndrome
Citrulline: A Plasmatic Marker to Assess and Monitor Small Bowel Crohn's Disease Patients
Citrulline is an amino acid produced in the intestine and in the liver, but the liver does not contribute significantly to circulating citrulline concentrations.
- Conditions
- Crohn's Disease, Short Bowel Syndrome, Malabsorption Syndromes, Celiac Disease
- Trial name
- NCT00138879
- Where
- United Kingdom
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- St Mark's Hospital Foundation
Drug-Drug Interaction (DDI), Intestinal Absorption
A Study to Assess the Effects of Multiple Doses of Fidaxomicin on a Single Dose of Rosuvastatin in Healthy Male Subjects
This study will assess the effect of multiple doses of fidaxomicin on the single dose pharmacokinetics of rosuvastatin in healthy male subjects.
- Conditions
- Drug-Drug Interaction (DDI), Intestinal Absorption, Healthy Subjects, Pharmacokinetics of Rosuvastatin
- Trial name
- NCT02083627
- Testing
- rosuvastatin, fidaxomicin
- Where
- Germany
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Astellas Pharma Europe B.V.
Calcium Deficiency, Vitamin D Deficiency
Human Pharmacology Trial of Calcium-vitamin D3 Tablet in Healthy Participants
The purpose of this study is to demonstrate that the intestinal absorption of calcium from a newly developed calcium carbonate-vitamin D3 chewable tablet formulation increases the amount of calcium excreted in urine and decreases…
- Trial name
- Osteopro (NCT01639222)
- Testing
- Calcium 500 mg and Vitamin D3 800 IU, Low calcium meals
- Where
- Germany
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Takeda
Cholesterol
A Research Study to Evaluate MK0653 (Ezetimibe) and Simvastatin, Given Together and Alone, on Intestinal Absorption of Cholesterol (0653-050)(COMPLETED)
To determine the effect of ezetimibe and simvastatin given together, and ezetimibe and simvastatin given alone on intestinal cholesterol absorption.
- Trial name
- NCT00652301
- Testing
- ezetimibe, simvastatin
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Organon and Co
Intestinal Absorption
Comparative A1 vs A2 Formula and Breast Feeding on Alimentation and Gastrointestinal Digestion for the Infant
This pilot study primarily aimed to compare effects of breast feeding, A1 versus A2®cow milk based formula on alimentation and gastrointestinal digestion.
- Trial name
- NCT03081936
- Testing
- Oral consumption of Nutricia Aptamil Stage 1 formula, Oral consumption of a2® Platinum Stage 1 formula, Oral consumption of breast milk
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- a2 Milk Company Ltd.
Iron Absorption, Gut Bacteria
Effect of Inulin on Iron Absorption in Humans
Prebiotics are non-digestible food ingredients that beneficially affect the host by selectively stimulating the growth or activity of species in the colon that can improve host health.
- Trial name
- NCT01483092
- Testing
- inulin, maltodextrin
- Where
- Switzerland
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Asthma
Genotype Stratified Pharmacokinetic Study of Montelukast
Leukotriene receptor antagonists (LTRAs) are frequently prescribed to reduce the symptoms associated with asthma. Singulair (montelukast), manufactured by Merck, is a popular LTRA, however its effectiveness varies greatly between…
- Trial name
- GSPOM (NCT01086527)
- Testing
- 10 mg tablet of montelukast (Singulair)
- Where
- United States
- Volunteers
- 2 people, healthy volunteers welcome
- Sponsor
- Nemours Children's Clinic
Chronic Kidney Failure
Chronic Kidney Disease in Relation to Alterations in Protein and Amino Acid Metabolism and Function
Weight loss commonly occurs in patients with chronic kidney disease (CKD), negatively influencing their quality of life, treatment response and survival.
- Trial name
- NCT01890811
- Testing
- Boost High Protein
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Texas A&M University
Cystic Fibrosis
Development Of An Innovative Panel of Methods To Measure Intestinal Macronutrient Digestion, Absorption, and Function
Malnutrition is a significant problem in children and adults with Cystic fibrosis (CF). An impaired intestinal digestion and absorption capacity is one of the main factors responsible for the malnutrition in CF.
- Trial name
- NCT01494909
- Testing
- Ensure plus
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Texas A&M University
Healthy Volunteers
Effect of Calcium 500 mg and Vitamin D3 1000 IU Chewable Tablet on Intestinal Calcium Absorption
The purpose of this study is to demonstrate that the intestinal absorption of calcium from a novel calcium carbonate-vitamin D3 chewable tablet formulation (calcium 500 milligrams (mg) and vitamin D3 1000 International Units…
- Trial name
- NCT02338713
- Testing
- Calcichew D3, Noncarbonated Water
- Where
- France
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Takeda
Chronic Heart Failure, Chronic Obstructive Pulmonary Disorder
Nutritional and Functional Changes in Heart Failure and COPD
Weight loss commonly occurs in patients with chronic heart failure (CHF) and chronic obstructive pulmonary disorder (COPD), negatively influencing their quality of life, treatment response and survival.
- Trial name
- NCT01787682
- Testing
- BOOST High Protein
- Where
- United States
- Volunteers
- 99 people, healthy volunteers welcome
- Sponsor
- Texas A&M University
Systemic Availability, Intestinal Absorption
The Systemic Concentration of Short-Chain Fatty Acids After Delivery in the Small and Large Intestine of Healthy Volunteers
The goal of this crossover study is to evaluate the systemic availability of short-chain fatty acids (SCFA) that are either administered in the small intestine or the colon in healthy volunteers.
- Conditions
- Systemic Availability, Intestinal Absorption, Metabolism, Short-chain Fatty Acids
- Trial name
- Sistine (NCT06082726)
- Testing
- SCFA
- Where
- Belgium
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- KU Leuven
Kidney Stone, Kidney Calculi
Gut Oxalate Absorption in Calcium Oxalate Stone Disease
The goal of this clinical trial study is to test if patients with idiopathic calcium oxalate kidney stones have an increased absorption of dietary oxalate, which would lead to increased urinary excretion of oxalate.
- Conditions
- Kidney Stone, Kidney Calculi, Urolithiasis, Urolithiasis, Calcium Oxalate
- Trial name
- NCT06331546
- Testing
- Low-oxalate diet, High-oxalate diet, soluble oxalate gut absorption test
- Where
- 2 sites in United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Chronic Kidney Disease Mineral and Bone Disorder
Phosphorus Absorption in Healthy Adults and in Patients With Moderate Chronic Kidney Disease
Chronic kidney disease (CKD) affects approximately 26 million Americans with many more at risk for disease development. Elevated serum phosphorus (P) and related abnormalities in P homeostasis due to progressive loss of kidney…
- Trial name
- NCT03108222
- Testing
- Phosphorus Absorption Test
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Purdue University
Obesity
Energy Metabolism and Nutrient Absorption in Lean and Obese Individuals
This study will examine whether there are differences in energy (calories) losses in stool and urine between lean and obese people.
- Trial name
- NCT00414063
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Milk Intolerance, Milk Hypersensitivity
Goat vs. Cow Milk Digestive Tolerance
The objective of this study is to assess to what extent goat's milk is better tolerated than cow's milk among individuals who report being intolerant to cow's milk, and, if so, to understand the underlying factors.
- Conditions
- Milk Intolerance, Milk Hypersensitivity, Cow Milk Protein Sensitivity
- Trial name
- DIGIGOAT (NCT07239856)
- Testing
- Cow milk, Goat Milk
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement