Clinical trials: Gut Microbiomes
Healthy Nutrition
Dietary Impact on Intestinal Sulfate Metabolism
This is a 5-week crossover pilot study of 15 highly motivated healthy volunteers who will consume two 7-day intervention diets: 1) a diet low in sulfur-containing amino acids (Low-S diet), emphasizing plant-based foods and fat…
- Trial name
- NCT05333900
- Testing
- Plant-Based Diet then animal-based diet, Animal-based diet then plant-based diet
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Inflammation
Effects of Adding Chickpeas to the American Diet (Long Term Study)
This prospective study will assess the effects of adding legumes, especially chick peas, to the diet of healthy adults on the commensal bacteria from feces of human subjects and resulting self-reported GI symptoms as well as…
- Trial name
- NCT02375373
- Testing
- Observational Chickpea Diet
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Florida
Urea Cycle Disorder
Manipulating the Gut Microbiome Study
The objective is to determine if acetohydroxamic acid (AHA) can prevent hydrolysis of urea by inhibiting the bacterial urease of gut flora of both healthy control adults as well as adults with urea cycle disorders
- Trial name
- NCT03181828
- Testing
- Acetohydroxamic Acid Oral Tablet, No treatment
- Where
- United States
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- Nicholas Ah Mew
Suspected or Confirmed COVID-19
NBT-NM108 as an Early Treatment for Suspected or Confirmed Symptomatic COVID-19 Patients
This open-label, randomized, and controlled clinical trial aims to determine the feasibility and effectiveness of using NBT-NM108, a novel botanical-based fixed-combination drug, to modulate the gut microbiota and treat…
- Trial name
- COVGUT20 (NCT04540406)
- Testing
- NBT-NM108, Usual Care Only
- Where
- United States
- Volunteers
- 42 people
- Sponsor
- Notitia Biotechnologies Company
Depressive Symptoms
Berries, Bugs, and the Blues
This study aims to investigate the impact of daily freeze-dried blueberry powder consumption on the gut microbiota, fecal short chain fatty acids, and depressive symptom severity in 40older, sedentary adults with depressive…
- Trial name
- NCT05817383
- Testing
- Freeze-dried Blueberry Powder
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Hebrew SeniorLife
Infectious Disease of Digestive Tract
Autologous Fecal Therapy
Ten healthy volunteers will be recruited to receive either an autologous stool transplant or a saline enema to determine if autologous fecal microbiota therapy will be able to rapidly, and safely, restore a patient's fecal…
- Trial name
- NCT02046525
- Testing
- Autologous fecal microbiota therapy
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Type 2 Diabetes
Study Of Drinks With Artificial Sweeteners in People With Type 2 Diabetes
Diet beverages sweetened with artificial sweeteners occupy a unique category in the food environment as they are a source of intensely sweet taste with no calories.
- Trial name
- SODAS (NCT03944616)
- Testing
- Diet Beverage, Water
- Where
- 2 sites in United States
- Volunteers
- 181 people
- Sponsor
- University of California, Irvine
Iron-deficiency
Prebiotic GOS and Lactoferrin With Iron Supplements
The ultimate goal of this research is to develop a means to safely administer iron supplements to infants in settings with a high infection burden.
- Trial name
- NCT03866837
- Testing
- Galacto-oligosaccharides, Bovine lactoferrin, Multiple micronutrient powders with 5 mg iron
- Where
- 2 sites in Kenya, Switzerland
- Volunteers
- 288 people, healthy volunteers welcome
- Sponsor
- Columbia University
Gut Inflammation, Hypertension
Gut Organoid and Microbiome Interactions in Hypertension
The study compared basic properties of gut epithelia of hypertensive and normotensive reference subjects. The study determined if there are fundamental differences in the gut epithelium in hypertension compared to normotension.
- Trial name
- NCT04497727
- Testing
- Gene Expression
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- University of Florida
Obesity
Modulation of the Intestinal Microbiome by a High Protein Diet
The objective of this study is to test and determine whether a high protein diet induces weight loss by modulating the composition and function of the intestinal microbiome in obesity.
- Trial name
- HPD (NCT04812964)
- Testing
- Protein powder supplement, standard dosage based on 0.5 gram protein per pound of subject's lean body mass, Protein powder supplement, High Level Protein, based on 1 gram of protein per pound of lean body mass: 25% protein and 45% carbohydrate
- Where
- United States
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Autoimmune Diseases, Relapsing Multiple Sclerosis
Fecal Microbial Transplantation in Relapsing Multiple Sclerosis Patients
The proposed randomized, open label, with treat as usual control group (standard treatment or any disease modifying drugs), crossover phase II study will be conducted in 40 patients (n=20 per group) with the relapsing forms of…
- Trial name
- NCT03183869
- Testing
- Fecal microbiota
- Where
- Canada
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Intestinal Microbiota and Barrier Function
Use of a Novel Synbiotic to Change Human Gut Bacteria and Improve Health in Obese Adults
This study evaluates the effect of a dietary supplement to improve gut health. The participants will take one of six dietary treatments for three weeks, and the gut bacteria and the gut intestinal barrier will be assessed to…
- Trial name
- NCT02355210
- Testing
- Bifidobacteria adolescentis BD1, Bifidobacteria animalis subsp. lactis BB-12, Bifidobacteria adolescentis BD1 and galactooligosaccharide
- Where
- United States
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- Rush University Medical Center
Infant Development, Gut Microbiome
INF108F in Infants With Food Protein Induced Proctocolitis
Single-center, randomized, double-blind, placebo-controlled trail evaluating INF108F in breastfed infants with FPIAP
- Conditions
- Infant Development, Gut Microbiome, Food Protein Induced Allergic Proctocolitis
- Trial name
- RESTORE (NCT05793112)
- Testing
- INF108F probiotic
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Rheumatoid Arthritis, Psoriatic Arthritis
Role of Oral and Intestinal Microbiota in Rheumatoid Arthritis (RA)
Rheumatoid arthritis (RA) is an inflammatory form of arthritis that causes joint pain and damage. RA attacks the lining of the joints (synovium), causing swelling that can result in aching and throbbing, and eventually deformity.
- Conditions
- Rheumatoid Arthritis, Psoriatic Arthritis, Periodontal Disease
- Trial name
- NCT01198509
- Testing
- doxycycline, vancomycin
- Where
- 2 sites in United States
- Volunteers
- 178 people, healthy volunteers welcome
- Sponsor
- NYU Langone Health
Enterocolitis, Necrotizing, Bacteremia
Antibiotic "Dysbiosis" in Preterm Infants
Prolonged antibiotic use in preterm neonates has significant consequences on the developing intestinal microbiome, metabolome and host response, predisposing the neonate to various major morbidities, including necrotizing…
- Conditions
- Enterocolitis, Necrotizing, Bacteremia, Bronchopulmonary Dysplasia, Intraventricular Hemorrhage
- Trial name
- NCT02784821
- Testing
- Antibiotic, Gastric fluid, Breast milk
- Where
- United States
- Volunteers
- 98 people
- Sponsor
- University of Florida
Influenza
Systems Biology of Flu Vaccine in Healthy Adults With and Without the Use of Antibiotics
The purpose of the study is to better understand how the use of antibiotics changes micro-organisms in the intestines. The change to micro-organisms in the intestines may change the body's vaccine immune response and alter the…
- Trial name
- VAX-002 (NCT02154061)
- Testing
- IIV Flu Vaccine, Metronidazole, Neomycin
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Emory University
Primary Sclerosing Cholangitis, Biliary Atresia
Gastrointestinal Microbiota in Primary Sclerosing Cholangitis and Biliary Atresia With Vancomycin
The goals of the proposed work are two fold: Firstly, to see if the antibiotic vancomycin may be used for the early treatment of Biliary Atresia (BA) and Primary Sclerosing Cholangitis (PSC).
- Trial name
- PSC (NCT01322386)
- Testing
- Vancomycin
- Volunteers
- 32 people
- Sponsor
- Stanford University
ESRD, Hyperkalemia
The Effects of Patiromer on Serum Potassium Level and Gut Microbiome of ESRD Patients With Hyperkalemia
The Effects of Patiromer on Serum Potassium Level and Gut Microbiome of ESRD Patients With Hyperkalemia (potassium greater than 5 milliequivalents per liter) is a non-randomized, crossover study.
- Conditions
- ESRD, Hyperkalemia, End Stage Renal Disease
- Trial name
- NCT03326583
- Testing
- Patiromer
- Where
- United States
- Volunteers
- 27 people
- Sponsor
- Dominic Raj
Healthy Volunteers
Effects of S. Boulardii and Amoxicillin/Clavulanate on Gut Microbiota
The purpose of this study is to compare and contrast the effects of the probiotic Saccharomyces boulardii, the antibiotic amoxicillin/clavulanate and the combination on the gut microbiota of healthy volunteers.
- Trial name
- NCT01473368
- Testing
- Saccharomyces boulardii, Amoxicillin Clavulanate
- Where
- United States
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- Beth Israel Deaconess Medical Center
Hypertension
Gut Butyrate and Blood Pressure in African Americans
African Americans have the greatest burden of hypertension. Recently, the short-chain fatty acid, butyrate, has been reported to have some effect on blood pressure.
- Trial name
- NCT04415333
- Testing
- Sodium Butyrate 5 mmol, Sodium Butyrate 80 mmol
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill