Clinical trials: Gut Microbiome Dysbiosis
Dysbiosis, Cardiometabolic Health Indicators
Pulse Education and Children
This parallel-arm, randomized controlled trial will evaluate the effectiveness of a 6-week pulse-focused nutrition intervention in school-aged children (6-13 years).
- Conditions
- Dysbiosis, Cardiometabolic Health Indicators, Education on Feeding and Health Status, Gut Motility
- Trial name
- NCT07648446
- Testing
- Education Only, Education + Pulse Provision, Cooking Class
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Florida State University
Diminished Ovarian Reserve
Characterization of Gut and Tongue Coating Microbiota in Patients With Diminished Ovarian Reserve
The goal of this observational study is to investigate the distinct tongue manifestation characteristics in patients with diminished ovarian reserve (DOR) compared to healthy individuals, and to clarify the features of tongue…
- Trial name
- CGTCMPDOR (NCT07124260)
- Testing
- gut microbiota, tongue coating microbiota, tongue picture
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University
Microscopic Colitis, Colorectal Cancer
Mucosa Adherent Intestinal Microbiome in Microscopic Colitis and Colorectal Cancer
Microscopic colitis (MC) is an inflammatory bowel disease characterized by chronic non-bloody watery diarrhoea and a macroscopically normal colonic mucosa upon endoscopic exploration (colonoscopy).
- Conditions
- Microscopic Colitis, Colorectal Cancer, Colon Adenoma
- Trial name
- CMBACT (NCT06172647)
- Testing
- Colonoscopy
- Where
- Spain
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Hospital Mutua de Terrassa
Gastrointestinal Disorder, Functional
PHAGE Study: Bacteriophages as Novel Prebiotics
The PHAGE study is designed to determine if a commercial prebiotic product can change the composition of bacteria in the gut for improved intestinal health.
- Trial name
- NCT03269617
- Testing
- Bacteriophage mixture
- Volunteers
- 43 people, healthy volunteers welcome
- Sponsor
- Colorado State University
Microbiome Dysbiosis, Gut Health
Colon-delivered Riboflavin and Gut Microbiota Composition
Recent studies suggest B-vitamins such as riboflavin to possess prebiotic-like effects. However, there is still a lack of understanding of the exact host health benefits vs. conventional systemically available vitamin forms.
- Trial name
- CONCOL (NCT07093463)
- Testing
- Colon-delivered riboflavin, Conventional riboflavin, Microcrystalline Cellulose
- Where
- Germany
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- dsm-firmenich Switzerland AG
Anorexia Nervosa, Dysbiosis
Alteration of Symbiosis Intestinal Microbiota on Patients With Anorexia Nervosa
The purpose of this study will be to study the association between the level of psychic symptomatic of anorexia nervosa (AN) (intensity of food restriction, symptoms of anxiety and depression) and alteration of host environment…
- Conditions
- Anorexia Nervosa, Dysbiosis, Anxious Depression
- Trial name
- INT-METAVOSA (NCT05632497)
- Testing
- Stool and blood samples
- Where
- France
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Irritable Bowel Syndrome, Dysbiosis
Fecal Microbiota Transplantation and ACHIM for Manipulating Gut Microbiota in IBS Patients
The double-blinded placebo-controlled study compares the effect of fecal microbiota transplantation vs. Anaerobically Cultivated Human Intestinal Microbiota (ACHIM) or placebo (own feces) on manipulating the gut microbiota in…
- Trial name
- NCT05088434
- Testing
- Anaerobically Cultivated Human Intestinal Microbiota (ACHIM), Donor fecal microbiota transplantation
- Where
- Norway
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Haukeland University Hospital
Arterial Stiffness, Blood Pressure
Prebiotic Effects of California Grapes on Gut Health and Cardiometabolic Health in Overweight Men and Women
The goal of this clinical trial is to assess the impact of table grape consumption on gut microbiome, intestinal permeability, systemic inflammation, and vascular function in healthy overweight men and women aged 45-70 years.
- Conditions
- Arterial Stiffness, Blood Pressure, Dysbiosis, Inflammation
- Trial name
- CALGRAM (NCT06544954)
- Testing
- Freeze-dried grape powder
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Microbiome
Effect of a Probiotic or Postbiotic on Gut Microbiome During Antibiotic Treatment
This study assesses the effects of a probiotic or postbiotic on gut microbiome during antibiotic treatment.
- Trial name
- POTATO-2 (NCT07594860)
- Testing
- Probiotic, Postbiotic
- Where
- Greece
- Volunteers
- 126 people, healthy volunteers welcome
- Sponsor
- The Archer-Daniels-Midland Company
Irritable Bowel Syndrome, Crohn Disease
Evaluation of the SIMBA Capsule for Small Intestinal Dysbiosis
The SIMBA Capsule is a small, single-use, ingestible capsule that allows for the non-invasive sampling of small bowel contents using purely mechanical means.
- Conditions
- Irritable Bowel Syndrome, Crohn Disease, Celiac Disease, Ulcerative Colitis
- Trial name
- NCT05633706
- Testing
- fluid biopsy capsule
- Where
- Canada
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Nimble Science Ltd.
Overweight and Obesity, Insulin Resistance
Carbohydrate-induced Resilience of the Gut Microbiome After Antibiotics Use
The gut microbiome is a complex ecosystem with a wide range of functions, and it is thought that it can influence multiple processes in the human body.
- Conditions
- Overweight and Obesity, Insulin Resistance, Dysbiosis
- Trial name
- CARMA (NCT04561284)
- Testing
- Indigestible fiber (classified)
- Where
- Netherlands
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Mental Disorder
Microbiome and the Gut-Brain Axis
This research study will examine the relationship interconnecting medical body health, mental health, and microbes of the digestive tract in persons living with serious mental illnesses,as compared to persons without such…
- Trial name
- NCT02693327
- Testing
- Biological Sample, Blood Sample
- Where
- 2 sites in United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- University of Florida
Infant, Newborn, Immunity
The Bloom Infant Probiotic (BIP) Study
The goal of this clinical trial is to investigate whether administering a probiotic (Infloran®) to infants who received antibiotics in the first 28 days of life can restore or enhance their immune response to routine vaccines.
- Conditions
- Infant, Newborn, Immunity, Immunisation, Antibiotic Treatment
- Trial name
- BIP (NCT07189390)
- Testing
- Probiotic
- Where
- 2 sites in Australia
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- South Australian Health and Medical Research Institute
Gut Dysbiosis for TMAO Production From Red Meat Consumption
Development of Microbial Metabolism Gene Tests for Facilitating Precision Health and Preventive Medicine-Evaluation of TMAO Production in Human Body From High-carnitine Diet by Fecal Gbu Gene Testing
The risk of cardiovascular diseases from red meat consumption varies among individuals due to variations in gut microbiota. L-carnitine in red meat can be converted to Trimethylamine n-oxide (TMAO) in the body by certain…
- Trial name
- NCT07322575
- Testing
- Beef
- Where
- Taiwan
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Impaired Glucose Tolerance
Effects of Artificial Sweeteners on Gut Microbiota and Glucose Metabolism
The Objectives of this study is to determine the effect(s) of daily non-caloric artificial sweetener (NAS) consumption (sucralose or aspartame) on the composition of the bacteria and also to determine the changes in glucose…
- Trial name
- NCT02569762
- Testing
- Sucralose-Aspartame, Aspartame-Sucralose
- Where
- Canada
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
Dysbiosis
Ex-vivo Evaluation of the Effect of 2 Probiotic Solutions (Lactibiane ATB and Lactibiane Enfant) and 5 Classes of Drugs on the Intestinal Microbiota
The objective is to test ex-vivo the effects of two probiotic solutions (Lactibiane ATB and Lactibiane Enfant) and five classes of drugs (antibiotic, proton pump inhibitor, non-steroidal anti-inflammatory, anxiolytic and…
- Trial name
- EPROMED (NCT06114303)
- Testing
- Stool sampling
- Where
- France
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Larena SAS
Dysbacteriosis
Longitudinal Study of the Human Intestinal Microbiome
The purpose of this study is to identify the human intestinal microbiota (microbes that live inside and on human bodies) in healthy adults over a 6-month period and to study the effect of an antibiotic on the intestinal…
- Trial name
- NCT00832286
- Testing
- Ciprofloxacin
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
IBS - Irritable Bowel Syndrome, Post Infection Syndrome
Gut Microbiome in Patients With Post-infectious Irritable Bowel Syndrome
Observational, multicenter, prospective study aimed at characterizing the gut microbiome in patients with post-infectious irritable bowel syndrome (PI-IBS) using whole genome sequencing (WGS).
- Trial name
- MicroRestore (NCT07517029)
- Where
- Italy
- Volunteers
- 315 people, healthy volunteers welcome
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Colorectal Cancer; Gut Microbiota Dysbiosis
Intestinal Flora Differences Between Colorectal Cancer Patients and Healthy Individuals
This observational case-control study aims to compare the composition of intestinal microbiota between colorectal cancer (CRC) patients and healthy individuals.
- Trial name
- NCT06875648
- Testing
- Not applicable (observational study)
- Where
- China
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Hansung University
Dysbiosis, Gastroesophageal Reflux Disease (GERD)
Effect of Bioflor on Gut Microbiota in Proton-Pump Inhibitor Users
Proton-pump inhibitors (PPIs) are widely used to treat acid-related stomach problems, such as heartburn and acid reflux. Long-term use of PPIs has been linked to changes in the gut bacteria and fungi (called the gut microbiota)…
- Trial name
- NCT07852676
- Testing
- Saccharomyces Boulardii 250 MG, Proton Pump Inhibitors (PPI)
- Where
- 3 sites in South Korea
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Seoul National University Hospital