Clinical trials: Oral Microbiota
Bowel Habits, Gut Microbiomes
Study on Changes in Gut Microbiota, Inflammatory Factors, and Bowel Habits Following Oral Administration of Recombinant B-subunit/Whole Cell Cholera Vaccine in a Community Population
This randomized, placebo-controlled clinical trial aims to investigate the effects of oral cholera vaccine administration on three aspects of gut health in healthy adult community members aged 18 years and older: (1) the…
- Conditions
- Bowel Habits, Gut Microbiomes, Inflamatory Markers
- Trial name
- NCT07873346
- Testing
- Receive recombinant B-subunit/whole-cell cholera vaccine
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Zhejiang Provincial Center for Disease Control and Prevention
Healthy, Stress-related Problem
The Effect of Probiotic Supplementation on Mental Health in Healthy Volunteers
Probiotics are "live microorganisms which when administered in adequate amounts confer a health benefit on the host". Accumulating evidence indicates their effect in mental health restoration.
- Conditions
- Healthy, Stress-related Problem, Depression, Anxiety
- Trial name
- ProBeMent (NCT06391216)
- Testing
- Lactobacillus helveticus R0052 and Bifidobacterium longum R0175
- Where
- Poland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Medical University of Lodz
Malnutrition Pregnancy, Malnutrition in Children
Early Life Malnutrition, Environmental Enteric Dysfunction and Microbiome Trajectories
Malnutrition in women of reproductive age remains a public health concern in Sub-Saharan Africa (SSA). Malnutrition during pregnancy affects foetal growth with a tendency of the exposed infants to also develop it.
- Conditions
- Malnutrition Pregnancy, Malnutrition in Children, Malnutrition (Calorie), Environmental Enteric Dysfunction
- Trial name
- UZBCS-2 (NCT07195006)
- Testing
- Malnutrition in pregnancy as exposure, Poor WASH living conditions as exposure
- Where
- Zimbabwe
- Volunteers
- 368 people, healthy volunteers welcome
- Sponsor
- University of Zimbabwe
Dental Caries
Does Administration of Probiotics During Infancy Increase the Caries Risk of a Child
Aim: to examine caries occurrence in children who ten years ago received a mixture of probiotics during infancy. Hypothesis: the administration of probiotics during infancy has no effect on future dental health.
- Trial name
- NCT01424852
- Testing
- Probiotics in infant milk formula
- Where
- Finland
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Turku
Juvenile Idiopathic Arthritis
Oral Health, Saliva Bacteria, and Disease Activity in Children With JIA: A Cross-Sectional Study.
The goal of this observational study is to learn about the relationship between disease activity and oral health status in children with juvenile idiopathic arthritis (JIA).
- Trial name
- JIA (NCT07799831)
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Shanghai Jiao Tong University School of Medicine
Cardiovascular Diseases, Diabetes
Białystok PLUS - Polish Longitudinal University Study
The main goal of the study is to provide a unique multidimensional picture of the health of the population with simultaneous optimal standards of sampling, processing and storing of data and biomaterial that will allow…
- Conditions
- Cardiovascular Diseases, Diabetes, Neuro-Degenerative Disease, Obesity
- Trial name
- Bialystok+ (NCT03197363)
- Testing
- Discovering novel risk factors.
- Where
- Poland
- Volunteers
- 8,320 people
- Sponsor
- Medical University of Bialystok
Hepatic Encephalopathy, Dysbiosis
Fecal Microbiota Transplantation by Oral Capsules for Hepatic Encephalopathy Treatment
This interventional study aims to evaluate the safety and efficacy of oral capsule fecal microbiota transplantation (FMT) for treating hepatic encephalopathy refractory to conventional rifaximin and lactulose therapy in patients…
- Trial name
- NCT06368895
- Testing
- Fecal microbiota transplantation delivery through colonoscopy, Fecal microbiota transplantation delivery through oral capsules
- Where
- Italy
- Volunteers
- 33 people
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Anterior Crossbite
Evaluation of the Effect of Labio-Lingual Spring Hawley and Clear Aligners on Periodontal Health and Salivary Parameters
Objective: The aim of our study was to determine the effect of two different types of removable appliances on periodontal health, dental plaque colonization, as well as saliva, pH, flow rate, and buffering capacity of the…
- Trial name
- NCT06858033
- Testing
- Clear aligner, Labiolingual spring hawley
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people
- Sponsor
- Ozge Gungor
Probiotic, Ocular Surface Disease
Efficacy and Safety of Oral Probiotics on Ocular Symptoms and Gut Microbiome of Children with Vernal Keratoconjunctivitis
The primary goal of this study is to determine the effects of oral probiotics on the severity of ocular symptoms and the alterations of the gut microbiome of children (4-18 years old) with vernal keratoconjunctivitis.
- Conditions
- Probiotic, Ocular Surface Disease, Ocular Diseases, Ocular Dryness
- Trial name
- NCT06793514
- Testing
- Probiotic
- Volunteers
- 32 people
- Sponsor
- Mohsen Pourazizi
Oral Cavity Squamous Cell Carcinoma
Nisin in Oral Cavity Squamous Cell Carcinoma (OCSCC)
This is a study of oral nisin administration in patients with OSCC who are undergoing complete surgical resection surgery with or without adjuvant radiation/chemoradiation as part of their routine care at the University of…
- Trial name
- NCT06097468
- Testing
- NisinZ® P, Surgery (non-interventional, standard of care)
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- University of California, San Francisco
Oral Health, Menopause
Womens Health Screening and the Oral Microbiome
The overall aims of this project are to undertake a women's health screening clinic on oral health and systemic health, linking the oral microbiome to hormonal status (menopause); The follow quantitative and qualitative markers…
- Conditions
- Oral Health, Menopause, Gum Disease, Mouthwash
- Trial name
- NCT07859761
- Testing
- Listerine mouthrinse
- Where
- United Kingdom
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University of Plymouth
Head and Neck Cancer
Effect of N-Acetyl Cysteine (NAC) on the Oral Microbiome
This is a Phase II treatment, randomized 3:1 ratio, open label clinical trial to study the effect of short duration administration of N-acetyl cysteine on oral microbiome and on mucositis caused by concurrent chemotherapy and…
- Trial name
- NCT03982537
- Testing
- N-Acetyl-L-Cysteine dietary supplement, Chemotherapy and Radiation
- Sponsor
- Wake Forest University Health Sciences
Gastrointestinal Cancer, Pancreatic Cancer
Intestinal Microbiome, Oral Microbiome, and Whole Blood Transcriptome Analyses in Gastrointestinal Malignancies
The primary objective of this prospective observational study is to characterize the gut and oral microbiome as well as the whole blood transcriptome in gastrointestinal cancer patients and correlate these findings with cancer…
- Conditions
- Gastrointestinal Cancer, Pancreatic Cancer, Esophageal Cancer, Gastric Cancer
- Trial name
- NCT05462314
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- Viome
Periodontitis
Salivary Bacterial Profiles in Relation to Periodontal Treatment
The purpose of the present investigation is to record and compare bacterial compositions in subgingival plaque samples and saliva samples in subjects receiving periodontal treatment.
- Trial name
- NCT02913248
- Testing
- Conventional periodontal treatment
- Where
- Denmark
- Volunteers
- 30 people
- Sponsor
- University of Copenhagen
Clostridioides Difficile Infection Recurrence, FMT
FMT Capsules for rCDI
Double blind RCT study of tretment of recurrent Clostridioides difficile infection by FMT capsules.
- Trial name
- FMT CAP CDI (NCT07458984)
- Testing
- Healthy donor stool
- Where
- Finland
- Volunteers
- 76 people
- Sponsor
- Helsinki University Central Hospital
Healthy, Periodontitis
Oral and Gut Microbiota Changes During Long-term Fasting in Humans
The aim of this longitudinal trial is to investigate the effects of a 10±3-day fasting period in 30 subjects. Changes in the oral and gut microbiota, halitosis, as well as inflammatory and antioxidative parameters and biomarkers…
- Trial name
- OralFast (NCT05449249)
- Testing
- Long-term fasting
- Where
- Germany
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Buchinger Wilhelmi Development & Holding GmbH
Malnutrition, End Stage Renal Disease
Oral Nutritional Supplement on Nutritional and Functional Status, and Biomarkers in Malnourished Hemodialysis Patients.
Malnutrition in hemodialysis patients is frequent and it is associated with a reduction in muscular mass, strength, functional capacity and quality of life, with an increment in inflammatory and oxidative markers, and with a…
- Trial name
- RENACARE (NCT03924089)
- Testing
- Oral nutritional supplement with probiotics, Oral nutritional supplement without probiotics, Dietary recommendations
- Where
- 3 sites in Spain
- Volunteers
- 54 people
- Sponsor
- Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud
Barrett Esophagus
Longitudinal Oral Microbiome Sampling for BE
This is a longitudinal cohort study to assess the impact of repeated sampling of an oral microbiome signature for Barrett's esophagus (BE).
- Trial name
- NCT05133102
- Testing
- Sample collection
- Where
- 2 sites in United States
- Volunteers
- 275 people, healthy volunteers welcome
- Sponsor
- Columbia University
Gingivitis
A Study to Evaluate the Effect of a Test (Sodium Bicarbonate) Toothpaste on the Oral Microbiome
The aim of this 12-week clinical study is to evaluate the effect of a toothpaste containing sodium bicarbonate over time on the oral microbiome and to explore its effect in comparison to a regular fluoride toothpaste in…
- Trial name
- NCT07273539
- Testing
- Sodium Bicarbonate Toothpaste, Sodium Fluoride Toothpaste
- Where
- United Kingdom
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- HALEON
Basic Science, Intervention Studies
Comprehensive Multi-omics Characterization and Implications of Non-Pharmaceutical Dental Hygiene Product in a Randomized Controlled Large Population Study.
The goals of this clinical study are: 1. Survey approximately 600 persons between the ages of 18-80 regarding their medical history \& oral hygiene habits, diet \& exercise habits, and emotional \& physical stressors to…
- Conditions
- Basic Science, Intervention Studies, Biomarker Discovery
- Trial name
- NCT07451782
- Testing
- Oral Lozenges (Tradename pHossident), Water additive (Tradename Protektin)
- Where
- United States
- Volunteers
- 595 people, healthy volunteers welcome
- Sponsor
- Delta Dental of Minnesota Foundation