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Clinical Research Directory

Browse clinical research sites, groups, and studies.

3 clinical studies listed.

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Probiotics Supplement

Tundra lists 3 Probiotics Supplement clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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RECRUITING

NCT07600008

Development of a Preparation for Supportive Supplementation of Probiotics in Patients With Reflux

A two-arm, double-blind, randomized, placebo-controlled study investigating the efficacy of a probiotic preparation developed as supportive supplementation of probiotics in patients with reflux. The objective of this trial is to evaluate the effect of the probiotic dietary supplement on the diversity and composition of the gut microbiome in patients diagnosed with GERD who are on PPI therapy. The study will also monitor changes in the oral microbiome and the impact of probiotic supplementation on patient quality of life and GERD symptoms. Patients will take the probiotic preparation, 2 tablets twice daily (morning before meals and evening after meals). The experimental phase will last 6 weeks. Patients in the control arm will receive placebo. Supplementation will be discontinued if adverse effects occur. Oral and rectal swabs will be taken before and after administration of the preparation. Patients will monitor their symptoms using a questionnaire.

Gender: All

Ages: 40 Years - 55 Years

Updated: 2026-05-20

Reflux Disease
Microbiome
Probiotics Supplement
NOT YET RECRUITING

NCT07457242

Probiotic Research: Open-label Functional Intervention and Longitudinal Evaluation in Healthy Adults

This study is a pre-post, open-label cohort study designed to investigate how a food-grade probiotic supplement affects biological measurements and wellbeing in healthy adults. Participants will take one capsule daily for either 1 month or 6 months. During the study, participants will complete online cognitive tasks and provide blood and stool samples collected during home visits by trained staff. The samples will be analysed to explore changes in gut bacteria and other biological markers. This study aims to understand whether the supplement is well tolerated and whether measurable biological changes occur. The study does not involve any experimental drugs or invasive procedures beyond blood sampling and stool collection, and participants will not be asked to change any current prescribed medications or treatments; with eligibility exclusions applying for recent antibiotics or immunosuppressants. The supplement is being studied for research purposes only and is not intended to diagnose, treat, or prevent disease. Participants will be invited to participate in a follow-up visit to assess long-term effects.

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-09

Cognition
Multiomics
Microbiome Analysis
+8
ACTIVE NOT RECRUITING

NCT06745245

Effect of Oral Consumption of a Symbiotic Gelatin on the Presence of Gastrointestinal Symptoms and Quality of Life in People With Chronic Kidney Disease

In patients with chronic kidney disease (CKD) there is a high prevalence of gastrointestinal disorders and negative changes in the microbiota and assimilation of nutrients, which is associated with an increased risk of morbidity and mortality.

Gender: All

Ages: 18 Years - 90 Years

Updated: 2024-12-20

Chronic Kidney Disease(CKD)
Dysbiosis Symptoms Linked to Pathology
Probiotics Supplement