NCT06699537

Lacticaseibacillus Rhamnosus LRa05 for Alleviating Allergic Rhinitis in Children

Effectiveness of Lacticaseibacillus Rhamnosus LRa05 in Alleviating Allergic Rhinitis and Its Impact on Gut Microbiota: A Randomized, Double-Blind, Placebo-Controlled Trial

• Status: Not Yet Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 70 (estimated)
• Sponsor: Wecare Probiotics Co., Ltd. · Industry
• Sex: All
• Age: 4 Years – 12 Years
• Healthy volunteers: Accepted

Summary

The clinical trial aims to investigate the efficacy of Lactobacillus rhamnosus LRa05 in alleviating allergic rhinitis and its impact on the gut microbiota among 70 pediatric participants aged 4-12. The primary objective is to validate the improvement in allergic rhinitis symptoms following an 8-week intervention with Lactobacillus rhamnosus LRa05. Participants were instructed to consume the probiotic powder daily for approximately 8 weeks. At baseline, week 4, and week 8 endpoints, assessments of nasal symptoms, quality of life questionnaires, and stool samples for microbiota analysis were conducted on the participants, and blood samples were collected for immune-related factor testing.

Detailed description

Research has indicated that allergic rhinitis (AR) is associated with a decrease in the diversity of the gut microbiota, particularly in children, potentially linking to the development of allergic diseases. Preclinical studies have shown that supplementation with Lactobacillus rhamnosus LRa05 can regulate immune responses, inhibit inflammatory factors, and the predictive functions of the gut microbiota suggest an increase in gene abundance within pathways related to immune modulation, anti-inflammatory effects, and maintenance of gut barrier integrity. To ascertain the effectiveness of the probiotic strain LRa05, a randomized, double-blind, placebo-controlled trial was conducted by the investigators to evaluate and gather data on alterations in the gut microbiota and allergic rhinitis symptoms among pediatric participants. The trial spanned over 8 weeks, with washout periods incorporated at the commencement and conclusion. Throughout the study, participants ingested Lactobacillus rhamnosus LRa05 and were subjected to a series of health examinations and assessments, including nasal symptom scores, quality of life questionnaires, and stool sample collections for microbiota analysis, as well as blood samples for immune-related factor testing. The primary objective was to validate the improvement in allergic rhinitis symptoms and the modulation of the gut microbiota following the intervention with LRa05.

Conditions

• Allergic Rhinitis (AR)

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	probiotic product	During the study, subjects take one sachet of Lactobacillus rhamnosus LRa05 daily. Evaluation is conducted by monitoring the subjects' nasal symptoms and gut microbiota before and after the intervention.
DIETARY_SUPPLEMENT	Maltodextrin	During the study, subjects in the control group take one sachet of maltodextrin daily with 3.0g. Evaluation is conducted by monitoring the subjects' nasal symptoms and gut microbiota before and after the 8-week trial.

Timeline

• Start date: 2024-12-01
• Primary completion: 2025-11-01
• Completion: 2025-12-01
• First posted: 2024-11-21
• Last updated: 2024-11-21

Locations

1 site across 1 country: China