Influence of Probiotics on Atopy, Immunological Responses and Gut Microflora - Follow-up to 5 Years

Asthma Clinical Trial

Official title: A Follow-up Study to 5 Years of a Randomized, Double-blinded, Placebo-controlled Study on the Influence of Probiotics on Atopy, Immunological Responses and Gut Microflora

Status Completed

Clinical Trial Summary

The investigators had conducted a double-blind, randomized placebo-controlled clinical trial studying the effects of 6 months probiotics supplementation from birth on allergic disease and sensitization up to 2 years of age. This follow-up study will extend a further 3 years to 5 years of age for assessing the longer term beneficial effects of this form of probiotics intervention on the incidence of allergic disease and sensitization at 5 years of age.

Clinical Trial Description

Probiotics are helpful bacteria of healthy gut and have shown potential in reducing allergy. A double-blind, randomized placebo-controlled clinical trial studying the effects of 6 months probiotics supplementation from birth on allergic disease and sensitization up to 2 years of age had been conducted. This study aims to assess the longer term beneficial effects of this form of intervention on the incidence of allergic disease and sensitization at 5 years of age by extending the follow-up period.

All children (from original cohort of 253) who completed the initial 2-year visit has been invited to participate. They will be evaluated with monthly phone calls and yearly clinic visits. Allergic sensitization will be assessed with skin prick tests to a panel of allergens.

This project will provide insights into the role of early supplementation of probiotics on the development of the immune system and its effect on allergy. The additional follow-up period is critical for the evaluation of respiratory allergies in the form of clinical asthma, allergic rhinitis and sensitization to inhalant allergens, which tend to develop after 2 years of age. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Caregiver), Primary Purpose: Prevention

Related Conditions & MeSH terms

• Allergic Rhinitis
• Asthma
• Eczema

• NCT number: NCT00365469
• Study type: Interventional
• Source: National University Hospital, Singapore
• Status: Completed
• Phase: Phase 2
• Start date: May 2006
• Completion date: September 2011