Efficacy of Probiotics (LiveSpo Navax) in Preventing Respiratory Diseases in Children

Summary

Acute respiratory infections are common diseases worldwide with the highest incidence and mortality rates, especially among children. Currently, the prevention of acute respiratory infections in children still faces certain limitations. Although there is a vaccine available for influenza, there are no vaccines yet for RSV and adenovirus in children, and influenza vaccination needs to be repeated annually to achieve optimal effectiveness. Therefore, maintaining respiratory and throat hygiene is essential for both treatment and prevention, ensuring respiratory health for children and reducing the risk of bacterial co-infections. In recent years, preventive strategies for respiratory inflammation have garnered increasing attention, with probiotics being shown to have the potential to support treatment and prevention \& reduce the risk of recurrent respiratory infections, thus decreasing reliance on antibiotics. Here, the investigators propose that direct nasal spraying of probiotics may be safe and effective in preventing respiratory diseases. The aim of the study is to evaluate the effectiveness of two types of nasal- praying Bacillus probiotics including LiveSpo Navax (1 billion/mL x 30 mL B. subtilis and B. clausii) and LiveSpo Navax Kid (0.6 billion/mL x 30 mL B. subtilis and B. clausii) in preventing respiratory diseases. Study Population: The sample size is 600. Description of Sites: The study is conducted at preschools in Son Tay Province, Hanoi, Vietnam. Description of Study Intervention: A total of 600 eligible children are randomly divided into three groups (n = 200/group each). Children in the Control group received 0.9% NaCl physiological saline twice daily (morning and afternoon), with 2 sprays in each nostril and 2 sprays in the throat each time (totally 6 sprays each time), continuously for four weeks. Children in the Probiotic 1 group receive LiveSpo Navax product, and children in the Probiotic 2 group receive LiveSpo Navax Kid, with the same dosage and frequency as the Control group. Study Duration: 12 months.

Timeline

Start

2024-01-02

Primary completion

2024-05-15

Completion

2024-10-23

Publications

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