Catechin Gargling for Influenza Infection

Not Applicable

Completed

• Conditions: Influenza Infection

• Registration Number: NCT00239213
• Lead Sponsor: University of Shizuoka

Brief Summary

The purpose of this study is to clarify the preventive effects of catechin gargling on the influenza infection.

Detailed Description

In-vitro experimental studies have revealed that tea catechin extracts induce preventive effects on influenza infection. However, few studies have been conducted on the effects of tea gargling on influenza infection, and the clinical evidence is unclear. Also there have been no studies reported on the gargling effects with tea catechin extracts on the prevention of influenza infection.

Study Timeline

• Study First Submitted: 2005-10-13
• Study First Submitted QC: 2005-10-13
• Study First Posted: 2005-10-14
• Study Start: 2005-11
• Study Completion: 2006-04
• Status Verified: 2006-10
• Last Update Submitted: 2006-10-28
• Last Update Posted: 2006-10-31

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 400

Inclusion Criteria

• healthy volunteers
• aged 20 to 65 years old
• obtained written informed concent before participation
• inoculated with influenza vaccine before entering the study

Exclusion Criteria

• other gargling except water during the study
• possessing tea allergy

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Incidence rates of influenza infection during the study

Secondary Outcome Measures

Name	Time	Method
severity of symptoms including complications and hospitalization

Trial Locations

Locations (3)

Seirei Hamamatsu General Hospital; 🇯🇵 Hamamatsu, Shizuoka, Japan

Shizuoka General Hospial; 🇯🇵 Shizuoka, Japan

White Cross Nursing Home; 🇯🇵 Higashi Murayama, Tokyo, Japan