Catechin Containing Mask for the Prevention of Influenza Infection

University of Shizuoka

Status: Completed

Conditions: Influenza Infection

Treatments: Dietary Supplement: tea catechin extracts

Study type: Interventional

Funder types: Other

Identifiers

NCT00812448

20-24

CT2009001

Details and patient eligibility

About

The purpose of this study is to evaluate the effects of catechin extracts containing mask on prevention of influenza infection.

Full description

Catechins are the major components of tea flavonoids and are reported to possess physiological activities such as antiviral effects. Recent in-vitro experimental studies have revealed that tea catechin extracts possess the effects on the prevention of influenza infection. However, a limited number of studies have been conducted on the clinical effects. Based on these backgrounds, we designed a prospective randomized controlled study to evaluate the effects of tea catechin extracts containing mask on the prevention of influenza infection.

Enrollment: 180 patients

Sex: All

Ages: 20 to 85 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Possible to wearing mask for three months
• Possible to fill out a questionnaire personally
• Obtained written informed consent before participation

Exclusion criteria

• Possessing some infectious diseases in need of therapy
• Possessing tea or catechin allergy
• diagnosed as inadequate for other reasons to participate the study by principal investigator

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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180 participants in 1 patient group

tea catechin extracts containing mask

Experimental group

Description:

wearing the tea catechin extracts containing mask

Treatment:

Dietary Supplement: tea catechin extracts