Skip to content

Effects of catechin-derivative-treated masks on the prevention of influenza infection: an exploratory randomized study

Effects of catechin-derivative-treated masks on the prevention of influenza infection: an exploratory randomized study - Effects of catechin-derivative-treated masks on the prevention of influenza infection

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000024362
Enrollment
250
Registered
2016-10-14
Start date
2016-11-15
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Influenza infection

Interventions

Catechin-derivative-treated mask/60 days Non-catechin-derivative-treated mask/60 days

Sponsors

University of Shizuoka
Lead Sponsor
White Cross Nursing Home Osaka University
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1)Written informed consent obtained before participation 2)Aged 20 years old or older 3)Opportunity to interact with influenza infected subjects 4)Willing and able to wear masks during the study period 5)Willing and able to fill out questionnaires

Exclusion criteria

Exclusion criteria: 1)Green tea allergy 2)Allergy to mask material 3)Severe immune disease 4)Chronic systemic infectious disease 5)History of influenza infection within the previous 6 months and influenza infection within 24 hours after participation 6)Subjects diagnosed by a physician inappropriate to participate in the study

Design outcomes

Primary

MeasureTime frame
Incidence rate of influenza-like illness during the study period

Secondary

MeasureTime frame
1)Incidence rate of laboratory-confirmed influenza A or B virus infection 2)Incidence rate of laboratory-confirmed influenza infection or influenza-like illness 3)Incidence rate of acute upper respiratory tract infection 4)Mask-wearing rate 5)Incidence of adverse device effect and defect

Countries

Japan

Contacts

Public ContactHiroshi Yamada

University of Shizuoka School of Pharmaceutical Sciences

hyamada@u-shizuoka-ken.ac.jp+81-54-264-5762

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026