Daily use of masks for preventing common cold

Daily use of masks for preventing common cold - Mask Study

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000000981

Enrollment

200

Registered

2008-01-14

Start date

2007-11-01

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

common cold

Interventions

daily wearing surgical masks no mask wearing

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Works in an outpatient clinic of a hospital, older than 18 years old.

Exclusion criteria

Exclusion criteria: Chronic respiratory illness, immunodeficiency state (including medication-induced), chronic allergic or vasomotor rhinitis, taking antibiotics, current smoker as defined by having smoked a tobacco product within 1 month of recruitment, unable or unwilling to follow study protocol.

Design outcomes

Primary

Measure	Time frame
Prevalence rate of common cold judged by Jackson Criteria	—

Secondary

Measure	Time frame
1.Outpatient clinical visit 2.Duration of hospitalization 3.Laboratory tests,radiological tests, and drugs 4.Use of over-the-counter 5.Use of CAM treatments 6.Complication of treatments 7.Productivity loss and time lost from work	—

Countries

Japan

Contacts

Public ContactSachiko Ohde

St. Luke's Life Science Institute Clinical Practice and Evaluation Center

saohde@luke.or.jp03-5550-2426

Outcome results

None listed

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