The causes of chronic and prolonged cough in Japan.

The causes of chronic and prolonged cough in Japan. - The causes of chronic and prolonged cough.

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000040484

Enrollment

500

Registered

2021-02-01

Start date

2020-08-01

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

Prolonged and chronic cough

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) ages over 16 years old 2) prolonged cough (dulation of cough 3-8 weeks) and chronic cough (dulation of cough over 8 weeks) with normal finding of chest Xp.

Exclusion criteria

Exclusion criteria: patients that each physisian considers inadequet to this study

Design outcomes

Primary

Measure	Time frame
Prevalence of the causes of cough in the real world	—

Secondary

Measure	Time frame
Treatment of cough in the real world	—

Countries

Japan

Contacts

Public ContactYoshihisa Ishiura

Kansai Medical University Medical Center Division of Respiratory Medicine

ishiuray@takii.kmu.ac.jp0669921001

Outcome results