Significance of exhaled NO as a diagnostic marker of persistent cough

Significance of exhaled NO as a diagnostic marker of persistent cough - Exhaled NO and persistent cough

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000001019

Enrollment

150

Registered

2008-02-08

Start date

2008-02-01

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

persistent cough

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: patients with dry cough sustaining for more than 3 weeks, without apparent cause of cough evident from history, physical examination, chest X-ray, or spirometry

Exclusion criteria

Exclusion criteria: 1. hypersensitivity to budesonide 2. woman who is pregnant or during breast-feeding 3. on ACE inhibitor 4. patients with asthma which is active or under treatment 5. patients who the doctors consider inappropriate

Design outcomes

Primary

Measure	Time frame
Ratio of patients whose VAS score of cough symptoms improve more than 50% after treatment with inhaled corticosteroid	—

Countries

Japan

Contacts

Public ContactKoichiro Asano

Keio University School of Medicine Division of Pulmonary Medicine

ko-asano@qa2.so-net.ne.jp

Outcome results