A study to evaluate changes in exhaled nitric oxide (NO) before and after treatment in patients with chronic nasopharyngitis

A prospective observational study evaluating changes in oral and nasal exhaled nitric oxide (NO) before and after epipharyngeal abrasive therapy (EAT) in patients with chronic nasopharyngitis - EAT-NO Study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000061725

Enrollment

Registered

2026-06-01

Start date

2026-06-01

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

Chronic nasopharyngitis

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients diagnosed with chronic nasopharyngitis Age 15 years or older Patients initiating epipharyngeal abrasive therapy (EAT) Written informed consent obtained

Exclusion criteria

Exclusion criteria: Patients with acute upper respiratory infection Patients with acute exacerbation of asthma Patients unable to perform exhaled NO measurement

Design outcomes

Primary

Measure	Time frame
Change in oral exhaled nitric oxide (NO) before and after epipharyngeal abrasive therapy (EAT) in patients with chronic nasopharyngitis (difference between baseline and after 12 sessions of EAT)	—

Secondary

Measure	Time frame
Changes in nasal exhaled nitric oxide (NO) before and after epipharyngeal abrasive therapy (EAT) Association between changes in oral and nasal exhaled nitric oxide (NO) and clinical parameters (endoscopic findings score and symptom visual analog scale [VAS])	—

Countries

Japan

Contacts

Public ContactManabu Mogitate

Mogitate Medical Corporation Mogitate ENT Clinic

mogitateentjp@m08.itscom.net0448654187

Outcome results