A clinical trial for comparing nitric oxide values measured by two fractional exhaled nitric oxide analysers in patients

Clinical Trial of Fractional Exhaled Nitric Oxide analysers

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR1900026569

Enrollment

Unknown

Registered

2019-10-14

Start date

2019-07-15

Completion date

Unknown

Last updated

2019-10-21

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

Conditions

Bronchial asthma

Interventions

Gold Standard:NIOX VERO

Index test:Ruibreath

Eligibility

Sex/Gender

All

Age

4 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Patients need to be tested for FeNO; 2. Subjects must sign an informed consent indicating that they understand the purpose of the study and the necessary procedures for the study, and volunteer to participate in the study.

Exclusion criteria

Exclusion criteria: (1) People with unconsciousness or cognitive impairment; (2) severe oral deformity or facial paralysis; (3) Patients with severe oral infections; (4) Patients with mechanical ventilation; (5) Patients with pneumothorax or massive pleural effusion; (6) Other patients who can not cooperate with the examination correctly; (7) For safety reasons or patients'interests, clinicians believe that patients should not participate in any of the circumstances of this study.

Design outcomes

Primary

Measure	Time frame
Fractional Exhaled Nitric Oxide;Kappa;SEN, SPE, ACC, AUC of ROC;	—

Countries

China

Contacts

Public ContactLuYong

Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital Affiliated to Capital Medical University

luyong8764@sina.com+86 13611169391

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026