Phenotype specific identification of prediction factors for exacerbation of asthma and analysis of long-term prognosis -2014 cohort-

Phenotype specific identification of prediction factors for exacerbation of asthma and analysis of long-term prognosis -2014 cohort- - Phenotype specific prognosis and prediction factor for exacerbation of asthma -2014 cohort-

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000044099

Enrollment

372

Registered

2021-05-03

Start date

2021-05-06

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

Asthma

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients participated in 2014 cohort, still followed-up by participating facilities, and treated by inhaled corticosteroids are eligible.

Exclusion criteria

Exclusion criteria: Patients treated by unapproved drugs for clinical studies. Patients judged as inappropriate for participating to the study by investigators.

Design outcomes

Primary

Measure	Time frame
Time course of annual exacerbation frequency stratified by phenotypes of asthma	—

Secondary

Measure	Time frame
1. Time course of ACT score, pulmonary function, biomarkers (blood eosinophil counts, total IgE, FeNO) stratified by phenotypes of asthma 2. Prognostic factors for exacerbation frequency and annual decline in FEV1 3. Improvement in exacerbation frequency, ACT sore, and pulmonary function after introduction of biologics in patients treated by antibody therapies	—

Countries

Japan

Contacts

Public ContactHIroyuki Nagase

Teikyo University School of Medicine Division of Respiratory Medicine and Allergology, Department of Medicine

nagaseh@med.teikyo-u.ac.jp03-3964-1211

Outcome results