A survey research for predicting patients of bronchial asthma with high-sensitivity against air pollution materials including particle matter (PM 2.5) and establishing a healthcare system to prevent exacerbation

A survey research for predicting patients of bronchial asthma with high-sensitivity against air pollution materials including particle matter (PM 2.5) and establishing a healthcare system to prevent exacerbation - Air pollution sensitivity and health care in patients with bronchial asthma

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000017653

Enrollment

240

Registered

2015-06-01

Start date

2015-06-01

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

Bronchial asthma

Interventions

Standard drug therapy with healthcare administration followed by standard drug therapy Standard drug therapy followed by standard drug therapy with healthcare administration

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with bronchial asthma Patients with respiratory symptom and allergy but do not show typical phenotype of bronchial asthma Patient with lung diseases (e.g. diffuse lung diseases, COPD, lung cancer, etc.)

Exclusion criteria

Exclusion criteria: Patients with apparent infection Patients with severe heart disease, liver disease, or renal disease Patients whom attending physician advised not to entry

Design outcomes

Primary

Measure	Time frame
Quality of life	—

Secondary

Measure	Time frame
Biomarkers (blood, exhaled breath condensate and sputum) Antioxidation-associated gene polymorphism Respiratory function	—

Countries

Japan

Contacts

Public ContactMasato Watanabe

Kyorin University School of Medicine Department of Respiratory Medicine

masato@ks.kyorin-u.ac.jp+81-422-47-5511

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026