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Increasing number of Aspergillus fumigatus sensitized asthma or COPD patients, National survey

Increasing number of Aspergillus fumigatus sensitized asthma or COPD patients, National survey - Increasing number of Aspergillus fumigatus sensitized asthma or COPD patients, National survey

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000057550
Enrollment
1500
Registered
2025-04-08
Start date
2025-02-14
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, COPD

Interventions

None listed

Sponsors

National Hospital Organization Sagamihara National Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: The diagnostic criteria for asthma and COPD shall be patients clinically diagnosed by a respiratory physician, with or without complications. Written consent for the study will be obtained for patients. Patients who have undergone the specified IgE test within one year of consent and the results are obtained within the study period will be enrolled. However, some laboratory results (blood tests, lung function, etc.) within one year prior to the start of the study may also be substituted.

Exclusion criteria

Exclusion criteria: Patients with insufficient diagnostic evidence of asthma (e.g., coughing asthma, cough and breathlessness but poor type 2 inflammation and pulmonary hypofunction). COPD with uncertain diagnosis. Patients receiving steroids or immunosuppressive drugs other than for anticancer or asthma/COPD treatment purposes. Patients who cannot give written consent. Patients who cannot give consent for IgE blood collection.

Design outcomes

Primary

MeasureTime frame
Positivity of serum Aspergillus and its specific allergen component, Asp f 1 specific IgE antibodies, etc. Regional differences. Aspergillus, and other allergen positivity in relation to background of asthma or COPD patients, espeicially lung function, severity of disease, and inhaled steroid medications.

Countries

Japan

Contacts

Public ContactSekiya Kiyoshi

National Hospital Organization Sagamihara National Hospital Department of Allergy and Respiratory Medicine

sekiya.kiyoshi.fe@mail.hosp.go.jp042-742-8311

Outcome results

None listed

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