Identification of Fungi Antigen in Occupational and Residential Hypersensitivity Pneumonitis in Northern Nagano Prefecture Region

Identification of Fungi Antigen in Occupational and Residential Hypersensitivity Pneumonitis in Northern Nagano Prefecture Region - Identification of Fungi Antigen in Occupational and Residential Hypersensitivity Pneumonitis in the Northern Nagano Prefecture Region

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000061370

Enrollment

Registered

2026-04-30

Start date

2026-05-01

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

Hypersensitivity Pneumonitis

Interventions

During routine blood sampling (venous blood collection), 10 mL of blood for serum biochemical analysis (one 10-mL collection tube) will be obtained. The presence of specific antibodies in patient seru

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients diagnosed with hypersensitivity pneumonitis at Hokushin General Hospital between March 1, 2026 and March 31, 2029, who do not meet any of the following exclusion criteria, will be enrolled in this study.

Exclusion criteria

Exclusion criteria: Individuals under 20 years of age Patients deemed unsuitable for participation in the study by the principal investigator or study investigators

Design outcomes

Primary

Measure	Time frame
In patients with occupational- and residential-related hypersensitivity pneumonitis in whom environmental fungi are suspected to be the causative antigens, fungi will be isolated and identified from workplace and residential exposure environments, and the presence of serum-specific antibodies against the identified fungi will be evaluated.	—

Countries

Japan

Contacts

Public ContactTSUYOSHI SHIRAI

Hokushin General Hospital Department of Pulmonary Medicine

tshipulm@hokushin-hosp.jp0269222151

Outcome results

None listed

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