A prospective study for the investigation of the validity of the cutoff values established for the HIRA-TAN system.

A prospective study for the investigation of the validity of the cutoff values established for the HIRA-TAN system. - HIRA-TAN cutoff study.

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000001118

Enrollment

300

Registered

2008-04-09

Start date

2008-04-01

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

Pneumonia(acute)

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who fulfill the criteria 1-3 and provided sputum that fulfill the criteria 4. 1. Patients who have newly developed infiltrations in the chest imaging study and have clinical symptoms that support pneumonia. 2. Bacterial culture of the sputum is submitted. 3. Urine antigen test for P. pneumoniae is submitted. 4. Sputum that is isolated within 48 hours of the development of symptoms of pneumonia and is classified into Miller-Hones M2, P1, P2, or P3 is provided.

Exclusion criteria

Exclusion criteria: Patients that do not fulfill the inclusion criteria.

Design outcomes

Primary

Measure	Time frame
Validity of the cutoff value for P. pneumoniae.	—

Secondary

Measure	Time frame
Validity of the cutoff values for H. influenzae, P. aeruginosa, and M. catarrhalis. Overall performance of HIRA-TAN system to identify the causative pathogen.	—

Countries

Japan

Contacts

Public ContactTakashi Hirama

Saitama Medical University Department of Respiratory Medicine

mycobacteriumtuberculosis@hotmail.com049-276-1319

Outcome results