Endobronchial lung biopsy with an ultrathin bronchoscope using Switch Oblique Method (SOM) for the diagnosis of peripheral pulmonary lesions

Endobronchial lung biopsy with an ultrathin bronchoscope using Switch Oblique Method (SOM) for the diagnosis of peripheral pulmonary lesions - Endobronchial lung biopsy with an ultrathin bronchoscope using Switch Oblique Method (SOM) for the diagnosis of peripheral pulmonary lesions

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000015444

Enrollment

Registered

2014-10-16

Start date

2014-05-08

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

peripheral lung leisions doubting a malignancy

Interventions

bronchoscopy with switch oblique method

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1.Small peripheral pulmonary lesions of 10 mm or more and 20 mm or less deemed, but not determined, as lung cancer 2.Not visible by bronchoscopy 3.The case which is due to perform an additional positive inspection and medical treatment when diagnosis does not stick by bronchoscope inspection 4.Written informed consent

Exclusion criteria

Exclusion criteria: 1.Visible by bronchoscopy 2.Lesions deemed as benign diseases on chest CT

Design outcomes

Primary

Measure	Time frame
the accuracy of Switch Oblique Method as navigation system	—

Secondary

Measure	Time frame
the diagnostic yield and safety of ultrathin bronchoscope using Switch Oblique Method (SOM). complications of bronchoscopy. inspection time	—

Countries

Japan

Contacts

Public ContactTakako Inoue

osaka medical center for cancer and cardiovascular diseases Department of Thoracic Oncology

okuyama-ta@mc.pref.osaka.jp06-6972-1181

Outcome results

None listed

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