An observational study on diagnostic yield and the number of tumor cells of ultrathin bronchoscopy and thin bronchoscopy for peripheral lung lesions

An observational study on diagnostic yield and the number of tumor cells of ultrathin bronchoscopy and thin bronchoscopy for peripheral lung lesions - An observational study on diagnostic yield and the number of tumor cells of ultrathin bronchoscopy and thin bronchoscopy for peripheral lung lesions

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000044676

Enrollment

Registered

2021-06-27

Start date

2021-06-27

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 lesions

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) patients who are 20 years old or older 2) patients whose medical information can be obtained from the medical record 3) patients who have undergone ultrathin bronchoscopy or thin bronchoscopy for peripheral lung lesions

Exclusion criteria

Exclusion criteria: patients who have requested not to participate in this study based on published information

Design outcomes

Primary

Measure	Time frame
The number of tumor cells of the specimens with the highest tumor content in non-small cell lung cancer cases	—

Secondary

Measure	Time frame
1) diagnosis yield 2) histopathological diagnosis 3) number of biopsies 4) number of biopsies with first diagnosis 5) Oncomine analysis success rate 6) percentage of PD-L1 evaluable 7) number of tumor cells per biopsy 8) percentage of tumor cells	—

Countries

Japan

Contacts

Public ContactAtsuhiko Yatani

Kobe University Graduate School of Medicine Division of Respiratory Medicine, Department of Internal Medicine

ayatani@med.kobe-u.ac.jp+81-78-382-5660

Outcome results