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Feasibility study of ultrathin bronchoscopic cryobiopsy

Feasibility study of cryobiopsy with an ultrathin bronchoscope for small peripheral pulmonary lesions

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs042200021
Enrollment
50
Registered
2020-06-24
Start date
2020-06-24
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

Solitary pulmonary lesions Solitary pulmonary lesions

Interventions

Ultrathin bronchoscopic cryobiopsy using a 1.1-mm cryoprobe
bronchoscopy

Sponsors

Oki Masahide
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients with peripheral pulmonary lesion <= 30 mm in size reqiring biopsy for management decision 2. 20 years old <= 3. Informed consent

Exclusion criteria

Exclusion criteria: 1. Serious concomitant medical illness 2. Lesion located within the inner second ellipse from the hilum on chest CT 3. Patients who need to undergo a bronchoscopic procedure for a nontarget lesion in the same setting 4. Patients who have evident disadvantages for cryobiopsy 5. Patients who were previously enrolled in this trial 6. Patients who underwent/will undergo bronchoscopy between the time of obtaining the consent and the study procedure 7. Pregnant woman 8. Bleeding tendency 9. Other clinical difficulties judged by investigators

Design outcomes

Primary

MeasureTime frame
Feasibility of cryobiopsy

Secondary

MeasureTime frame
Safety Specific pathological findings Time of procedures Size of specimens

Contacts

Public ContactMasahide Oki

National Hospital Organization Nagoya Medical Center

masahideo@gmail.com460-0001

Outcome results

None listed

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