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A study of safety and efficacy of bronchoscope biopsy with a Cryoprobe.

A study of safety and efficacy of bronchoscope biopsy with a Cryoprobe. - A study of safety and efficacy of bronchoscope biopsy with a Cryoprobe.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000034546
Enrollment
150
Registered
2018-10-18
Start date
2018-10-20
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

Lung tumor, Diffuse interstitial lung disease

Interventions

Bronchoscope biopsy with a Cryoprobe

Sponsors

International University of Health and Welfare, Mita hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) In chest CT, the following diseases have been already diagnosed or is suspected; the patient who needs transbronchial biopsy using bronchoscope. 1: Primary lung cancer 2: Metastatic lung cancer 3: Diffuse interstitial lung disease 2) Age 20 to 80 years 3) ECOG Performance status of 0, 1, or 2 4) Adequate organ function, as - Absolute neutrophil count > or = 1,500/mm3 - Hemoglobin > or = 9.0g/dL - Platelet count > or = 10x10,000/mm3 - AST and ALT < or = 100 IU/L - Total bilirubin level < or = 1.5mg/dL - Serum creatinine level < or = 1.5mg/dL - Prothrombin time-International normalized ratio < or = 1.5 - Oxygen saturation (Room air) > or = 90% - Forced expiratory volume in 1 second > or = 1.0L 5) Written informed consent

Exclusion criteria

Exclusion criteria: 1) Serious hypersensitivity to lidocaine, midazolam, pethidine hydrochloride or other drugs. 2) Using antiplatelet or anticoagulation therapy (an appropriate discontinuation period is necessary). 3) Current or previous history of continuing bloody sputum (>1 tea spoon) within one month. 4) Evidence of tumor invading the hilum of lung, a heart, and major blood vessels on imaging. 5) Severe complications (e.g., uncontrollable peptic ulcer, gastrointestinal bleeding, angina pectoris, cardiovascular disease, or infection) 6) Severe infections 7) Pregnancy, breast feeding and suspected pregnancy. 8) Inappropriate for this study judged by the attending doctor

Design outcomes

Primary

MeasureTime frame
Ratio of the trachea and the bronchus severe bleeding to need for additional intervention, e.g. instillation of ice-cold saline or a diluted vasoconstrictive drug, balloon tamponade, argon plasma coagulation, conversion to rigid bronchoscopy or mechanical ventilation.

Secondary

MeasureTime frame
Ratio of the trachea and the bronchus mild or moderate bleeding Adverse events except the trachea and the bronchus bleeding Definitive diagnosis ratio Size of the specimen (e.g., longer axis, minor axis, area) on pathologic review. Exploratory examination about relations of the pneumothorax and distance between Cryoprobe and the pleura.

Countries

Japan

Contacts

Public ContactSeisuke Nagase

International University of Health and Welfare, Mita hospital Respiratory Disease Center

snagase@iuhw.ac.jp03-3451-8121

Outcome results

None listed

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