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Prospective Study of the efficacy of Re-biopsy Using the Cryoprobe in Detection of EGFR-T790M Mutation After EGFR-TKI Failure

Prospective Study of the efficacy of Re-biopsy Using the Cryoprobe in Detection of EGFR-T790M Mutation After EGFR-TKI Failure - Re-biopsy by Cryo

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000029974
Enrollment
25
Registered
2017-11-30
Start date
2018-02-23
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

Non-small cell lung cancer

Interventions

Re-biopsy using the cryoprobe

Sponsors

Kyoto Prefectural University of Medicine Graduate School of Medical Science
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients who confirmed EGFR mutation-positive NSCLC histologically or cytologically and achieved progressive disease on EGFR-TKI treatment who need to access re-biopsy 2. 20 years old or older 3. Informed consent

Exclusion criteria

Exclusion criteria: 1. Poor general condition 2. Lesion located adjacent to the visceral pleura, bulla and large vessel and had high risk of pneumothorax and bleeding on chest CT 3. Lesion located difficult to approach on chest CT 4. Re-examination following prior failure in this trial 5. Patients who need to access non-target lesion by bronchoscopic procedures in the same setting 6. Bleeding tendency 7. Pregnancy 8. Other clinical difficulties in this trial

Design outcomes

Primary

MeasureTime frame
Diagnostic yield of histology specimens (success rate for re-biopsy)

Secondary

MeasureTime frame
EGFR-T790M detection rate Time required for examination procedure Incidence of adverse effects Tissue areas of biopsies

Countries

Japan

Contacts

Public ContactTatsuya Imabayashi

Kyoto Prefectural University of Medicine Graduate School of Medical Science Department of Pulmonary Medicine

imabayas@koto.kpu-m.ac.jp075-251-5513

Outcome results

None listed

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