A Clinical Study of the Cryoablation Technique for Peripheral Lung Malignancies

Launched by GUANGZHOU MEDICAL UNIVERSITY · Feb 12, 2025

Keywords

ClinConnect Summary

This clinical trial is exploring a new treatment method called cryoablation for patients with lung cancer. Cryoablation uses extremely cold temperatures to freeze and destroy cancer cells in the lungs. The study aims to find out how safe and effective this technique is when performed through a procedure called bronchoscopy, which allows doctors to access the lungs through the airways.

To participate in this trial, patients must be at least 18 years old and have been diagnosed with peripheral lung cancer (cancer located at the edges of the lungs) with tumors no larger than 3 centimeters. Participants must also be unable or unwilling to undergo traditional treatments like chemotherapy or surgery. If you join this study, you will undergo the cryoablation procedure, and the medical team will closely monitor your health and any changes in your cancer. This trial is not yet recruiting participants, but it's an opportunity for those who are looking for alternative options for their lung cancer treatment.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • (1) Age ≥ 18 years, with no gender restrictions; (2) Diagnosed as having peripheral lung cancer, with the maximum diameter of the tumor being ≤ 3 cm and the number of tumors being ≤ 3; (3) The lesion intended for ablation is evaluated as feasible for bronchoscopy-guided cryoablation therapy; (4) The subject refuses or is deemed unsuitable for radiotherapy/chemotherapy, or has no response to previous radiotherapy/chemotherapy, or has disease progression after radiotherapy/chemotherapy; (5) Assessed as ineligible for surgery or refuses surgery and radiotherapy, consents to receive initial ablation treatment and signs the informed consent form.
• Exclusion Criteria:
• • (1) Diffuse lesions in both lungs where ablation therapy fails to improve the condition; (2) Examinations within one month prior to the operation reveal the presence of hilar lymph node metastasis or extrapulmonary metastasis (except for cases where extrapulmonary metastasis has been controlled through local treatment); (3) Existence of contraindications for bronchoscopy, or inability of the patient to tolerate or cooperate with bronchoscopy; (4) Severe bleeding tendencies or uncorrectable coagulation dysfunctions (prothrombin time \> 18 seconds, prothrombin activity \< 40%); (5) Platelet count \< 70×109/L, or discontinuation of anticoagulant and/or antiplatelet drugs less than one week before ablation (except for the prophylactic use of low-molecular-weight heparin before the operation); (6) Severe impairment of lung function with a maximum ventilation volume \< 40%; (7) Concurrent presence of other tumors with extensive metastasis and an expected survival period of less than 3 months; (8) Poor overall condition (multiple metastases throughout the body, severe infection, high fever), infectious and radiation-induced inflammation around the lesion, obvious cachexia, severe dysfunction of important organs, severe anemia and short-term uncorrectable nutritional and metabolic disorders; (9) Eastern Cooperative Oncology Group (ECOG) performance status score \> 2; (10) The lesion to be ablated has received radiotherapy within the past 6 months; (11) Active hepatitis B, active hepatitis C, human immunodeficiency virus (HIV) infection history (known positive for HIV1/2 antibodies), or other active infections that are judged by the researcher to potentially affect the patient's treatment; (12) Accompanied by epilepsy, history of mental illness or cognitive impairment; (13) Pregnant or lactating women, as well as male or female patients who plan to have children or become pregnant during the trial; (14) Participation in any other clinical trials within 3 months before signing the informed consent (excluding non-interventional studies); (15) Other circumstances deemed by the researcher as inappropriate for participation in this clinical trial.