Evaluating the Safety and Efficacy of Pembrolizumab Combined With MWA for Advanced NSCLC

Lung cancer is one of the most common malignant tumors in the world and has become the No. 1 cause of death from malignant tumors in China. Non-small cell lung cancer (NSCLC) includes squamous cell carcinomas, adenocarcinomas, and large cell carcinomas and accounts for about 80-85% of all lung cancers. NSCLC cancer cells divide slowly in a diffusive manner and metastasize at a relatively late stage compared to small cell carcinomas. A majority of patients with NSCLC are already in advanced stages and have a low 5-year survival rate. Treatments for advanced NSCLC include chemotherapy ,targeted therapies and immunotherapy. The microwave ablation is the good choice for patients who cannot tolerate surgical resection. A large number of studies have shown that local minimally invasive ablation therapy within a certain temperature range can stimulate the body to produce an immune response to varying degrees. The study found that for a variety of malignant tumor models, thermal ablation local treatment of in situ tumors, while the disappearance of other metastatic lesions, and treated mice are resistant to secondary vaccination of the same tumor, proving that thermal ablation therapy stimulates long-lasting Anti-tumor immunity. Pembrolizumab are representative drugs for immunosuppressive agents, and its indications have been approved in various types of tumors, including advanced melanoma, advanced squamous non-small cell lung cancer, advanced renal cell carcinoma, and classical Hodgkin's lymphoma and late recurrent head and neck squamous cell carcinoma patients. Whether the combination of the two can cause a stronger anti-tumor immune response in the body. However, the flexibility, safety and efficacy of using Microwave Ablation combine with Pembrolizumab in NSCLC patients are still unclear.