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Primary lung cancer (abbreviated as lung cancer) stands as the most prevalent malignant disease and the leading cause of cancer-related death in China, with an estimated 106.06×10
4 incident cases and 73.33×10
4 deaths in 2022. Due to the absence of effective early screening methods, most patients with lung cancer in China are in stage Ⅳ when diagnosed. Multi-disciplinary treatment based on systemic therapy is the treatment principle for patients with stage Ⅳ lung cancer. Chemotherapy remains the cornerstone, but its effectiveness is still unsatisfactory. In recent years, with the rapid development of molecular targeted therapy and immunotherapy, the treatment concept for stage Ⅳ lung cancer has been continually evolving, leading to significant improvements in patient treatment outcomes. To ensure timely updates on the global progress in the treatment of stage Ⅳ lung cancer and further improve the level of standardized diagnosis and treatment of stage Ⅳ lung cancer in China, Medical Oncology Branch of China International Exchange and Promotive Association for Medical and Health Care and Chinese Association for Clinical Oncologists organized experts to compile 'China clinical practice guideline for stage Ⅳ primary lung cancer (2024 edition)'. This guideline systematically and comprehensively updates epidemiological data, TNM staging, new drugs, treatment regimens, and new indications approved by China National Medical Products Administration before June 30, 2024, etc. Based on the ' Clinical practice guideline for stage Ⅳ primary lung cancer in China(2021 version)' and the ' Clinical practice guideline for stage Ⅳ lung cancer in China (2023 edition).' This guideline incorporates recommendation levels for therapeutic drugs and treatment flowcharts for stage Ⅳ lung cancer. The guideline covers common clinical issues and corresponding guidance in the diagnosis and treatment process of stage Ⅳ lung cancer. The guideline aims to guide the clinical practice of stage Ⅳ lung cancer, comprehensively improve the standardized diagnosis and treatment level in China, prolong the survival time of patients with stage Ⅳ lung cancer, and improve patients' quality of life.
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