摘要真实世界研究逐渐成为改变临床实践的重要证据来源之一，尤其是对于无法行随机对照试验的临床问题。近年来，乳腺癌领域真实世界研究逐渐兴起，现有研究成果已开始助力乳腺癌流行病学分析，推动罕见病诊疗及适应证批准，并促进真实世界治疗现状分析及疗效评价。我国学者也建立了乳腺癌数据库并开展了相关真实世界研究，为我国临床实践提供了真实世界证据。但目前国内研究仍处于起步阶段，国内学者发表的真实世界研究文献数量相对较少，研究类型中鲜有实效性临床研究，并且缺少真正用于决策制定的真实世界研究。未来需要结合国内优势，进一步完善数据库，开展基于国人数据及助力药物研发的真实世界研究。

abstractsReal-world study is increasingly becoming an important source of evidence for changing clinical practice, especially for clinical problems that can′t be randomized. In recent years, real-world research in the field of breast cancer has gradually became a boom. Existing research results have begun to assist in the epidemiological analysis of breast cancer, promote the approval of rare diseases diagnosis and indication, and promote the analysis of real-world treatment status and evaluation of curative effects. Chinese scholars have also established databases and carried out relevant real-world research, providing real-world evidence for clinical practice in China. But domestic research is still in its infancy. The number of real-world research literature published by domestic scholars is relatively small, and there is a lack of pragmatic randomized clinical trial and real-world research for decision-making. In the future, we need to take advantage of the abundant diagnosis and treatment resources, further improve the database, and carry out real-world study on drug development based on population data in China.