The Role and Challenges of Investigator‐Initiated Trials in the Cell and Gene Therapy Products Boom in Mainland China

As cutting-edge technologies in biomedicine, cell and gene therapy (CGT) products demonstrate immense potential in treating cancer, rare diseases, and genetic disorders, thereby driving the importance of clinical research in this area. This study analyzes the growth trends and key characteristics of 1033 Investigator-Initiated Trials (IITs) conducted by mainland Chinese institutions in the CGT field. The results show that IITs have played a positive role in the early proof-of-concept of CGT products, helping to obtain preliminary safety and efficacy data, and exploring the combination of CGT products with other therapies. Additionally, this study discusses the regional distribution, therapeutic areas, and challenges faced by IITs in the development of CGT products in China. Based on these findings, policy suggestions are proposed to optimize the regulation of IITs in mainland China, such as improving regulatory frameworks and enhancing technical guidance. It is hoped that these measures will further improve the efficiency and quality of IITs, fully utilize the large patient base and abundant clinical resources, and support the development of high-quality CGT products in mainland China.