A 6-year-old girl in China died after receiving an experimental gene therapy for a neurodevelopmental syndrome, according to an investigation by Science and Retraction Watch. The case has sparked questions about China's oversight of gene therapy trials. The treatment was aimed at a rare genetic condition affecting brain development. The investigation revealed that the child's death occurred as part of a clinical trial, though details of the trial's approval and monitoring are under scrutiny. This incident adds to growing concerns about ethics and safety in gene-editing research worldwide. Chinese authorities have launched an investigation into the matter. The case highlights the need for stricter regulations and transparency in experimental medical treatments, especially those involving children. Experts are calling for clearer guidelines to prevent similar tragedies. The girl's family has not commented publicly. The findings were published in a scientific journal, prompting debate among researchers and policymakers. No further information about the specific treatment or trial site has been released.