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PepGen has decided to put a temporary hold on a Phase 2 clinical trial for its experimental Duchenne muscular dystrophy drug, which is designed to skip exon 51, a specific segment of genetic code. According to Wu (2025), this pause is a precautionary measure as the company awaits safety data from a separate trial. No participants have yet been enrolled in the study, which indicates that the decision was made before the trial's initiation.
The delay underscores the importance of safety in the development of new therapies, especially when dealing with complex genetic disorders. The outcome of the safety data from the other trial will likely inform the future of this Phase 2 study, guiding whether and how it will proceed. Wu's report highlights the careful steps companies must take in the clinical trial process to ensure patient safety and the integrity of the study results.