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The original was posted on /r/science by /u/mvea on 2025-05-08 10:06:26+00:00.

Original Title: First-in-human clinical trial testing CRISPR/Cas9 gene-editing in 12 highly metastatic, end-stage GI cancer patients saw several of their cancer growth halt, and one patient had a complete response - metastatic tumors disappeared over course of several months and have not returned in over two years.