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FDA places clinical hold on Regenxbio's gene therapy for Hunter Syndrome
- randycupertino 2mo agoViral vectors such as AAV continue to struggle. > The announcement comes seven months after Regenxbio announced that one boy who received a very similar therapy the company developed for MPS type I developed a brain tumor. It was the first tumor to be conclusively linked to AAV gene therapy, the form of gene therapy most commonly used over the past 20 years. > The FDA halted both the MPS I and MPS II trials at the time. And it rejected an application for the MPS II therapy in February.