Gene therapy death not caused by CRISPR, investigators confirm
Investigators found Terry Horgan did not die as a result of CRISPR itself, but raised concerns about the difficulties researchers will face developing custom gene therapies.
Terry Horgan, the 27-year-old patient who died eight days after receiving a CRISPR therapy custom-built for him, likely suffered a fatal innate immune response to the virus used to deliver the treatment, investigators concluded.
The findings, posted late Thursday to the preprint server Medrxiv, confirmed that CRISPR, the Nobel-Prize winning genome editing tool now being used to develop treatments for a wide range of diseases, played no role in Terry’s death.
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