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Crispr Infuses First Human in Landmark Gene-Editing Study

  • Drugmaker treats first patient in beta thalassemia trial
  • Milestone follows clinical hold, ethical uproar on rogue study

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Crispr Therapeutics AG  shares surged after the company said it has treated the first human with the same genetic technology that shares its name in an early-stage study.

Crispr Therapeutics and partner Vertex Pharmaceuticals Inc. said on Monday morning that the first patient in a trial using CTX001, a therapy created using Crispr technology, as a treatment for the rare blood disease, beta thalassemia, received the one-time medicine. The pair also announced the enrollment of the first patient has started in a parallel study for the medicine in sickle-cell disease with the first dosing on track for mid-year.