Juno Therapeutics received notice from the US Food and Drug Administration (FDA) that a clinical hold has been placed on the Phase II clinical trial of JCAR015 in adult patients with relapsed or refractory B cell acute lymphoblastic leukemia (r/r ALL), known as the “ROCKET” trial.
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The clinical hold was initiated after two patient deaths last week, which followed the recent addition of fludarabine to the pre-conditioning regimen.
Juno has proposed to the FDA to continue the ROCKET trial using JCAR015 with cyclophosphamide pre-conditioning alone. In response, the FDA has requested that Juno submit, as a Complete Response to the Clinical Hold: a revised patient informed consent form, a revised investigator brochure, a revised trial protocol, and a copy of the presentation made to the agency yesterday. Juno will submit the requested information to the FDA this week.
Juno’s trials and plans for its other CD19-directed CAR-T cell product candidates, including JCAR017, are not affected.
Juno Therapeutics is building a fully integrated biopharmaceutical company focused on re-engaging the body’s immune system to revolutionize the treatment of cancer.