Juno Therapeutics Inc. has ended development of its CD19-targeting chimeric antigen receptor T-cell (CAR-T) therapy JCAR015 for the treatment of acute lymphoblastic leukemia (ALL) due to safety concerns, answering with certainty the question of whether the company could catch up to its competitors, which will be seek approvals for their CAR-T therapies any day now.
Juno said on March 1 in its fourth quarter and year-end 2016 earnings report that the company and its partner Celgene Corp. ended the pivotal ROCKET clinical trial that had been placed on clinical hold multiple times due to severe neurological side effects and patient deaths. The company will focus its efforts in ALL on its defined cell technology instead, including the CD19-targeting JCAR017, which it has been promoting as better and safer than JCAR015 since the first ROCKET clinical hold