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Juno Therapeutics’ Defined Composition CD19 Product Candidates Demonstrate Encouraging Clinical Outcomes and Tolerability

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JCAR014Updated results from a randomized Phase I/II study examining JCAR014 in patients with relapsed or refractory (r/r) acute lymphoblastic leukemia (ALL), non-Hodgkin lymphoma (NHL), and chronic lymphocytic leukemia (CLL) will be presented today by Cameron Turtle, MBBS, Ph.D., of the Fred Hutchinson Cancer Research Center. Key data include:
  • In efficacy-evaluable ALL patients (N=34), complete remission was reported in 34/34 (100%) patients and complete molecular remission as measured by flow cytometry (CmR) was achieved in 32/34 (94%) patients. Additionally, 13/20 (65%) had a complete molecular remission as measured by the highly sensitive technique of IGH deep sequencing. In the cohort that received fludarabine/cyclophosphamide (Flu/Cy) lymphodepletion, 22/22 (100%) patients achieved a complete remission, all of which were a CmR. Median disease free survival (DFS) and overall survival (OS) have not yet been reached with patients followed for up to 18 months. Severe cytokine release syndrome (sCRS) was observed in 14/36 (39%) patients and Grade 3 or higher neurotoxicity was observed in 14/36 (39%) patients.
  • In patients with multiple NHL histologies (N=20), predominantly diffuse large B-cell lymphoma, who received Flu/Cy lymphodepletion followed by JCAR014 dose level 2 (2x106/kg), 16/20 (80%) had an overall response (OR), of which 10/20 (50%) experienced a complete response (CR). CRs continue in 70% of patients, ranging from 3 to 11+ months. sCRS was observed in 2/20 (10%) patients and Grade 3 or higher neurotoxicity was observed in 2/20 (10%) patients. Notably, 16/20 (80%) patients treated with Flu/Cy lymphodepletion followed by JCAR014 dose level 2 were treated in the outpatient setting, and 6/20 (30%) did not require hospitalization during the first 30 days of treatment.
  • A total of 13 high-risk CLL patients (complex karyotype, del17p, ibrutinib-refractory, ibrutinib-intolerant) received JCAR014 and either non-Flu/Cy (n=2) or Flu/Cy (n=11) lymphodepleting chemotherapy. In the Flu/Cy patients, OR rate was 10/11 (91%) patients, of which 5/11 (45%) patients achieved CR. CRs are ongoing in 100% of these patients with a range of 3 to 19+ months. sCRS was observed in 3/13 (23%) patients and Grade 3 or higher neurotoxicity was observed in 3/13 (23%) patients.
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Occurred on:
Jun 04, 2016
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Related Keywords Cd19 Product Candidates, Jcar014, All, Nhl, Cll, Flow Cytometry, Fludarabine, Cyclophosphamide, Chimeric Antigen Receptor