Longer term analyses of ELIANA study of Kymriah to treat ALL-_ Novartis

Novartis has announced longer-term analyses of both ELIANA and JULIET, the pivotal clinical trials of Kymriah (tisagenlecleucel) in children and young adult patients with relapsed or refractory (r/r) acute lymphoblastic leukemia (ALL) and adult patients with r/r diffuse large B-cell lymphoma (DLBCL) , respectively. In these analyses, Kymriah continued to demonstrate strong efficacy with durable responses and maintained a consistent and well-characterized safety profile. These data are being presented at the 60th American Society of Hematology (ASH) annual meeting.

In the 24-month follow-up analysis of the ELIANA study in children and young adults with r/r B-cell ALL, Kymriah demonstrated deep and durable responses without subsequent therapy in a significant portion of patients in this population. Among 79 evaluable patients, who were followed for at least three months or discontinued earlier, 82% (95% confidence interval [CI], 72% - 90%) achieved complete response (CR) or CR with incomplete blood count recovery (CRi) within three months of infusion; and among these responding patients, 98% had negative minimal residual disease (MRD-). The relapse-free survival rate was 62% at 24 months; and the median duration of remission (mDOR) and median overall survival (mOS) remained unreached, signifying responses are deep and sustained, and further reinforcing the potential for Kymriah to be a definitive therapy for many patients. The probability of OS was 76% (95% CI, 65% - 85%) at 12 months and 66% (95% CI, 58% - 79%) at 24 months.

The safety profile observed in this updated analysis was consistent with previously reported results, with no emergence of new safety signals. Grade 3/4 cytokine release syndrome (CRS) - as defined by the rigorous Penn Grading Scale - occurred in 49% of patients. Within eight weeks of infusion, 13% of patients experienced grade 3 neurological events, with no grade 4 events or cerebral edema[1]. These updated data will be presented in an oral session at the ASH annual meeting (Abstract # 895; Monday, December 3, 4:30 PM PST).