Reference Detail

Ref Type

PMID

Authors

Nikhil C. Munshi, Larry D. Anderson, Jr, Nina Shah, Sundar Jagannath, Jesus G. Berdeja, Sagar Lonial, Noopur S. Raje, David Samuel DiCapua Siegel, Yi Lin, Albert Oriol, Philippe Moreau, Ibrahim Yakoub-Agha, Michel Delforge, Fabio Petrocca, Jamie Connarn, Payal Patel, Liping Huang, Timothy Brandon Campbell, Kristen Hege, Jesus San Miguel

Title

Idecabtagene vicleucel (ide-cel; bb2121), a BCMA-targeted CAR T-cell therapy, in patients with relapsed and refractory multiple myeloma (RRMM): Initial KarMMa results.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Journal of Clinical Oncology	38	15_suppl

URL

https://ascopubs.org/doi/abs/10.1200/JCO.2020.38.15_suppl.8503

Abstract Text

Background: Outcomes are poor in triple-class exposed RRMM patients (pts) who progress on immunomodulatory agents (IMiDs), proteasome inhibitors (PIs), and CD38 antibodies (mAbs). Ide-cel, a BCMA targeted CAR T cell therapy, showed promising tolerability and efficacy in RRMM pts in the phase I CRB-401 study (NEJM2019;380:1726). We present primary efficacy and safety data from the pivotal phase II KarMMa trial of ide-cel in RRMM (NCT03361748). Methods: Enrolled pts had ≥3 prior regimens (including IMiD, PI, and CD38 mAb) and were refractory to their last regimen per IMWG criteria. After lymphodepletion (cyclophosphamide 300 mg/m2+ fludarabine 30 mg/m2 x 3), pts received 150-450 × 106 CAR+ T cells (target dose range). Endpoints included overall response rate (ORR; primary), complete response (CR) rate, duration of response (DoR), and PFS. Results: Of 140 pts enrolled, 128 received ide-cel. Median age was 61 y; median no. of prior regimens was 6; 84% were triple- and 26% were penta-refractory. Most pts (88%) had bridging therapy. At data cutoff (16 Oct 2019), median follow up was 11.3 mo. ORR was 73% and median PFS was 8.6 mo; both increased with higher dose (Table). All subgroups had an ORR ≥50%, including older and high-risk pts. Most common any-grade (Gr) toxicities were cytopenias (97%) and cytokine release syndrome (CRS; 84%). CRS was mainly Gr 1/2; 5 pts (5%) had Gr 3, 1 had Gr 4, and 1 had Gr 5 (at 300 × 106). Neurotoxicity developed in 23 pts (18%); 4 (3%) Gr 3 and 0 Gr ≥4. Median peak CAR+ T cell expansion occurred at 11 d. Expansion was higher in responders and parameters (AUC0−28d, Cmax) increased with higher dose, with exposure overlap across doses. Persistence was durable, with CAR+ T cells detected in 29/49 (59%) and 4/11 pts (36%) at 6 and 12 mo. Conclusions: Ide-cel demonstrated deep, durable responses in heavily pretreated RRMM pts. Efficacy and safety reflected prior reports and support a favorable ide-cel clinical benefit-risk profile across the target dose range. Clinical trial information: NCT03361748.

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Molecular Profile	Treatment Approach

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description

Gene	Variant	Impact	Protein Effect	Variant Description	Associated with drug Resistance

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References