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CAR-T for myeloma, impressive response rate, overall survival not reached.
CARTITUDE-1, a phase Ib/II study evaluating the safety and efficacy of ciltacabtagene autoleucel (cilta-cel) in heavily pretreated patients with relapsed/refractory multiple myeloma, yielded early, deep, and durable responses at 12 months. Here, we present updated results 2 years after last patient in (median follow-up [MFU] approximately 28 months), including analyses of high-risk patient subgroups.
Eligible patients had relapsed/refractory multiple myeloma, had received ≥ 3 prior lines of therapy or were double refractory to a proteasome inhibitor and immunomodulatory drug and had received prior proteasome inhibitor, immunomodulatory drug, and anti-CD38 therapy. Patients received a single cilta-cel infusion 5-7 days after lymphodepletion. Responses were assessed by an independent review committee.
At a MFU of 27.7 months (N = 97), the overall response rate was 97.9% (95% CI, 92.7 to 99.7); 82.5% (95% CI, 73.4 to 89.4) of patients achieved a stringent complete response. Median duration of response was not estimable. Median progression-free survival (PFS) and overall survival (OS) were not reached; 27-month PFS and OS rates were 54.9% (95% CI, 44.0 to 64.6) and 70.4% (95% CI, 60.1 to 78.6), respectively. Overall response rates were high across all subgroups (95.1%-100%). Duration of response, PFS, and/or OS were shorter in patients with high-risk cytogenetics, International Staging System stage III, high tumor burden, or plasmacytomas. The safety profile was manageable with no new cilta-cel–related cytokine release syndrome and one new case of parkinsonism (day 914 after cilta-cel) since the last report.
At approximately 28 months MFU, patients treated with cilta-cel maintained deep and durable responses, observed in both standard and high-risk subgroups. The risk/benefit profile of cilta-cel remained favorable with longer follow-up.
Direct comparison of Dara+len vs. len maintenance for those with +MMR after Auto-HSCT. MRD-neg conversion rates were higher in the combo arm. This is likely going to continue gaining traction in this group of patients.
Retrospective assessment of the SWOG0777 and SWOG 1211 studies showing that dose reductions in dexamethasone did not affect outcomes. Nice to see this does not have a negative impact, as I have been doing this for years in my elderly patients who would not tolerate the ultra-high dose steroids used in these trials.
MRD at year 1 can be prognostic in pt who had AutoBMT followed by maintenance linolidomide. Please use MRD wisely … it can be expensive.
First line regimen, first quad for transplant INELIGIBLE patients, PFS at 5 years is 63% vs 45% for RVD. This will probably be the new standard of care for this population with manageable toxicity. Recall Dara RVD is for transplant eligible patients.
This regimen vs pomalidomie, bortezomib and dexma. 12-month estimated progression-free survival with BPd was 71% compared with 51% with PVd (hazard ratio for disease progression or death, 0.52) Ocular toxicity Grade 3 or higher adverse events occurred in 94% of the patients in the BPd group and 76% of those in the PVd group.
FCS Hematology Oncology Review creates a platform for our physician network to observe the most recent articles and studies available in the oncology and hematology world. By sharing these articles we are building our wealth of knowledge of new observations and treatments as they come available.
