01 Jun The median progression-free survival (PFS) was not reached in responders but at 12 months, the PFS rate was 76
6% (95% CI, 66.0%-84.3%). In those who achieved an sCR, the 12-month PFS rate was 84.5% (95% CI, 72.0%-91.8%) and was 68.0% (95% CI, 46.1%-82.5%) in hookupdate.net/es/mennation-review/ patients who had a very good partial response.
“Patients with relapsed/refractory myeloma have a median overall survival of only 9.2 months in triple-refractory [disease] and only 5.6 months in penta-refractory. In this study, we know that the median PFS is at least a full year and we still haven't even reached a median PFS after a median duration of follow-up of 12.4 months,” Madduri commented.
Additionally, cytokine release syndrome (CRS), a common CAR T-cell therapy–related AE, was reported in 94
At 1 year, the overall survival rate was 88.5% (95% CI, 80.2%-93.5%). The median overall survival was also not yet reached.
The most common grade 3/4 adverse events (AEs) were hematologic and observed in 99.0% of all patients, consisting of neutropenia in 94.8%, anemia in 68.0%, leukopenia in 60.8%, and thrombocytopenia in 59.8%. The median time to recovery of these grade 3/4 cytopenias was 2 weeks for neutropenia and 4 weeks for thrombocytopenia. The rate of any-grade infections was 57.7%, and the most common grade 3/4 infections were pneumonia (8.2%) and sepsis (4.1%).
Grade 3/4 non-hematologic toxicities were not common in the study, including hypophosphatemia at 7.2%, fatigue at 5.2%, aspartate aminotransferase increase at 5.2%, and hyponatremia at 4.1%.
“One distinguishing aspect of this study is the median time to onset of CRS, which is 7 days, with 89% of these patients having CRS at day 4 or later and 74% of these patients having CRS at day 6 or later, opening the possibility of outpatient administration.