EPKINLY + R2 has a manageable safety profile; generally consistent with the established profiles of EPKINLY and R2 1,2
Most common treatment-related ARs (≥10%)1
*ARs were graded based on CTCAE Version 5.0. CRS was graded using ASTCT consensus criteria (Lee et al., 2019).
†The frequency of CRS is based on 131 patients who received EPKINLY at the recommended 3-step up dosage schedule. Grade 1 CRS: 19%; Grade 2 CRS: 5%.
‡The frequency of CRS among the 243 patients who received either the 2-step up or 3-step up dosage schedule was the following: any grade CRS 35%; Grade 1 CRS: 28%; Grade 2 CRS: 7%.
§Term includes other related terms. See full Prescribing Information.
IIOnly Grade 3 ARs occurred.
¶Includes 1 case with a fatal outcome.
In 243 patients who received EPKINLY + R2:
- The median duration of exposure was 10 cycles for EPKINLY and 9 cycles for lenalidomide
- Serious ARs occurred in 51% of these patients, including serious infections in 28% of patients and serious CRS in 12% of patients. Fatal adverse reactions within 60 days of last treatment occurred in 0.8% of patients
- Adverse reactions led to permanent discontinuation of EPKINLY in 6% of patients and dose interruption in 75% of patients, with infection as a leading cause. Adverse reactions leading to interruption of EPKINLY in ≥5% of patients included respiratory tract infections, CRS, and rash
- In the EPKINLY arm, adverse reactions led to lenalidomide dose interruption in 72%, dose reduction in 22%, and permanent discontinuation in 15%
- Warnings and precautions include CRS, ICANS, infections, cytopenias, and embryo-fetal toxicity
- The most common Grade 3 to 4 laboratory abnormalities (≥10%) in the EPKINLY + R2 arm vs the R2 arm, respectively, were decreases in neutrophil count (67% vs 41%), decreases in lymphocyte count (62% vs 15%), and decreases in platelet count (10% vs 7%)
AR=adverse reaction; ASTCT=American Society for Transplantation and Cellular Therapy; CRS=cytokine release syndrome; CTCAE=Common Terminology Criteria for Adverse Events; ICANS=immune effector cell–associated neurotoxicity syndrome; R2=rituximab + lenalidomide.

