Abstract
Dose-adjusted rituximab, etoposide, prednisone, vincristine, cyclophosphamide and doxorubicin (DA.R-EPOCH) is used for upfront treatment of high-risk diffuse large B cell lymphoma (DLBCL). In this study, we compared the outcomes in patients with high-risk DLBCL who received frontline rituximab, cycophosphamide, doxorubicin, vincristine, prednisone (R-CHOP) or DA.R-EPOCH immunochemotherapy. Outcomes and treatment-related cost were analyzed. DLBCL with one of the following features were included in the study: MYC ± BCL2 or BCL6 rearrangement by FISH or MYC overexpression by immunohisto-chemistry, Ki67 index ≥ 80% or nongerminal center immunophenotype, tumor measuring ≥5 cm and NCCN- IPI score ≥4. A total of 80 patients were treated with R-CHOP (n = 52, 65%) or DA.R-EPOCH (n = 28, 35%), with a median follow-up of 11.2 months (range:0.7–151.3 months).The hazard ratios (HRs) for progression-free survival and overall survival were 0.79 [95% confidence interval (CI) 0.28%–2.29%, p = 0.67] and 0.86 (95% CI 0.26%–2.78%, p = 0.80), respectively for DA.R-EPOCH compared to R-CHOP. The total mean cost was USD106,940 ± USD39,351 and USD58,509 ± 24,588 for DA.R-EPOCH and R-CHOP respectively (p < 0.001). In our analysis, DA.R-EPOCH resulted comparable clinical outcomes and increased treatment-related expenses compared to R-CHOP in high-risk DLBCL.
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