Dose‐adjusted EPOCH plus rituximab is an effective regimen in patients with poor‐prognostic untreated diffuse large B‐cell lymphoma: results from a prospective observational study

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Abstract
Summary: This study was designed to assess the efficacy and safety of an infusional DA‐EPOCH (dose‐adjusted etoposide/vincristine/doxorubicin/bolus cyclophosphamide/prednisone) and rituximab (DA‐EPOCH‐R) regimen for patients with poor prognosis diffuse large B‐cell lymphoma (DLBCL). Thirty‐three patients, aged 21–76 years, with an age‐adjusted International Prognostic Index (IPI) of 2 or 3, were enrolled, and 31/33 patients were evaluable for response. Consolidative radiation therapy was given to eight patients with bulky (≥10 cm) disease at presentation. Overall, 26 patients (83·8%) achieved a complete remission (CR), four patients (12·9%) achieved a partial remission, and one patient (3·2%) died during induction. Two patients relapsed (7·6%) within 15 months. Grade 3–4 neutropenia developed in 52% of cycles and neutropenic fever in 14% of cycles (51% of patients). The estimates for event‐free survival (EFS) and overall survival at 2 years were 68% and 75% respectively. The only factor related to poor EFS was the presence of three age‐adjusted IPI‐risk factors. We conclude that DA‐EPOCH‐R has clinically significant activity with a favourable toxicity profile for poor‐prognostic DLBCL patients. The administration of DA‐EPOCH‐R as an outpatient regimen by using a single portable infusion pump may be a feasible alternative to improve the compliance and to reduce the total cost of this very effective regimen.

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