Activity and safety of bortezomib in multiple myeloma patients with advanced renal failure: a multicenter retrospective study

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Abstract
Patients with multiple myeloma (MM) frequently present with concomitant renal dysfunction, and those requiring dialysis have particularly poor outcomes. Bortezomib is a reversible proteasome inhibitor with significant activity in MM. This retrospective case analysis evaluated the feasibility and activity of bortezomib-based therapy in MM patients (n = 24) requiring dialysis support for advanced renal failure. All but 1 patient were undergoing dialysis at the time of therapy. Patients received bortezomib alone or bortezomib-based combination therapy. Among 20 patients with available response data, overall response rate (complete response [CR] + partial response) was 75%, with 30% CR + near CR. One patient was spared dialysis, and 3 other patients became independent of dialysis following bortezomib-based treatment. These encouraging results suggest that bortezomib or bortezomib-based regimens can be used in MM patients requiring dialysis, with manageable toxicities. Further studies will more formally evaluate the impact of bortezomib-based regimens in this patient population.

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