Ixazomib: A Review in Relapsed and/or Refractory Multiple Myeloma

Abstract

The oral proteasome inhibitor ixazomib (Ninlaro^®) is approved in the USA, EU and Japan in combination with lenalidomide and dexamethasone, for the treatment of patients with multiple myeloma (MM) who have received at least one prior therapy. In adults with relapsed and/or refractory MM who had received one to three prior therapies, progression-free survival (PFS) was significantly prolonged in patients who received the ixazomib- versus placebo-based triple therapy in the pivotal, global TOURMALINE-MM1 trial and its regional expansion (China continuation study). A significantly longer time to progression and favourable hazard ratios for PFS were observed across all prespecified subgroups, including patients with high cytogenetic risk. Overall response was achieved in a significantly higher proportion of patients receiving ixazomib- than placebo-based treatment. Ixazomib had a manageable tolerability profile in patients with MM. Ixazomib is the first orally-administered proteasome inhibitor approved for patients with MM, and in combination with lenalidomide and dexamethasone represents an important new option for use in patients with relapsed and/or refractory MM who have previously received at least one prior therapy.

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