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U.S. FDA Approves IMBRUVICA (ibrutinib) as First Treatment Specifically Indicated for Relapsed/Refractory Marginal Zone Lymphoma (MZL) - a Rare Type of Non-Hodgkin's Lymphoma

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The approval in MZL is based on data from the Phase 2, open-label, multi-center, single-arm PCYC-1121 study, which evaluated the safety and efficacy of IMBRUVICA in MZL patients who require systemic therapy and have received at least one prior anti-CD20-based therapy. The efficacy analysis included 63 patients with three sub-types of MZL: mucosa-associated lymphoid tissue (MALT; N=32), nodal (N=17) and splenic (N=14). The ORR was achieved in nearly half (46%) of the patients (95% CI: 33.4-59.1) as assessed by an Independent Review Committee (IRC) using criteria adopted from the International Working Group criteria for malignant lymphoma, with efficacy observed across all three MZL sub-types. The median time to response was 4.5 months (range, 2.3-16.4 months).  In the trial, 3.2% of patients had a complete response (CR) and 42.9% of patients had a partial response (PR). The median duration of responses was not reached (NR) (range 16.7 months to NR).1 The data were previously presented at the American Society of Hematology (ASH) Annual Meeting (December 2016).
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Jan 19, 2017
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Related Keywords Imbruvica, Ibrutinib, Non-hodgkin's Lymphoma