FDA Priority Review for Arzerra sBLA in Leukemia

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The study involved 365 patients, who were randomized 1:1 to treatment with up to six cycles of of atumumab in combination with fludarabine and cyclophosphamide or up to six cycles with fludarabine and cyclophosphamide alone. The study met the primary endpoint with a median progression free survival in patients receiving ofatumumab in combination with FC of 28.9 months, compared to 18.8 months in patients receiving FC alone, according to the companies. Ofatumumab is a human monoclonal antibody that is designed to target the CD20 molecule found on the surface of CLL cells and normal B lymphocytes. It is currently approved by FDA for use in combination with chlorambucil for treating previously untreated patients with CLL for whom fludarabine-based therapy is considered inappropriate. Arzerra is also approved as extended treatment of patients who are in complete or partial response after at least two lines of therapy for recurrent or progressive CLL.

FDA has accepted for priority review a Novartis and Genmab supplemental BLA for Arzerra (ofatumumab) and its use in combination with fludarabine and cyclophosphamide (FC) for treating patients with relapsed chronic lymphocytic leukemia (CLL). The submission is based on results from the Phase 3 COMPLEMENT 2 study, which evaluated ofatumumab in combination with FC versus FC alone in patients with relapsed CLL.
 

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