CAMBRIDGE, Mass. & BOTHELL, Wash.--(BUSINESS WIRE)--

Millennium: The Takeda Oncology Company, a wholly owned subsidiary of Takeda Pharmaceutical Company Limited (TSE:4502), and Seattle Genetics, Inc. (SGEN), today announced preliminary data from one arm of a three arm phase I, open-label, multicenter study designed to determine the safety and activity of sequential and combination treatment approaches of brentuximab vedotin with CHOP1 or CH-P chemotherapy in newly diagnosed patients with CD30-positive mature T- and NK- cell lymphomas. Data were presented from one arm, which evaluates brentuximab vedotin in sequence with CHOP in patients with newly diagnosed systemic anaplastic large cell lymphoma (sALCL), a subtype of mature T- and NK cell lymphomas. The data were reported during an oral presentation at the ESMO 2012 Congress (European Society for Medical Oncology) being held September 28 October 2, 2012 in Vienna, Austria.

Brentuximab vedotin is an antibody-drug conjugate (ADC) directed to CD30, a defining marker of sALCL. Data from the other arms of the study evaluating administration of brentuximab vedotin with CH-P are expected to be presented during 2012.

The preliminary data from the sequential treatment arm of this phase I study show that side effects were manageable and there are also some encouraging data on activity, said Michelle Fanale, M.D., University of Texas MD Anderson Cancer Center, Houston, TX. We look forward to reporting additional data from the combination arms of the study at an upcoming medical congress.

Sequential Therapy with Brentuximab Vedotin in Newly Diagnosed Patients with Systemic Anaplastic Large Cell Lymphoma

The oral presentation featured data from Arm 1 of the study, which evaluated treatment with 1.8milligrams per kilogram of single-agent brentuximab vedotin for two cycles prior to sixcycles of CHOP. Patients who achieved a complete remission (CR) or partial remission (PR) following CHOP were eligible to continue single-agent brentuximab vedotin for up to eight cycles. The primary endpoints for Arm 1 are safety and tolerability. The secondary endpoint is investigator assessment of response using the Revised Response Criteria for Malignant Lymphoma (Cheson 2007). The median age of enrolled patients was 62years (range, 23-81). Among the 13 patients with newly diagnosed sALCL, ten had anaplastic lymphoma kinase (ALK)-negative disease and three had ALK-positive disease.

The companies plan to initiate a phase III clinical trial in patients with mature T-cell lymphomas evaluating brentuximab vedotin in combination with CH-P compared to CHOP in late 2012 to early 2013.

Data, presented by Dr. Fanale, included:

Details of the oral presentation are as follows:

Data on brentuximab vedotin was also described in the following poster session:

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Millennium and Seattle Genetics Highlight Data from ADCETRIS® (Brentuximab Vedotin) Trial in Patients with Newly ...

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