On December 16, 2016 TG Therapeutics, Inc. (NASDAQ:TGTX) reported the publication of clinical data from a Phase 2 study of TG-1101 (ublituximab), the Company’s novel glycoengineered anti-CD20 monoclonal antibody, in combination with ibrutinib, the oral BTK inhibitor, in patients with Chronic Lymphocytic Leukemia (CLL) (Press release, TG Therapeutics, DEC 16, 2016, View Source [SID1234517088]). The data, which was presented at the 2015 International Conference on Malignant Lymphoma (ICML) in Lugano, Switzerland, demonstrates the combination to be well tolerated with limited grade 3/4 adverse events observed. An 88% overall response rate (ORR) was reported at month 6 for all patients treated, with a 95% ORR observed in patients with high risk CLL (presence of a 17p or 11q deletion or a TP53 mutation). These data are described further in the manuscript titled, "Ublituximab (TG-1101), a novel, glycoengineered anti-CD20 antibody, in combination with ibrutinib is safe and highly active in patients with relapsed and/or refractory chronic lymphocytic leukemia: results of a phase 2 trial," which was published online today in the British Journal of Haematology. The online version of the article can be accessed at View Source Schedule your 30 min Free 1stOncology Demo! "We want to thank Dr. Jeff Sharman and the team at the US Oncology Network for their work on this important Phase 2 study and congratulate them on this peer-reviewed publication. We believe the chemo-free combination of TG-1101 and ibrutinib is an effective and much needed treatment option for patients with high-risk CLL who continue to exhibit a poor prognosis, and the data in this publication underscores our belief. The results from this study support the GENUINE Phase 3 study, and given the dramatic and rapid responses seen in this Phase 2, we are confident in the success of GENUINE. We recently announced the completion of enrollment in the revised GENUINE trial and look forward to announcing top line data in the first half of 2017," stated Michael S. Weiss, the Company’s Executive Chairman and Interim Chief Executive Officer.
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"While ibrutinib is effective in patients with CLL, it is not the only answer. In this study, the addition of ublituximab to ibrutinib not only produced high response rates, but also allowed patients to achieve deeper responses with complete responses and minimal residual disease (MRD) negativity seen, which is rare with ibrutinib alone. We look forward to exploring how the increased depth of response may affect the sequence of treatments given to patients," stated Dr. Jeff Sharman, Medical Director of Hematology Research for the US Oncology Network.