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Emergent BioSolutions Inc. (NYSE: EBS) announced today the initiation of a Phase 1b study (Protocol 16009) of TRU-016 in combination with rituximab for patients with previously untreated chronic lymphocytic leukemia (CLL). TRU-016 is a humanized anti-CD37 mono-specific protein therapeutic in development for the treatment of B-cell malignancies.
“Preclinical studies have shown increased anti-tumor activity for the combination of TRU-016 and rituximab beyond the levels achieved when either drug was administered alone,” said Scott C. Stromatt, M.D., Senior Vice President and Chief Medical Officer, Emergent BioSolutions. “We look forward to clinical evaluation of the effect of TRU-016 in combination with rituximab in previously untreated CLL patients.”
The Phase 1b, single-arm, open label study is enrolling approximately 24 previously untreated CLL patients and will evaluate the safety and efficacy of TRU-016 (an anti-CD37 biologic) in combination with rituximab (an anti-CD20 biologic). The primary outcome measurement for this study is overall response rate. Patients will receive TRU-016 and rituximab intravenously for six months. The company expects to complete enrollment in this study in 2013 and present data in the second half of 2013.
TRU-016 is also being evaluated in an ongoing Phase 2 study (protocol 16201) in combination with bendamustine for patients with relapsed CLL. This study is designed to evaluate the safety and efficacy of TRU-016 in combination with bendamustine compared with bendamustine alone. The primary endpoint for the Phase 2 study is an overall response rate as defined by 2008 International Workshop on Chronic Lymphocytic Leukemia (IWCLL) criteria. Secondary endpoints include complete and partial response rates as defined by the 1996 National Cancer Institute (NCI) criteria, progression-free survival, duration of response, and improvement in quality of life and disease symptoms. The company expects to complete enrollment in this study by the end of 2012 and present data in the second half of 2013.
Additional information about the Phase 1b study, as well as the ongoing Phase 2 study in combination with bendamustine in relapsed CLL, can be found on
About Emergent BioSolutions
Emergent BioSolutions protects and enhances life by developing and manufacturing vaccines and therapeutics that are supplied to healthcare providers and purchasers for use in preventing and treating disease. Emergent’s marketed and investigational products target infectious diseases, oncology and autoimmune disorders. Additional information about the company may be found at
www.emergentbiosolutions.com. Follow us on twitter @emergentbiosolu.
Safe Harbor Statement
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