XOMA Discovers Two New Classes of Insulin Receptor-Regulating Antibodies
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SAN DIEGO, June 27, 2011 (GLOBE NEWSWIRE) -- XOMA Ltd. (Nasdaq: XOMA), a leader in the discovery and development of therapeutic antibodies, announced the first presentation of results from its discovery of two new classes of fully human monoclonal antibodies that activate or sensitize the insulin receptor in vivo, each representing a distinct new therapeutic approach to the treatment of patients with diabetes. The data were presented at the American Diabetes Association 71st Scientific Sessions in San Diego. Insulin is the key metabolic hormone for regulating blood sugar and exerts its action on cells by signaling through the insulin receptor. Alterations in insulin signaling occur in Type 2 diabetes and its precursor, metabolic syndrome. Highly specific human antibodies that activate or sensitize the insulin receptor offer new direct mechanisms for treating different aspects of the diabetes disease spectrum. Insulin receptor-activating antibodies such as XOMA's XMetA antibody are designed to provide long-acting insulin-like activity to diabetic patients who cannot make sufficient insulin, potentially reducing the number of insulin injections needed to control their blood glucose levels. In contrast, insulin receptor-sensitizing antibodies such as XOMA's XMetS are designed to reduce insulin resistance and could enable diabetic patients to more effectively use their own insulin to control blood glucose levels. Studies presented on the XMetA antibody demonstrated that it reduced fasting blood glucose levels and improved glucose tolerance in a mouse model of diabetes. After six weeks of treatment, there was a statically significant reduction in hemoglobin A1c levels, a standard measure of average blood glucose levels over time, in mice treated with XMetA compared to control. In addition, there was a statistically significant reduction in elevated non-HDL cholesterol levels. Studies of the XMetS antibody in a mouse model of obesity-induced insulin resistance showed enhanced insulin sensitivity and statistically significant improvements in fasting blood glucose levels and glucose tolerance in mice treated with XMetS as compared to control. In addition, there was a statistically significant reduction in elevated non-HDL cholesterol levels. Presentation details: High Affinity Partial Agonist Insulin Receptor Antibodies Stimulate Insulin Activity and Improve Glycemic Control in Murine Models of Diabetes; ADA Abstract No. 0417-PP presented during General Poster Session III High Affinity Insulin Receptor Antibodies Sensitize the Insulin Receptor to Insulin and Restore Glycemic Control in Murine Models of Diabetes; ADA Abstract No. 1008-P presented during Pharmacologic Treatment of Diabetes -- Novel Therapies III About XOMA XOMA is a leader in the discovery and development of novel antibody therapeutics. The company's proprietary product pipeline includes: -- XOMA 052, a potentially best-in-class antibody that binds to the inflammatory cytokine interleukin-1 beta, or IL-1 beta. XOMA plans to enter XOMA 052 into Phase 3 clinical development in Behcet's uveitis, an orphan indication. Les Laboratoires Servier is XOMA's development and commercialization partner for XOMA 052. -- XOMA 3AB, a novel combination of three antibodies to prevent and treat botulism poisoning caused by exposure to botulinum neurotoxin Type A, among the most deadly bioterror threats. XOMA 3AB is in a Phase 1 clinical trial sponsored by the National Institute of Allergy and Infectious Diseases (NIAID) of the National Institutes of Health (NIH). The XOMA 3AB project has been funded in whole or in part with funds from NIAID, NIH, Department of Health and Human Services under Contract No. HHSN266200500004C, Contract No. HHSN266200600008C and Contract No. HHSN272200800028C. -- A preclinical pipeline with candidates in development for autoimmune, cardio-metabolic, inflammatory and oncologic diseases. XOMA has a premier antibody discovery and development platform that incorporates an unmatched collection of antibody phage display libraries and proprietary optimization and expression and manufacturing technologies that it uses for its own pipeline and in collaborations with pharmaceutical and biotechnology companies. XOMA technologies have contributed to the success of marketed antibody products including LUCENTIS(R) for wet age-related macular degeneration and CIMZIA(R) for rheumatoid arthritis and Crohn's disease. XOMA's fully integrated product development infrastructure extends from preclinical science to approval and is located in Berkeley, California. For more information, please visit www.xoma.com. The XOMA Ltd. logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=5960 Forward-Looking Statements Certain statements contained herein concerning product development or that otherwise relate to future periods are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements are based on assumptions that may not prove accurate. Actual results could differ materially from those anticipated due to certain risks inherent in the biotechnology industry and for companies engaged in the development of new products in a regulated market. Among other things, results of early-stage clinical trials may not be supported by later findings, larger trials and/or other actions required for regulatory approval may not be economically feasible, and results of clinical trials may in any event not be consistent with preclinical or interim results. These and other risks, including the generally unstable nature of current economic and financial market conditions; the results of discovery research and preclinical testing; the timing or results of pending and future clinical trials (including the design and progress of clinical trials; safety and efficacy of the products being tested; action, inaction or delay by the FDA, European or other regulators or their advisory bodies; and analysis or interpretation by, or submission to, these entities or others of scientific data); changes in the status of existing collaborative and licensing relationships; the ability of collaborators, licensees and other third parties to meet their obligations; XOMA's ability to meet the demands of the United States government agency with which it has entered into its government contracts; competition; market demands for products; scale-up and marketing capabilities; availability of additional licensing or collaboration opportunities; international operations; share price volatility; XOMA's financing needs and opportunities; uncertainties regarding the status of biotechnology patents; uncertainties as to the costs of protecting intellectual property; and risks associated with XOMA's status as a Bermuda company, are described in more detail in XOMA's most recent filing on Form 10-K and in other SEC filings. Consider such risks carefully when considering XOMA's prospects. CONTACT: XOMA Ltd. Company and Investor Contact: Carol DeGuzman 510-204-7270 email@example.com Canale Communications Media Contact: Carolyn Hawley 619-849-5375 firstname.lastname@example.org
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