CAMBRIDGE, Mass., April 5, 2011 /PRNewswire/ -- Tolerx, Inc., a biopharmaceutical company developing novel therapies to treat autoimmune diseases and cancer by normalizing the immune response, today presented results from preclinical studies with 2F8, a murine analog of TRX518, a first-in-class immunomodulatory agent currently in a Phase 1 clinical study for the treatment of cancer. Preclinical data demonstrated anti-tumor efficacy in a murine model as a monotherapy, and further enhanced efficacy when used in combination with multiple classes of chemotherapeutics and with biologic agents such as anti-CTLA4. Both TRX518, and its murine analog, 2F8, are monoclonal antibodies reactive with the glucocorticoid-induced tumor necrosis factor receptor (GITR) and are designed to enhance the immune system's anti-tumor response by enabling T lymphocytes and other cells to more effectively attack cancer cells. The preclinical data were presented as a poster and invited talk at the Keystone Symposia "Immunoregulatory Networks" meeting held in Breckenridge, Colorado.
"These data underscore the exciting promise of our anti-GITR program, highlighting the potential efficacy of TRX518's unique and powerful mechanism of action," said Tony deFougerolles, Tolerx's Chief Scientific Officer. "The preclinical data suggest that anti-GITR may have similar efficacy to anti-CTLA4, and that the combination of anti-GITR with anti-CTLA4 and chemotherapy may result in dramatic regression of established tumors."
The preclinical studies included combinations of an anti-GITR monoclonal antibody, chemotherapeutic drugs (including gemcitabine, cyclophosphamide, 5-fluorouracil, and doxorubicin), and an anti-CTLA4 monoclonal antibody. These agents were evaluated for their anti-tumor efficacy against established tumors using a colon carcinoma model in mice. Results and data included:
|SOURCE Tolerx, Inc.|
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