About Glioblastoma Multiforme (GBM)
The incidence rates of primary malignant brain and central nervous system (CNS) cancers have increased over the last three decades.  The American Cancer Society estimates that more than 22,000 malignant tumors of the brain or spinal cord were diagnosed during 2010 in the US and that more than 13,000 people would die from these tumors. Glioblastoma is the most common primary malignant brain tumor and accounts for the majority of diagnoses. It has been associated with a particularly poor prognosis, with survival rates at one and five years equaling 33.7% and 4.5%, respectively.  The current standard of care for patients with newly diagnosed glioblastoma is surgical resection followed by fractionated external beam radiotherapy and systemic temozolomide  resulting in a median overall survival (OS) of 14.6 months  based on data from a randomized Phase III trial. Although this treatment can prolong survival, it is not curative and the vast majority of patients with glioblastoma experience recurrent disease, with a median time to recurrence of seven months.  Currently, there is no standard treatment for patients with recurrent glioblastoma, although additional surgery, chemotherapy (i.e., CCNU, temozolomide), bevacizumab, and radiotherapy are used.
About the Prophage Series Cancer Vaccines
Prophage series cancer vaccines candidates are autologous therapies derived from cells extracted from the patient's tumor. As a result, Prophage Series vaccines contain a precise antigenic 'fingerprint' of a patient's particular cancer and are designed to reprogram the body's immune system to target only cells bearing this fingerprint, reducing the risk that powerful anti-cancer agents will target healthy tissue and cause debilitating side effects often associated with chemotherapy and radiation therapy. The Prophage Series G vaccines are currently being studied in two different settings of GBM: newly diagnosed and recurrent disease.In addition to the newly diagnosed GBM study with G-100 and the ALLIANCE trial, a Phase 2 study testing the Prophage Series G-200 in patients with recurrent glioma is underway. Agenus expects the final trial results of this study to be published in a scientific journal in 2013.
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