The results of Agenus’ Prophage vaccine Phase 2 study, published last month in Neuro-Oncology, demonstrated that more than 90% of the patients treated with the vaccine candidate were alive at six months. The median overall survival in these patients was approximately 11 months.
In an independent editorial,
The results of the Phase 2 trial have garnered the support of the
“We are excited about these results and the enthusiasm of our colleagues,” said
Prophage G-200 Vaccine Study Design
The Phase 2 trial enrolled 41 patients with a mean age of 55 years with surgically resectable recurrent high-grade GBM, the deadliest form of brain cancer. Patients underwent surgery to remove =90% of their tumors (also referred to as gross total resection), which were then used to manufacture Prophage G-200 vaccine, a patient-specific heat shock protein based therapeutic vaccine. Eligible patients were treated after surgery with Prophage G-200 vaccine once weekly for four weeks, followed by biweekly injections until vaccine depletion. There were no serious adverse events associated with vaccine administration. For further information about this manuscript, please visit http://neuro-oncology.oxfordjournals.org.
The trial was supported through funding from the
About the Randomized Prophage G-200 Vaccine ALLIANCE Trial with Avastin in Recurrent GBM
This study represents the largest brain tumor vaccine trial ever funded by the NCI and the largest vaccine study ever conducted with Avastin. The study aims to advance the treatment of GBM, the most common and malignant form of brain cancer.
The ALLIANCE trial is investigating the potential benefits of treatment with a combination of Prophage G-200 vaccine and bevacizumab in a three-arm study of approximately 222 patients with surgically resectable recurrent GBM using a primary endpoint of overall survival. The study will compare efficacy of the Prophage G-200 vaccine administered with bevacizumab either concomitantly or at progression, versus treatment with bevacizumab alone. This study design is supported in part by previous research indicating a potential synergistic effect between the mechanisms of action of Prophage G-200 vaccine and bevacizumab. For additional information about the ALLIANCE trial visit ClinicalTrials.gov using Identifier NCT01814813.
About Glioblastoma Multiforme (GBM)
The incidence rates of primary malignant brain and central nervous system cancers have increased over the last three decades.8 The
About Prophage Vaccines
Prophage vaccines are individualized cancer vaccine candidates derived from each patient’s own tumor. As a result of its individualized nature, each Prophage vaccine contains the precise signals (antigenic fingerprint) of the patient’s particular cancer and allows the body’s immune system to target only cells bearing this specific fingerprint. Such high precision in immunological targeting represents a distinctly different method for treating cancer compared to conventional anti-cancer treatments such as chemotherapy or radiation therapy. These therapies cause side effects which are sometimes debilitating.
Prophage vaccines are based on Agenus’ heat shock protein platform technology. For more information about Prophage vaccines and Agenus’ heat shock protein platform, please visit http://agenusbio.com/science/prophage.php.
This press release contains forward-looking statements, including statements regarding clinical trial activities, the publication of data, and the potential application of the Company’s technologies and product candidates in the prevention and treatment of diseases. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially. These risks and uncertainties include, among others, the factors described under the Risk Factors section of our Quarterly Report on Form 10-Q filed with the
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