About NeuVax™ (nelipepimut-S or E75)
NeuVax (nelipepimut-S or E75) consists of the E75 peptide derived from human epidermal growth factor receptor 2 (HER2) combined with the immune adjuvant granulocyte macrophage colony-stimulating factor (GM-CSF). Treatment with NeuVax stimulates cytotoxic (CD8+) T cells in a highly specific manner to target cells expressing any level of HER2. NeuVax is given as an intradermal injection once a month for six months, followed by a booster injection once every six months. Based on a successful Phase 2 trial that achieved its primary endpoint of disease-free survival, the Food and Drug Administration granted NeuVax a Special Protocol Assessment for its Phase 3 PRESENT ( Prevention of Recurrence in Early- Stage, Node-Positive Breast Cancer with Low to Intermediate HER2 Expression with NeuVax Treatment) study. The Phase 3 trial is ongoing and additional information on the study can be found at www.neuvax.com .
According to the National Cancer Institute, over 230,000 women in the U.S. are diagnosed with breast cancer annually. Of these women, about 75% of them have breast cancer tissue that tests positive for some level of HER2 staining (IHC 1+, 2+ or 3+). Only 25% of all breast cancer patients, those with HER2 3+ disease, are eligible for Herceptin® (trastuzumab; Roche-Genentech), which had revenues of over $6 billion in 2011. NeuVax targets the 50–60% of patients with tumors that are HER2 negative (low-to-intermediate or HER2 1+, 2+), who are not eligible for Herceptin. NeuVax may provide these early-stage breast cancer patients with a treatment option to prevent recurrence and maintain their disease-free status.
About Folate Binding Protein (E39), or FBPFolate Binding Protein (FBP) is a targeted vaccine aimed at preventing the recurrence of ovarian, endometrial, and breast cancers. The FBP vaccine consists of the E39 peptide derived from the folate binding protein combined with the immune adjuvant granulocyte macrophage colony stimulating factor (GM-CSF). FBP is over-expressed (20-80 fold) in more than 90% of ovarian and endometrial cancers, as well as 20–50% of breast, lung, colorectal, and renal cell carcinomas. FBP has very limited tissue distribution and expression in non-malignant tissue, making it an ideal immunotherapy target.
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