The report, entitled 'AE37 peptide vaccination in prostate cancer: a 4-year immunological assessment update on a phase I trial' is being published in the journal Cancer Immunology, Immunotherapy (
Intriguingly, none of the patients in this study belonging to the intermediate or high risk groups as determined by Gleason score developed metastasis, even though metastases would have been predicted to occur in roughly 27% of nine intermediate-risk patients and 60% of eight high-risk patients based upon historical data from patients with these stages of disease. In addition, the median overall survival of six patients with metastatic disease was 89 months, which considerably exceeds that usually observed in this group historically.
"While clearly not designed as an efficacy study, the lack of disease progression observed in this Phase I trial is encouraging," commented Dr.
AE37 is also the subject of a controlled, randomized and single-blinded Phase II trial to prevent relapse in patients who have had breast cancer. An interim analysis showed a strong trend toward reduction in relapse in patients receiving the vaccine, particularly those with low to intermediate levels of the HER2 protein. Patients in this category have few treatment options. Primary efficacy results from the study are expected to be released this fall. The FDA previously has encouraged the company to submit a Phase III protocol based upon the interim analysis.
Generex is engaged in the research, development, and commercialization of drug delivery systems and technologies. Generex has developed a proprietary platform technology for the delivery of drugs into the human body through the oral cavity (with no deposit in the lungs). The Company's proprietary liquid formulations allow drugs typically administered by injection to be absorbed into the body by the lining of the inner mouth using the Company's proprietary RapidMist™ device. Antigen Express, Inc. is a wholly owned subsidiary of Generex. The core platform technologies of Antigen Express comprise immunotherapeutic vaccines for the treatment of malignant, infectious, allergic, and autoimmune diseases. Antigen Express has pioneered the use of specific CD4+ T-helper stimulation technologies in immunotherapy. One focuses on modification of peptides with Ii-Key to increase potency, while a second relies on inhibition of expression of the Ii protein. Antigen Express scientists, and others, have shown clearly that suppression of expression of the Ii protein in cancer cells allows for potent stimulation of T-helper cells and prevents the further growth of cancer cells. For more information, visit the Generex website at www.generex.com or the Antigen Express website at www.antigenexpress.com.
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