( WASHINGTON--(BUSINESS WIRE)--Apr 16 20...)Data from Investigator-Sponsored Trial of Oncophage Cancer Vaccine,in Glioma Presented at American Association of Neurological,Surgeons Annual Meeting,Health

WASHINGTON--(BUSINESS WIRE)--Apr 16, 2007 - Antigenics Inc. (NASDAQ: AGEN) today announced an oral presentation of updated data from a Phase 1/2 investigator-sponsored trial of the company's investigational cancer vaccine Oncophage(R) (vitespen) in recurrent, high-grade glioma at the 75th annual meeting of the American Association of Neurological Surgeons (AANS; abstract #606). Preliminary results from the study, being conducted at the Brain Tumor Research Center at the University of California, San Francisco, showed that Oncophage vaccination was associated with significant tumor-specific immune response in all 12 treated patients from baseline (P less than .001), as determined using three separate immune response assessments. Of the 12 patients treated, four continue to receive Oncophage and eight have completed treatment and are evaluable for overall survival. Seven of these eight evaluable patients have exceeded the historical median benchmark of 6.5 months survival from time of recurrence.

"In this trial we have observed a correlation between immune response as a result of Oncophage vaccination and potential clinical benefit," said Andrew T. Parsa, MD, PhD, assistant professor in the department of neurological surgery at the University of California, San Francisco, and recipient of the 2007 Young Investigator Award at AANS. "Understanding that the patients in this trial represent the most challenging patient population to treat, we are highly encouraged by the prolonged improvement in overall survival compared with historical controls."

Commenting on the paper presented at AANS, Henry Brem, MD, director of neurosurgery at Johns Hopkins, noted, "This is an encouraging study of a therapeutic cancer vaccine that targets multiple tumor antigens, supported by rigorous immunomonitoring. A larger Phase 2 trial is certainly warranted to evaluate efficacy." Dr. Brem is a developer of Gliadel(R) Wafer (polife
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