This Day On The Street
Continue to site right-arrow
This account is pending registration confirmation. Please click on the link within the confirmation email previously sent you to complete registration.
Need a new registration confirmation email? Click here

Agenus Announces Publication Of Key Data Showing Antitumor Activity Of Prophage Vaccine (HSPPC-96) In Clinical Cancer Research

LEXINGTON, Mass., Aug. 8, 2012 (GLOBE NEWSWIRE) -- Agenus Inc. (Nasdaq:AGEN), a biotechnology company working to develop novel immunology-based treatments for cancers and infectious diseases, today announced the publication of key clinical data from a Phase 1 trial of a Prophage Series vaccine (HSPPC-96; vitespen) to treat patients with recurrent glioblastoma multiforme (GBM).

The data from the Phase 1 trial were published online by Clinical Cancer Research in an article titled, "Individual patient-specific immunity against high-grade glioma after vaccination with autologous tumor derived peptides bound to the 96 KD chaperone protein," by Andrew T. Parsa, MD, Ph.D., Professor in the Department of Neurological Surgery at the University of California, San Francisco (UCSF), and principal investigator for the trial. This data will appear in the printed version this fall.

"Our data show that a tumor specific immune response to peptides bound to gp96 can be generated with autologous HSPPC-96 derived from GBM patients undergoing surgical resection," said Dr. Parsa. "In addition, our observations provide evidence for a general mechanism to elicit individual patient-specific immune responses that appear to correlate with clinical outcome. The results affirm the safety and biological activity of an autologous HSPPC-96 approach for recurrent glioma patients."

A total of 12 patients with a mean age of 52 years were treated in the Phase 1 trial receiving HSPPC-96 as a single-agent therapy. Testing of peripheral blood leukocytes (PBLs) before and after vaccination revealed a significant peripheral immune response specific for the peptides bound to HSP-96, in 11 of the 12 patients treated.  Brain biopsies of immune responders after vaccination revealed focal CD4, CD8 and CD56 IFN-gamma positive cell infiltrates, consistent with tumor site-specific immune responses. Immune responders had a median survival of 47 weeks after surgery and vaccination, compared to 16 weeks for the single non-responder. There were no serious adverse events associated with vaccine administration.

1 of 4

Check Out Our Best Services for Investors

Action Alerts PLUS

Portfolio Manager Jim Cramer and Director of Research Jack Mohr reveal their investment tactics while giving advanced notice before every trade.

Product Features:
  • $2.5+ million portfolio
  • Large-cap and dividend focus
  • Intraday trade alerts from Cramer
Quant Ratings

Access the tool that DOMINATES the Russell 2000 and the S&P 500.

Product Features:
  • Buy, hold, or sell recommendations for over 4,300 stocks
  • Unlimited research reports on your favorite stocks
  • A custom stock screener
Stocks Under $10

David Peltier uncovers low dollar stocks with serious upside potential that are flying under Wall Street's radar.

Product Features:
  • Model portfolio
  • Stocks trading below $10
  • Intraday trade alerts
14-Days Free
Only $9.95
14-Days Free
To begin commenting right away, you can log in below using your Disqus, Facebook, Twitter, OpenID or Yahoo login credentials. Alternatively, you can post a comment as a "guest" just by entering an email address. Your use of the commenting tool is subject to multiple terms of service/use and privacy policies - see here for more details.
Submit an article to us!


DOW 17,698.18 -77.94 -0.44%
S&P 500 2,059.69 -8.20 -0.40%
NASDAQ 4,880.2280 -20.6570 -0.42%

Partners Compare Online Brokers

Free Reports

Top Rated Stocks Top Rated Funds Top Rated ETFs