AVANT Reports Second Quarter and Six Month Financial Results

Business Wire, August 6, 2008

About AVANT Immunotherapeutics, Inc.

AVANT Immunotherapeutics, Inc. is a NASDAQ-listed company discovering and developing innovative vaccines and targeted immunotherapeutics for the treatment of cancer, infectious and inflammatory diseases. AVANT focuses on the use of tumor-specific targets and human monoclonal antibodies (mAbs) to precisely deliver therapeutic agents through its novel "targeted immunization" approach. In addition, AVANT is also exploiting its access to proprietary human antibody technology for development of therapeutics monoclonal antibodies (mAbs). AVANT's deep product pipeline consists of products in varying stages of development, with its lead candidate, CDX-110, partnered with Pfizer, Inc., currently undergoing evaluation in a Phase 2/3 clinical trial in newly diagnosed glioblastoma multiforme, one of the most aggressive forms of brain cancer. AVANT also has five product candidates in its development pipeline including:

* CDX-1307, a product based on its proprietary APC Targeting Technology([TM]), which is in two Phase 1 clinical trials for patients with advanced pancreatic, bladder, breast and colon cancer;

* TP10, a complement inhibitor, in development for transplantation and other indications; and

* Three candidates based on its oral, rapidly-protecting, single-dose and temperature-stable vaccine technology, including combination vaccines for travelers, the military and global health needs.

AVANT licensed a rotavirus strain to GlaxoSmithKline that was used in the development of Rotarix([R]) for the prevention of rotavirus infection. In addition, AVANT has two human food safety vaccines for reducing salmonella infection in chickens and eggs which have been commercialized. Additional information on AVANT Immunotherapeutics, Inc. can be obtained through its site on the World Wide Web: http://www.avantimmune.com.