( Pre-clinical Data Suggests Angiolix Can...)Access and Somanta Announce Data to be Presented on Angiolix at,ASCO Oncology Conference,Health

DALLAS and IRVINE, Calif., June 04, 2007 /PRNewswire-FirstCall/ -- Access Pharmaceuticals, Inc. (Bulletin Board: ACCP) and Somanta Pharmaceuticals, Inc. (Bulletin Board: SMPM) announced today that a scientific abstract outlining new preclinical efficacy data for Somanta's Angiolix has been selected for publication in the Proceedings of the 43rd American Society of Clinical Oncology (ASCO) Annual Meeting to be held in Chicago, IL, June 1-5, 2007. The data, in a study conducted using mouse models, shows that Angiolix has been able to achieve more than 75% growth inhibition of human breast cancer growing as xenografts in mouse.

ASCO's annual meeting is the world's premier oncology conference providing information on the latest developments in cancer treatment. As previously announced Access and Somanta have signed a definitive merger agreement for Access to acquire Somanta as a step in the creation of a combined company with a broad cancer-focused portfolio in which Angiolix will be a major program.

Angiolix is a humanized monoclonal antibody that recognizes a migrating adhesion molecule called Lactadherin. Somanta's recent data suggests that tumor cells express Lactadherin which is a factor in the growth of tumor vasculature. Several existing or potential anti-cancer drugs (such as Avastin) seek to block tumor vascularization by blocking a signaling protein know as vascular endothelial growth factor (VEGF). The binding of Angiolix to Lactadherin is thought to cause a VEGF-independent integrin receptor signaling cascade that blocks vascular endothelial cell proliferation. Due to its ability to neutralize Lactadherin-integrin receptor binding, Angiolix may be able to specifically target breast cancer cells and thereby cause tumor suppression by blocking the growth of tumor vasculature.

Dr. Agamemnon Epenetos, CEO of Som
'"/>