Sangamo BioSciences Announces Results From Diabetic Neuropathy Clinical Trial ...( Company Will Host a Conference Call ...)

Company Will Host a Conference Call Today To Discuss the Data and Ongoing

Clinical Development Programs

RICHMOND, Calif., Nov. 10 /PRNewswire-FirstCall/ -- Sangamo BioSciences, Inc. (Nasdaq: SGMO) announced today top-line data from its SB-509-601 clinical trial, one of Sangamo's three Phase 2 clinical studies from its ZFP Therapeutic(TM) program to develop SB-509 for diabetic neuropathy (DN). The data demonstrate that repeat administration of the drug is well tolerated in subjects with mild to moderate DN. However, no significant differences were observed between the SB-509 and placebo treated subjects in a number of measures of nerve function and health at the primary analysis point, day 180 post-treatment.

Sangamo management will host a conference call at 5:00 p.m. ET today to review these data and the ongoing clinical studies supporting the development of SB-509.

"Our first Phase 2 study, SB-509-601, had three goals," stated Dale Ando, M.D., Sangamo's vice president, therapeutic development and CMO. "First, we wanted to determine the safety of repeat dosing. Second, we evaluated dose schedule, specifically whether a regimen of three administrations of the maximum dose given at two month intervals would be more effective than a single administration. Finally, we hoped to gain clarity around clinical endpoints for use in the design of future studies. While this study has not added to our data around the most suitable end-points or dosing schedule for a Phase 3 trial, it has demonstrated that the drug continues to have an excellent safety profile. This is valuable information for our future development efforts."

"We also know that SB-509 is an active agent. We have positive preclinical dat
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