( hat two zinc fingernuclease (ZFN) pre-...)Sangamo BioSciences Announces Presentation of Phase 1 ZFP,Therapeutic Data at American Diabetes Association Meeting,Health

hat two zinc finger nuclease (ZFN) pre-clinical therapeutic programs -- modification of the CCR5 gene in human primary T-cells for the treatment of HIV/AIDS and a novel therapy for the treatment of glioblastoma -- were reviewed and unanimously approved by the National Institutes of Health Recombinant DNA Advisory Committee (RAC) earlier this week. Sangamo filed applications for both programs with the RAC earlier this year, and a unanimous decision was made during the RAC's public review process which took place from June 19-21.

"This is an important step toward our goal of initiating Phase 1 clinical trials of both ZFP Therapeutic programs by the end of this year," said Edward Lanphier, president and CEO of Sangamo. "The fact that the RAC unanimously approved both programs is very gratifying and a testimony to the hard work and tireless preparation by the research and development groups at Sangamo."

Clinical Results Presented at ADA Conference

The data presented at ADA were collected from subjects with mild to moderate diabetic peripheral neuropathy enrolled in Sangamo's Phase 1b study of SB-509. Subjects received a single treatment in both legs of either placebo (6 subjects) or SB-509 (6 subjects who received 60 mg total dose or 30 mg per leg). All of the subjects completed 6-month follow-up testing. Clinicians observed statistically significant clinical improvements in quantitative sensory testing (QST) which quantifies perception of vibration and in nerve conduction velocity (NCV), a measure of the ability of a nerve to transmit an applied electrical signal. Specifically, mean QST testing compared to baseline in SB-509 treated patients showed a 42% improvement compared to 13% worsening in the placebo group (a delta in QST of 55%, p<0.0077) and the mean sum of improvement of all lower extremity motor NCVs was 1.9 Meters/sec with SB-509 treatment compared to -2.3 Meters/sec with placebo (a delta in NCV of 4.2 Meters/sec, p<0.047). Clinicians al
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