Inovio Pharmaceuticals Enters Phase II Clinical Trial with SynCon™ DNA Vaccine for Cervical Dysplasia Caused by HPV

BLUE BELL, Pa., Mar. 7, 2011 /PRNewswire/ — Inovio Pharmaceuticals, Inc. (NYSE Amex: INO), a leader in the development of therapeutic and preventive vaccines against cancers and infectious diseases, announced today that it is initiating a Phase II clinical trial for its VGX-3100 DNA vaccine for cervical dysplasia and cancer caused by human papillomavirus (HPV).

The study will assess adult females with CIN 2/3 or CIN 3 and biopsy-proven HPV 16 or 18. Cervical intraepithelial neoplasias (CIN) are pre-cancerous stages of abnormal cells that precede cervical cancer. HPV types 16 and 18 are responsible for 70% of CIN 2/3 and cervical cancer incidences. The randomized, placebo-controlled, double-blind study will evaluate cervical tissue changes after three 6 mg doses of VGX-3100 are administered by injection in combination with Inovio’s CELLECTRA® electroporation delivery device. A total of 148 patients will be enrolled in 25 study centers in the US, Korea, South Africa, Australia, and Canada.

The primary endpoints of this study are to assess regression of cervical lesions to CIN 1 or less and clearance of HPV 16 or 18. The study will evaluate the efficacy of the vaccine in patients who receive VGX-3100 at 0, 4 and 12 weeks compared to placebo recipients, based on a biopsy performed six months after the final vaccine dose.

The study will also explore humoral and cell mediated immune responses to VGX-3100 in blood samples taken prior to the first vaccine dose and periodically thereafter. Cervical samples will be analyzed for evidence of immune responses in the cervix at the beginning of the trial and subsequent intervals. Subjects will also be monitored for tolerability and safety. The clinical trial protocol, HPV-003, is available here.

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