BioSante Pharmaceuticals LibiGel Safety Study to Continue Following Review by External Executive Committee

BioSante Pharmaceuticals LibiGel Safety Study to Continue Following Review by External Executive Committee

LINCOLNSHIRE, Ill.--(BUSINESS WIRE)--BioSante Pharmaceuticals, Inc. (NASDAQ: BPAX - News), is pleased to announce that based upon a review of study conduct and blinded data from the LibiGel Phase III Cardiovascular and Breast Cancer Safety Study, the LibiGel Safety Study External Executive Committee has recommended continuation of the LibiGel Phase III clinical program. A very low cardiovascular event rate has occurred thus far in the LibiGel Phase III clinical studies.

"Based on the trial data to date, we are confident that the LibiGel Cardiovascular and Breast Cancer Safety Study should continue to enroll new subjects and maintain treatment of those subjects already randomized to therapy. At this point, we feel that the conduct of the study has been excellent and that the adverse event rates are exceptionally low in the trial - both from a cardiovascular and general safety standpoint," said Dr. William B. White, Chairman of the Safety Study External Executive Committee and Professor and Attending Physician, in the Calhoun Cardiology Center, University of Connecticut Health Center, Farmington.

The Executive Committee evaluated study information from over 1,000 women enrolled totaling approximately 600 women-years of exposure in the Phase III LibiGel safety study. All serious adverse events including those in the cardiovascular categories as well as non-serious adverse events have been reviewed by the committee.

"Our objective continues to be to submit a new drug application (NDA) to the U.S. FDA by the end of 2010 or in early 2011," said Dr. Michael Snabes, BioSante's vice president of clinical development. "We are heartened by the reassuring safety data to date in the three LibiGel Phase III clinical studies including the very important cardiovascular and breast cancer safety study. LibiGel remains the only pharmaceutical product in the U.S. in active development for the treatment of hypoactive sexual desire disorder (HSDD) in menopausal women. We continue to believe that LibiGel can be the first product approved by the FDA for this common and unmet medical need also referred to as female sexual dysfunction (FSD)."

The Phase III Cardiovascular and Breast Cancer Safety Study is a randomized, double-blind, placebo-controlled, multi-center, cardiovascular events and breast cancer study that will enroll between 2,400 and 3,100 women exposed to LibiGel or placebo for 12 months. An NDA can be filed and reviewed by FDA, possibly leading to approval of LibiGel, at that time. After NDA submission and potential approval of LibiGel, BioSante will continue to follow the women enrolled in the study for an additional four years.

The LibiGel safety study is tracking a list of cardiovascular events including cardiovascular death, myocardial infarction and stroke in women 50 years of age or older and suffering from at least two cardiovascular risk factors including hypertension and diabetes. The objective of the safety study is to show the relative safety of testosterone compared to placebo in the number of cardiovascular events. The incidence of breast cancer also will be tracked over the course of the study.

In addition to the Phase III cardiovascular and breast cancer safety study, BioSante is conducting two LibiGel Phase III efficacy trials. The Phase III efficacy trials of LibiGel in the treatment of FSD are double-blind, placebo-controlled trials that will enroll up to approximately 500 surgically menopausal women each for a six-month clinical trial. The efficacy trials are being conducted under an FDA approved SPA (special protocol assessment agreement).

As previously announced by BioSante, treatment with LibiGel in a Phase II clinical trial significantly increased satisfying sexual events in surgically menopausal women suffering from FSD. The Phase II trial results showed LibiGel significantly increased the number of satisfying sexual events by 238 percent versus baseline (p<0.0001); this increase also was significant versus placebo (p<0.05). In this study, the effective dose of LibiGel produced testosterone blood levels within the normal range for pre-menopausal women and had a safety profile similar to that observed in the placebo group. In addition, no serious adverse events and no discontinuations due to adverse events occurred in any subject receiving LibiGel. The Phase II clinical trial was a double-blind, placebo-controlled trial, conducted in the United States, in surgically menopausal women distressed by their low sexual desire and activity.

About BioSante Pharmaceuticals, Inc.

BioSante is a specialty pharmaceutical company focused on developing products for female sexual health, menopause, contraception and male hypogonadism. BioSante's lead products include LibiGel® (transdermal testosterone gel) in Phase III clinical development by BioSante under a U.S. Food and Drug Administration (FDA) SPA (Special Protocol Assessment) for the treatment of female sexual dysfunction (FSD), and ElestrinTM (estradiol gel) developed through FDA approval by BioSante, indicated for the treatment of moderate-to-severe vasomotor symptoms associated with menopause, currently marketed in the U.S. Also in development are Bio-T-GelTM, a testosterone gel for male hypogonadism, and an oral contraceptive in Phase II clinical development using BioSante patented technology. The current market in the U.S. for estrogen and testosterone products is approximately $2.5 billion and for oral contraceptives approximately $3 billion. The company also is developing its calcium phosphate technology (CaP) for novel vaccines, drug delivery and aesthetic medicine (BioLookTM). Additional information is available online at: www.biosantepharma.com.

This news release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The statements regarding BioSante contained in this news release that are not historical in nature, particularly those that utilize terminology such as "will," "potential", "could," "can," "believe," "intends," "continue," "plans," "expects," "estimates" or comparable terminology, are forward-looking statements. Forward-looking statements are based on current expectations and assumptions, and entail various risks and uncertainties that could cause actual results to differ materially from those expressed in such forward-looking statements. Important factors known to BioSante that could cause actual results to differ materially from those expressed in such forward-looking statements include BioSante's need for and ability to obtain additional financing, the difficulty of developing pharmaceutical products, obtaining regulatory and other approvals and achieving market acceptance; the marketing success of BioSante's licensees or sublicensees; the success of clinical testing, and other factors identified and discussed from time to time in BioSante's filings with the Securities and Exchange Commission, including those factors discussed in BioSante's most recent annual report on Form 10-K,which discussions also are incorporated herein by reference. All forward-looking statements speak only as of the date of this news release. BioSante undertakes no obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

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