POZEN'S PA32540 Associated with a Significantly Lower Rate of Endoscopic Gastroduodenal Ulcers as Co
POZEN'S PA32540 Associated with a Significantly Lower Rate of Endoscopic Gastroduodenal Ulcers as Compared to Aspirin Alone in Patients with Diabetes
Data Presented at the American Diabetes Association's 73 rd Scientific Session
CHAPEL HILL, N.C.--(BUSINESS WIRE)-- POZEN Inc.
"Patients with diabetes and prior cardiovascular events may require daily life-long treatment with aspirin," said John G. Fort, M.D., Chief Medical Officer of POZEN and co-author of the poster. "We are pleased that these findings support the use of an integrated tablet of omeprazole and aspirin as antiplatelet therapy for secondary cardiovascular prevention in diabetic patients at risk for gastric ulcers."
Diabetes is associated with an approximate 2-fold increased risk for cardiovascular disease, including non-fatal myocardial infarction and ischemic stroke. The American Diabetes Association Standards of Medical Care specifically recommend low-dose aspirin therapy for secondary cardiovascular disease prevention in patients with diabetes and a history of cardiovascular disease. Studies have shown that patients (including those with a history of diabetes) who experience upper gastrointestinal complications from aspirin therapy may stop treatment. Discontinuations or interruptions in aspirin therapy in cardiovascular disease patients have been reported to increase the risk of future cardiovascular events.
About the Phase 3 Studies
The two Phase 3, double-blind, randomized, multicenter studies enrolled 1,049 subjects who had been prescribed daily aspirin (325 mg) for greater than or equal to three months for secondary prevention of cardiovascular events. The primary endpoint was the cumulative observed incidence of gastric ulcers over six months. Secondary endpoints included cumulative incidence of gastric and duodenal ulcers, discontinuation due to pre-specified upper gastrointestinal (UGI) adverse events and heartburn resolution. Subjects were randomly assigned to once-daily treatment with PA32540 or 325 mg of enteric-coated aspirin. Endoscopic assessments were performed at screening and at one, three and six months. Major adverse cardiac events (MACE) were reviewed and adjudicated by an independent, blinded endpoint committee composed of Cardiologists.
Each study achieved its individual primary endpoint, and also met all secondary endpoints. Results from the combined data from the two studies demonstrated that patients on PA32540, compared to those on enteric-coated aspirin (325 mg), were able to stay on therapy longer due to fewer discontinuations due to any adverse events (6.7% vs. 11.2%). Discontinuations due to pre-specified UGI events were lower in subjects taking PA32540 compared to subjects taking enteric-coated aspirin (1.5% vs. 8.2%, p<0.001).
In the combined data from the two trials, 85.1% of subjects on enteric-coated aspirin (325 mg) reported adverse events compared to 71.8% of subjects on PA32540. The most commonly reported adverse events with PA32540 and enteric-coated aspirin (325 mg) were of the GI tract and include dyspepsia (11.3% vs. 30.2%), erosive gastritis (11.5% vs. 26.3%), and gastritis (17.5% vs. 16.0%), respectively. The incidence and nature of adjudicated MACE such as heart attacks was similar between the two treatment arms: 9 subjects (1.7%) on PA32540 experienced adjudicated MACE compared to 13 subjects (2.5%) on aspirin (325 mg).
POZEN is creating a portfolio of integrated aspirin therapies - the PA product platform. The products in the PA portfolio are intended to significantly reduce GI ulcers and other GI complications compared to taking enteric-coated or plain aspirin alone.
The first candidates are PA32540, containing 325 mg of aspirin, and PA8140, containing 81 mg of aspirin. Both products are a coordinated-delivery tablet combining immediate-release omeprazole (40 mg), a proton pump inhibitor, layered around a pH-sensitive coating of an aspirin core. This novel, patented product is administered orally once a day and an indication will be sought for use for the secondary prevention of cardiovascular disease in patients at risk for aspirin-induced gastric ulcers.
Proposed PA Indications and Usage (Pending FDA Review and Approval)
PA8140/PA32540 Tablets contain 81 mg or 325 mg delayed release aspirin and 40 mg immediate-release omeprazole and are indicated for patients who require aspirin (1) to reduce the combined risk of death and nonfatal stroke in patients who have had ischemic stroke or transient ischemia of the brain due to fibrin platelet emboli, (2) to reduce the combined risk of death and nonfatal MI in patients with a previous MI or unstable angina pectoris, (3) to reduce the combined risk of MI and sudden death in patients with chronic stable angina pectoris, (4) in patients who have undergone revascularization procedures (CABG, PTCA) when there is a pre-existing condition for which aspirin is already indicated, and to decrease the risk of developing gastric ulcers in patients at risk for developing aspirin-associated gastric ulcers.
Controlled studies with PA8140/PA32540 Tablets do not extend beyond 6 months.
About Cardiovascular Disease
Patients with established coronary heart disease or cerebrovascular disease have a high risk of a subsequent cardiovascular event including myocardial infarction (MI), stroke and death from cardiovascular disease. For such patients, lifestyle changes and drug therapy are of proven benefit and will improve outcomes. Coronary artery disease is caused by atherosclerosis and often develops into angina pectoris and MI. The condition caused about 445,000 deaths in 2005 and remains the leading single cause of death in America today. Roughly 16.8 million people have a history of MI and/or angina. An estimated 24 million have been identified as secondary prevention patients (post-event). It is estimated that cardiovascular disease causes one in every three deaths in the United States. Every 25 seconds, someone in the United States will suffer a coronary event. About every minute, someone will die from one.
POZEN Inc. is a small pharmaceutical company that specializes in developing novel therapeutics for unmet medical needs and licensing those products to other pharmaceutical companies for commercialization. By utilizing a unique in-source model and focusing on integrated therapies, POZEN has successfully developed and obtained FDA approval of two self-invented products in two years. Funded by these milestones/royalty streams, POZEN is now creating a portfolio of cost-effective, evidence-based integrated aspirin therapies designed to enable the full power of aspirin by reducing its GI damage.
POZEN is currently seeking strategic partners to help maximize the opportunities for its portfolio assets.
The Company's common stock is traded under the symbol "POZN" on The NASDAQ Global Market. For more detailed company information, including copies of this and other press releases, please visit www.pozen.com.
Statements included in this press release that are not historical in nature are "forward-looking statements" within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. You should be aware that our actual results could differ materially from those contained in the forward-looking statements, which are based on current market data and research (including third party and POZEN sponsored market studies and reports), management's current expectations and are subject to a number of risks and uncertainties, including, but not limited to, our inability to license our PA product candidates on terms and timing acceptable to us, our inability to file a new drug application with the FDA for our PA product candidates in the timeframe we anticipate, our failure to successfully commercialize our product candidates; costs and delays in the development and/or FDA approval of our product candidates, including as a result of the need to conduct additional studies, or the failure to obtain such approval of our product candidates, including as a result of changes in regulatory standards or the regulatory environment during the development period of any of our product candidates; uncertainties in clinical trial results or the timing of such trials, resulting in, among other things, an extension in the period over which we recognize deferred revenue or our failure to achieve milestones that would have provided us with revenue; our inability to maintain or enter into, and the risks resulting from our dependence upon, collaboration or contractual arrangements necessary for the development, manufacture, commercialization, marketing, sales and distribution of any products, including our dependence on AstraZeneca for the sales and marketing of VIMOVO ® ; competitive factors; our inability to protect our patents or proprietary rights and obtain necessary rights to third party patents and intellectual property to operate our business; our inability to operate our business without infringing the patents and proprietary rights of others; general economic conditions; the failure of any products to gain market acceptance; our inability to obtain any additional required financing; technological changes; government regulation; changes in industry practice; and one-time events, including those discussed herein and in our Quarterly Report on Form 10-Q for the period ended March 31, 2013. We do not intend to update any of these factors or to publicly announce the results of any revisions to these forward-looking statements.
Bill Hodges, 919-913-1030
Chief Financial Officer
Stephanie Bonestell, 919-913-1030
Manager, Investor Relations & Public Relations
KEYWORDS: United States North America North Carolina
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