MOUNTAIN VIEW, Calif., Oct. 8, 2013 (GLOBE NEWSWIRE) -- VIVUS, Inc. (Nasdaq:VVUS) today announced new data published online in Diabetes Care demonstrating the effects of Qsymia® (phentermine and topiramate extended-release) capsules CIV, on the progression to type 2 diabetes.
In the study, high-risk overweight or obese patients with prediabetes and/or metabolic syndrome who were taking Qsymia over a two year period experienced reductions of up to 78.7% in the annualized incidence rate of type 2 diabetes, in addition to losing weight. The American Association of Clinical Endocrinologists recognizes obesity and prediabetes as significant risk factors for progression to diabetes and associated complications.
"These data demonstrate that medically-assisted weight loss is highly effective in preventing progression to diabetes in an at-risk population, and underscores the observation that 10% weight loss achieves beneficial effects on metabolism and risk factors in patients with prediabetes and metabolic syndrome," said Timothy Garvey, MD, Chairman of the Department of Nutrition Sciences, University of Alabama at Birmingham, the lead author and an endocrinologist specializing in metabolic diseases.
The publication analyzed 475 high-risk overweight or obese patients with prediabetes and/or metabolic syndrome at baseline from the two-year SEQUEL study, for their progression to type 2 diabetes and their changes in cardiometabolic parameters. After 108 weeks, it was observed that patients receiving Qsymia, in conjunction with lifestyle modifications, experienced significant weight loss along with markedly reduced progression to type 2 diabetes and improvements in multiple cardiometabolic disease risk factors.
Subjects in the Qsymia Recommended dose (7.5mg/46mg) and Top dose (15mg/92mg) treatment groups experienced reductions of 70.5% and 78.7% in the annualized incidence rate of type 2 diabetes, respectively, versus placebo, which was related to degree of weight lost (10.9% and 12.1%, respectively, versus 2.5% with placebo; ITT-MI; P<0.0001). Qsymia therapy was well tolerated by this subgroup over two years.
Among patients in the study taking Qsymia, common adverse events included paraesthesia (tingling in the fingers or feet), sinusitis, dry mouth, constipation, headache, and dysgeusia (change in perception of taste). The types and severity of adverse events seen in this subgroup analysis were similar to those seen in the overall SEQUEL patient population and in other clinical trials.
According to the American Diabetes Association, an estimated 79 million people have prediabetes and nearly two million will develop type 2 diabetes each year. Millions more are known to have metabolic syndrome, a cluster of symptoms that includes high blood pressure, large waist size, high levels of fats in the blood, and the body's inability to handle glucose, which collectively increase a person's chances of developing cardiovascular disease. Qsymia is not currently indicated for the treatment of hypertension, type 2 diabetes mellitus, prediabetes, stroke or heart disease.
Earlier this year, the American Association of Clinical Endocrinologists issued a new algorithm for the comprehensive management of weight in persons with prediabetes or type 2 diabetes in order to provide clinicians with a practical guide that considers the whole patient, the spectrum of risks and complications for the patient, and evidence-based approaches to treatment. In addition to advocating for glycemic control, the treatment algorithm focuses on obesity and prediabetes as the underlying risk factors for diabetes and associated complications.
About the Study
Study Authors: W. Timothy Garvey, MD; Donna H. Ryan, MD; Robert Henry, MD; Nancy J.V. Bohannon, MD; Hermann Toplak, MD; Michael Schwiers, MS; Barbara Troupin, MD; Wesley W. Day, PhD
Title: "Prevention of Type 2 Diabetes in Subjects With Prediabetes and Metabolic Syndrome Treated With Phentermine and Topiramate Extended-Release"
Qsymia® (phentermine and topiramate extended-release) capsules CIV is approved in the U.S. and is indicated as an adjunct to a reduced-calorie diet and increased physical activity for chronic weight management in adults with an initial body mass index (BMI) of 30 kg/m2 or greater (obese) or 27 kg/m2 or greater (overweight) in the presence of at least one weight-related medical condition such as high blood pressure, type 2 diabetes, or high cholesterol.
The effect of Qsymia on cardiovascular morbidity and mortality has not been established. The safety and effectiveness of Qsymia in combination with other products intended for weight loss, including prescription and over-the-counter drugs, and herbal preparations, have not been established.
Important Safety Information
Qsymia (phentermine and topiramate extended-release) capsules CIV is contraindicated in pregnancy; in patients with glaucoma; in hyperthyroidism; in patients receiving treatment or within 14 days following treatment with monoamine oxidase inhibitors (MAOIs); or in patients with hypersensitivity to sympathomimetic amines, topiramate, or any of the inactive ingredients in Qsymia.
Qsymia can cause fetal harm. Females of reproductive potential should have a negative pregnancy test before treatment and monthly thereafter and use effective contraception consistently during Qsymia therapy. If a patient becomes pregnant while taking Qsymia, treatment should be discontinued immediately, and the patient should be informed of the potential hazard to the fetus.
The most commonly observed side effects in controlled clinical studies, 5% or greater and at least 1.5 times placebo, include paraesthesia, dizziness, dysgeusia, insomnia, constipation, and dry mouth.
VIVUS is a biopharmaceutical company commercializing and developing innovative, next-generation therapies to address unmet needs in obesity, sleep apnea, diabetes and sexual health. For more information about the company, please visit www.vivus.com.
Certain statements in this press release are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995. These statements may be identified by the use of forward-looking words such as "anticipate," "believe," "forecast," "estimate," "expect," "intend," "likely," "may," "plan," "potential," "predict," "opportunity" and "should," among others. There are a number of factors that could cause actual events to differ materially from those indicated by such forward-looking statements. VIVUS does not undertake an obligation to update or revise any forward-looking statements. Investors should read the risk factors set forth in VIVUS's Form 10-K for the year ending December 31, 2012, as amended by the Form 10-K/A filed on April 30, 2013 and by the Form 10-K/A filed on June 12, 2013, and periodic reports filed with the Securities and Exchange Commission.
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