Decision Resources, one of the world's leading research and advisory firms for pharmaceutical and healthcare issues, finds that although surveyed primary care physicians (PCPs) are generally satisfied with the efficacy of available phosphodiesterase type 5 (PDE5) inhibitors such as Pfizer's Viagra, Eli Lilly's Cialis and Bayer Healthcare/Schering-Plough/GlaxoSmithKline's Levitra, they are less satisfied with the efficacy of this drug class in difficult-to-treat patient subpopulations. PCPs' satisfaction with available PDE5 inhibitors on key measures of clinical efficacy suggests that opportunity exists for improvement in the treatment of erectile dysfunction patients with comorbid conditions such as hypertension and diabetes.

The new report entitled Erectile Dysfunction: Physicians Seek Improvements in Efficacy for Underserved Patients and Product Differentiation on Onset and Duration of Action finds that a therapy that provides greater improvement in erectile function than Levitra in patients with hypertension and that is priced at a five percent discount to Levitra would earn a 50 percent patient share in the United States and a 40 percent patient share in Europe, according to surveyed U.S. primary care physicians and European general practitioners.

Additionally, while there are several second-generation PDE5 inhibitors in clinical trials for the treatment of erectile dysfunction, interviewed experts do not expect these agents to provide efficacy superior to that of currently marketed drugs in this class. The report also finds that limited reimbursement for erectile dysfunction drugs and the availability of less-expensive generic versions of Viagra beginning in 2012, will constrain the uptake of emerging PDE5 inhibitors.

"Most therapies for erectile dysfunction do not qualify for reimbursement by third-party payers," said Decision Resources Analyst Kathryn Benton, B.S. "As a result, many patients pay out-of-pocket for treatment -- this will be among the factors that will cause premium-priced emerging therapies to struggle to capture market share."

About the Report

Erectile Dysfunction: Physicians Seek Improvements in Efficacy for Underserved Patients and Product Differentiation on Onset and Duration of Action is a DecisionBase 2009 report. DecisionBase 2009 is a decision-support tool that provides in-depth analysis of unmet need, physician expectations of new therapies and commercial dynamics to help pharmaceutical companies optimize their investments in drug development.

The report can be purchased by contacting Decision Resources. Members of the media may request an interview with an analyst.

About Decision Resources

Decision Resources is a world leader in market research publications, advisory services and consulting designed to help clients shape strategy, allocate resources and master their chosen markets. Decision Resources is a Decision Resources, Inc. company.

About Decision Resources, Inc.

Decision Resources, Inc. is a cohesive portfolio of companies that offers best-in-class, high-value information and insights on important sectors of the healthcare industry. Clients rely on this analysis and data to make informed decisions.

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Source: Decision Resources