AHRQ and FDA to Collaborate in Largest Study Ever of Possible Heart Risks with ADHD M...( ROCKVILLE Md. Sept. 17 -- Two U....),Health

ROCKVILLE, Md., Sept. 17 /PRNewswire-USNewswire/ -- Two U.S. Department of Health and Human Services agencies will collaborate in the most comprehensive study to date of prescription medications used to treat attention deficit hyperactivity disorder (ADHD) and the potential for increased risk of heart attack, stroke or other cardiovascular problems.

Researchers supported by the Agency for Healthcare Research and Quality and the U.S. Food and Drug Administration will examine the clinical data of about 500,000 children and adults who have taken medications used to treat ADHD to determine whether those drugs increase cardiovascular risks.

Because medications used to treat ADHD can increase heart rate and blood pressure, there are concerns about the drugs' potential to increase cardiac risks. It is also thought these risks may be different for adults and children, but more evidence is needed about the long-term effects of using ADHD medications.

The planned analysis follows an FDA-sponsored preliminary study that compiled information from large health care databases on prescription drug use, inpatient care, outpatient treatment, and health outcomes, including death. Based on that effort, researchers identified people who took ADHD drugs during a 7-year period ending in 2005. AHRQ, which sponsors research on clinical effectiveness and safety, will team with FDA to complete the analysis of the data.

"This study highlights one of AHRQ's most important missions: to collect and analyze scientific evidence that will help patients, policymakers, and clinicians make the best possible decisions," said AHRQ Director Carolyn M. Clancy, M.D. "This partnership with the FDA is a great way to move closer to answering important clinical questions that affect children and adults who have ADHD."

"Case reports have described adverse cardiovascular events in adult and pediatric patients with certain underlying risk factors who receive drug treatment for
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