COLUMBUS, OH -- (MARKET WIRE) -- May 08, 2007 -- Ohio ranks best in the Midwest and among the top states in the nation for the number of actively recruiting clinical trials in the bioscience industry. The nation’s most comprehensive clinical trial information database, ClinicalTrials.gov, shows Ohio is home to nearly 1,600 active trials, making up 20 percent of all clinical trials conducted in the U.S.