A federal jury in New Orleans handed Merck & Co. a major victory on Friday, clearing the drug maker of any responsibility in the death of a 53-year-old Florida man who had a heart attack after taking its once popular painkiller Vioxx for less than a month.

This was the second court victory for Merck, and the first in a federal court. The company had argued in this case that plaintiff lawyers never proved any link between Vioxx and the heart attack Richard “Dickey” Irvin suffered in 2001. Merck’s lawyers contended Irvin’s age, gender and diet all put him at risk for heart attacks