A new treatment that helps people with hemophilia A maintain higher levels of a crucial blood clotting factor with fewer treatments is a victory for patients, according to a new editorial in The New England Journal of Medicine this week by Dr. Cindy Leissinger, director of the Louisiana Center for Bleeding and Clotting Disorders at Tulane University School of Medicine. An estimated 20,000 people in the U.S. have hemophilia A, including almost 300 in Louisiana.