A report by pharmacy benefits managing company Express Scripts shows a 13% increase in the price of branded drugs in the U.S. from Sept 2011 to Sept 2012. Generic drug prices declined by 22% in this period. The report also shows that growing spending on specialty drugs for cancer, MS and other diseases is a big reason for the increase in prices of branded drugs. This report is from a random sample of six millon Express Scripts members using prescription drug coverage. Prof. Schondelmeyer of the University of Minnesota, who manages the drug benefits program at the university and conducts a similiar price report for AARP, says the potential benefits for these specialty drugs are not that good to justify the high prices.