Kansas Attorney General Derek Schmidt is suing major drug manufacturers and pharmacy benefit managers for driving up the cost of insulin for Kansans. The Kansas News Service reports that almost 250,000 Kansans are diabetic and insulin prices have increased by more than 600% in the past 20 years. The filing claims the groups violated Kansas Consumer Protection Laws. It alleges that the insulin manufacturers worked with the pharmacy benefit managers to raise prices and that was rewarded with financial kickbacks. Eli Lilly responded to a similar lawsuit filed in Arkansas saying the claims were inaccurate and that the company offers several affordable solutions. This is the second lawsuit about drug prices in the state to come out of an ongoing investigation.