Just a year ago, the public outrage was over Sovaldi, a new hepatitis C drug being sold by Gilead Sciences for $1,000 a pill, or $84,000 for a course of treatment. The drug was a true innovation, curing the disease in 12 weeks with few side effects. But so many people wanted treatment that the drug racked up sales of $10.3 billion in 2014, shattering the sales record for a first-year drug and straining the budgets of state Medicaid programs, private insurers, prisons and the Veterans Health Administration.