Clinical trials cost a lot of money, which someone has to pay for. Chloroquine is long out of patent and nobody has much incentive to run trials for it. It sho

Clinical trials cost a lot of money, which someone has to pay for. Chloroquine is long out of patent and nobody has much incentive to run trials for it. It should be the job of the NIH to sponsor trials for out-of-patent medicines, but they aren't very effective at it compared to pharma companies.