Not sure what sort of evidence you're looking for. There are certainly approved life-saving and other valuable drugs. If they had been approved sooner they woul

Not sure what sort of evidence you're looking for. There are certainly approved life-saving and other valuable drugs. If they had been approved sooner they would have had a greater benefit. There is an institutional bias towards avoiding costs due to approving a bad drug versus delaying approval and incurring unseen costs.