> Those usually do not translate into results in humans.

Why would that be the case?

Because what works in animal studies doesn't often work in humans. This is why you hear about a novel cure for cancer in the news every month -- it's always animal studies.

If you want something to get your hopes up, look for stuff undergoing human studies. They're not new(s) -- in fact, it's stuff that is known and has shown promise for years -- but they're more likely to eventually work.