Generally this is the answer when there's an announcement like this. Some early paper or analysis showed some (often weak but potentially very interesting) corr

Generally this is the answer when there's an announcement like this. Some early paper or analysis showed some (often weak but potentially very interesting) correlation between $new_drug and $scary_disease/$scary_disorder. Doctors and scientists go off and study that in more depth with better controls or more data points and we learn a little more about the world, if you miss the initial paper(s) the follow up can seem a little random.