The NIH's NCATS program is working to help link researchers with potential therapies sitting on their shelves with medical conditions and pipelines to make them available. Sometimes a molecule is developed and studied for one problem and turns out to be ineffective. That doesn't mean that molecule might not be helpful to some other medical condition. As an extra bonus, much of the research work has already been done on these potential drugs.
We don't know if this will ever help a disease like Hermansky-Pudlak Syndrome or Chediak-Higashi Syndrome, but you never know. We will never know without a program like this!
Check out this very short and easy to understand video about the program.