Yep, that one is further along than most, but for a different disease. Most of the other drugs have not been efficacy tested in humans at all, for any indication.
It is so terrible, that patients can only receive supportive care. It does seem to help, since the death rate from this outbreak is “only” about 60%, which is significantly lower than that seen in other outbreaks—up to 90%.
http://www.ncbi.nlm.nih.gov/pubmed/?term=favipiravir++ebola
Ebola Zaire.
If you were an African who had contracted e. Zaire would you particularly care if it were a ‘mouse model’ study?
I've read the 'low' death rate is because the infection is spreading: many new cases in the denominator haven't had it long enough to die and show up in the numerator.