Just something to think on: Purisol first got the attention of Menon while perusing papers on the side effects of an AIDS drug. The interesting effect, the drug seemed to have a correlation with psoriasis symptom improvement.
So, the correlation was further tested for in mice studies. And, the results supported the benefical correlations in an astonishing way.
The original AIDS drug, reformulated for psoriasis, named Purisol.
So, from humans, to mice, and now back to humans. Point being, Purisol effects initially were spotted in humans. Although, the first human observations needed further research and testing.
So, here we are. And, management remains confident. Never a sure bet with new drug testing; but, Purisol definitely a good bet.