With the occupancy test arguably CDY could try to experiment by trying to blockade completely the CCR5 receptors for some time and mesure the virologic load re-appearance.
It could possibly be that a "full coverage" of CCR5 (by reasonable overload since it is safe) for some time can eliminate the virus completely, not being able to recruit more CD4+ cells.
I appreciate the reply. The immune system is a complicated animal - especially when you start studying complements and the like. I have a very basic understanding of the immune system and infectious diseases, so I was curious if PRO-140 could work beyond just a functional cure for HIV. Looks like I’m not the only one with that curiosity. Good luck to you!