Late stage use is not expected to do well.
We have people here who wrongly believe it is great for late-stage use, and others who believe it likely can't help at any stage.
Apparently, they are wrong.
Earlier is better, but it does work well for late stages too.
The ptb set up the studies to fail by using ivermectcin as a late phase treatment and without the rest of the protocol. The studies were useless and designed to fail.