They did a trial, https://www.medrxiv.org/content/10.1101/2021.05.10.21256982v..., and it worked very well.
It's being commercialized here: https://www.apollohealthco.com/, and the guy has patents on everything.
Only 25 patients, not double-blind, no controls.
Only 25 patients, not double-blind, no controls.