Conditions included open-label drug use, without a placebo control or randomization. In lieu of a placebo control group, for comparison the control(s) consisted of published SOC patient results that were not administered the dual-histamine receptor blockade from the USA, United Kingdom, and China.
I think further placebo controlled double blind study is warranted before any conclusions can be drawn that this treatment is effective.
https://www.google.com/amp/s/www.wsj.com/amp/articles/edward...