Limited Phase I and Phase II human trials have looked at thymosin beta-4 for cardiac and wound-healing endpoints
10.1016/S0079-6123(01)32073-3 185 RitzelR
That is, Aromasin prevents the enzymes that bind to it from rebounding in quantity after its use is discontinued, so it is different from Arimidex or Letrozole
None of this means BPC-157 will never work in humans
The next stage of this work will be to test these associations in further cohorts, including from different countries. This work was supported by Cancer Research UK, UK Medical Research Council, Wellcome, and a Nuffield Department of Population Health Early Career Research Fellowship grant
In addition to metabolizing bilirubin and certain anti-cancer drugs in the liver, the alpha class of these enzymes exhibit glutathione peroxidase activity, thereby protecting the cells from reactive oxygen species and the products of peroxidation