- Reaction score
- 340
After god knows how many years of hiarloss research which featured control groups, don't we at this point know how the TAHC of Androgenetic Alopecia sufferers who receive placebo for x period of time behaves? Why does every new study need to recruit another group of people and give them nothing and track how their TAHC changes? Now, of course, studies vary in their length, but surely there have been a sufficient number of long lasting studies with control groups that could cover almost any length of time and for which raw data is available which could serve as historic controls. Isn't this just an unnecessary expense?