The two-year experiment on 226 children, all of whom will receive puberty blockers, either from the outset or after one year, is set to begin in January 2026. It will compare results with 300 “gender incongruent” children who did not take the drugs. The study is meant to assess the risk versus benefit of the blockers, which begs the question of why any parent would ever dream of allowing their children to be used in this manner at all.