What are the potential benefits of taking part?Early blocker treatment is reversible and does not have harmful effects on physical or psychological development.They absolutely did know that that claim is an unequivocal lie.Finally, in February 2024, Professor Sallie Baxendale, Professor of Clinical Neuropsychology at UCL, and Consultant Clinical Neuropsychologist at UCLH, has published, in pre-print, in Acta Paediatrica, “The Impact of Suppressing Puberty on Neuropsychological Function” (8); a review of the known studies exploring the effects of puberty blockers on neuropsychological function in mammals. Of the studies reviewed, 11 were on animals and 6 on humans. All papers indicated negative effects on cognitive development in the areas of interactions with the environment, responses to stress and performance on cognitive tasks, additionally, impairment in sexual function was noted; these negative effects were not fully reversible.It is, however, worth highlighting one of Baxendale’s references to a paper published by Mul et al 23 years ago (2001) (9). 25 girls were treated for precocious puberty and prescribed GnRHa (the licenced treatment in young people), and were tested on the Weschler Intelligence scales both before treatment and three years after treatment had commenced. An average decrease in IQ scores of 7 points was reported for the group and the girl with the highest IQ, 138, experienced a drop of 15 points to 123. Prompted by this, I noted the dates of Baxendale’s references demonstrating negative effects on neurological development and found that a significant number had been published by the time that the GIDS/PE study was recruiting participants between April 2011 and April 2014, including Mul et al (2001). I also scanned the references in the study’s published paper of February 2021 (3) for references to neurological development but found none.
They have no excuse, they cannot claim that they didn't know.