The launch of a controversial trial that planned to test puberty blockers on transgender children was dramatically halted over safety concerns last night. Puberty blockers were indefinitely banned by Mr Streeting after the Commission on Human Medicines said they posed 'an unacceptable safety risk'. The regulator has indicated it may wish to restrict the trial to children aged 14 and over. An MHRA spokesperson said: 'With all complex clinical trials, MHRA's top priority is the safety and wellbeing of the trial participants. 'We have raised some concerns related to the wellbeing of participants and scientific dialogue will now follow with the trial sponsor.

Source: Daily Mail February 21, 2026 11:37 UTC