Puberty blockers clinical trial paused after ‘new concerns’ from regulator

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By Stanley Murphy-Johns, PA

A clinical trial into puberty blockers for children has been paused after the medicines regulator warned it should have the minimum age limit raised from 10 to 14 because of the “unquantified risk” of “long-term biological harms”.

The Medicines and Healthcare products Regulatory Agency (MHRA) will now discuss the concerns, related to the wellbeing of children and young people, with trial sponsor King’s College London this week and recruitment to the trial will not start until the issues have been resolved.