The Health Secretary made a ban on puberty blockers indefinite in December last year.

Health Secretary Wes Streeting has said he is “not comfortable” with a clinical trial into puberty blockers.

He also claimed the windows in his constituency offices have been smashed three times by transgender activists and he has received “all sorts of threats” since the study was launched last month.

The trial follows recommendation by the Cass Review into children’s gender care, which concluded that the quality of research claiming to show the benefits of puberty blockers for youngsters with gender dysphoria was “poor”.

Around 226 children and young people could be recruited as part of a larger study known as Pathways.

Mr Streeting made a ban on puberty blockers indefinite in December last year.

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