Wes Streeting

Wes Streeting

Labour — Ilford North

Speaking in the House of Commons on 17 December 2025

Debate

Puberty Suppressants Trial

Contribution

Let me just start by acknowledging the sensitivities around this issue and the strong beliefs held around this House. For all the division and divided opinion, I believe that there is a determination shared by everyone in this House to do the right thing by a vulnerable group of children and young people. It is for those reasons that I am taking the course of action that I am. Put simply, that is to follow expert clinical advice and take an evidence-led approach. The Cass review found shocking levels of unprofessionalism, a lack of clinical oversight and puberty blockers prescribed to children without sufficient evidence that doing so was safe or beneficial to those children and young people. What Dr Hilary Cass uncovered was a scandal. That is why, on coming to office, I made the temporary ban brought in by my predecessor, the right hon. Member for Louth and Horncastle (Victoria Atkins), a permanent one. Dr Cass also recommended a thorough study to establish how best to support children and young people who suffer gender incongruence. That is the pathways study. The study has four main parts, one of which is the clinical trial to study the effects of puberty-suppressing hormones on young people’s physical, social and emotional wellbeing. The other aspects of the pathways study will track the physical, social and emotional wellbeing of all young people attending UK NHS gender services. It will look at young people’s thinking and brain development, following both those who are and are not taking puberty-suppressing hormones, and it will gather evidence directly from young people, parents and staff about their experiences of living with gender incongruence. The bar for the trial to be approved was extremely high and oversight will be rigorous. Children cannot consent to being on the trial, so places will require parental consent, as well as the assent of young people. It is because protecting and promoting the health and wellbeing of affected young people is our primary concern that there are also strict eligibility criteria in place to join the pathways clinical trial. As such, the number of young people who would expect to qualify for the trial will also be low. Participants must undergo thorough mental and physical assessments and will be followed over a number of years with regular wellbeing checks. Puberty blockers have also been used to delay puberty in children and young people who start puberty much too early. Use in those cases has been extensively tested and has met strict safety requirements for that use. The study is led by King’s College London and the South London and Maudsley NHS foundation trust. It has been carefully checked by independent scientists who advise the National Institute for Health and Care Research and by the Medicines and Healthcare products Regulatory Agency, and received approval from a research ethics committee. I am treading cautiously in this area because the safety of children must come first.

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