Dr Caroline Johnson

Dr Caroline Johnson

Conservative — Sleaford and North Hykeham

Speaking in the House of Commons on 17 December 2025

Debate

Puberty Suppressants Trial

Contribution

I must first declare my interest as a consultant paediatrician who has looked after children with gender dysphoria in the past and is likely to do so in the future. We must remember that we are talking about vulnerable children. The first and most obvious question is: why? Why have this Government chosen to fund experiments with puberty blockers on physically healthy children? Despite saying he was comfortable with this trial in a briefing to MPs, the Secretary of State told the media on Friday and the Select Committee this morning that he is in fact uncomfortable with it. Why is it even being considered before the data linkage study is complete? Some 9,000 children went through the Tavistock clinic, and many of them came out regretting being encouraged to irreversibly damage their bodies. We should look carefully at those outcomes before we make the same mistakes. What steps is the Secretary of State taking to secure the data from the Tavistock and have it analysed? What steps is he taking to hold to account those obstructing access to data linkage information? What assessment has he made of the motivations of those obstructing that data, when this is a study to safeguard children? And what of the trial itself? We know that 226 children will go through this trial. Is that a limit or a target? Those children will be randomised to get puberty blockers now or in a year’s time, and all will be analysed at two years. They will still be children. They might be only 11 years old. How can the results demonstrate a meaningful outcome? The control group is not properly randomised, but chosen from the Horizon intensive trial group. Is the Secretary of State concerned that this will introduce bias? The criteria for getting puberty blockers in this trial require just one parent to consent and the clinician to think that it will benefit the child, but on what basis will the clinician decide? The Cass review said that the vast majority of children with gender dysphoria would recover, with only a few persisting with trans identities into adulthood. It is not possible to predict which those children will be, so does the Secretary of State accept that the vast majority of children in this, his Streeting trial, who will be given drugs will be physically healthy children whose distress would get better without any puberty blockers, and that the vast majority of the children in this trial are therefore being unnecessarily experimented on with risky medications under his leadership?

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