Dr Caroline Johnson

Dr Caroline Johnson

Conservative — Sleaford and North Hykeham

Speaking in the House of Commons on 23 June 2026

Debate

Puberty Blockers

Contribution

I beg to move, That this House calls on the Government to take steps to prevent the PATHWAYS clinical trial into the effect of puberty suppressing hormones on children with gender incongruence. Before I start, I declare an interest as an NHS consultant paediatrician, a member of the Royal College of Paediatrics and Child Health, and a member of the British Medical Association. It is also important for us to recognise at the beginning of this debate that we are talking about the protection of children—vulnerable children who are troubled, and who need our care and compassion and the very best quality of healthcare. The healthcare of children distressed about their gender is an area in which attempts have been made to shut down debate with threats and accusations of transphobia; we saw the way that the hon. Member for Canterbury (Rosie Duffield) was treated when she raised concerns. As adults and as elected Members of this House, we have a duty to safeguard children in our country. That means protecting them from adults who—with whatever motivation, good or bad—could do them harm. As a children’s doctor, I have recruited patients for trials, and I have cared for children and babies participating in clinical trials. I recognise the value of a well-designed clinical trial in improving clinical care, but today the House is not being asked to consider the principle of performing clinical trials in general, or on children in particular—I hope we can all agree that a well-designed trial can improve care. Rather, we are being asked to consider the Pathways trial: whether it meets ethical tests, what it does, the cohort, the protocol and the consent. I will go through each of those points in turn. The Pathways trial is part of a group of studies run by King’s College London and funded by the Government. So what does it do and why are we so concerned? The trial will take 226 children who are physically healthy—who are developing normally—and inject them with powerful drugs to delay that normal development in a way that may weaken their bones, affect their ability to think, damage their sexual function, and leave them unable to have children of their own. We are told that the purpose of this is to treat a diagnosis of gender incongruence. So what is gender incongruence? The International Classification of Diseases states that it is “characterised by a marked and persistent incongruence between an individual’s experienced gender and the assigned sex, which often leads to a desire to ‘transition’”. We know that gender incongruence is a condition that is subjective. It is based on how someone tells us they feel. There are no blood tests and no lab markers that can be used to diagnose it. As a paediatrician myself, I understand that how patients feel, particularly in relation to their mental health, is very important. We know from the Cass review that the vast majority of children with gender incongruence will get better on their own. Again, as a paediatrician, I am used to providing supportive treatment for conditions such as respiratory viruses and gastroenteritis, which generally get better on their own, but I am not used to giving powerful drugs to children that can cause permanent long-term damage for subjective, self-resolving difficulties during adolescence.

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