Puberty Suppressants Trial

Baroness Cass Excerpts

Thursday 18th December 2025 Lords Chamber

[Baroness Merron (Lab)]

I thank the noble Lord. Before participants enter the trial—and it is an extremely high bar, as it should be; there will be at least 226 participants required, but that is not a target and there will be no drive to get up to that number—certainly any possible impacts such as those the noble Lord describes will be fully discussed and mitigations will be explained and made available, particularly in terms of fertility. I absolutely take the point that the noble Lord raises.

[Baroness Cass (CB)]

My Lords, we are faced with a situation where, for 15 years, clinicians in this country have told children and young people that these medications are safe, fully reversible and indeed life-saving. Last year, they were rightly banned from clinical practice. However, the upshot is that now, of the 75 children a month who are coming to the new services, about 20% are getting these medications and, worse, testosterone and oestrogen from unlicensed and unregulated sources—and those are the ones we know about. In addition, referrals to the new services have dropped from 200 a month to only 30 a month, so we think that a large number of those young people are also being harmed through those mechanisms.

We are concerned about this much broader harm; children are voting with their feet now. Does the Minister agree with me that, for the very tiny number of young people who clinicians believe will ultimately have a long-standing gender incongruence and will therefore be eligible for this trial, it is better that they get their medication under careful clinical supervision rather than on the dark web? Secondly, does she think that this trial will be a way of attracting that broader group of young people back into the NHS who do not need medical treatment but need holistic wraparound care?

[Baroness Merron (Lab)]

Let me first say to the noble Baroness how grateful we are for her continued professional attention and sensitivity in dealing with this. There was a cross-party approach to the Cass review, and I pay tribute to Sir Sajid Javid, the former Health Secretary for seeing the need for this. We have always been supportive of the Cass review. I agree with both points that the noble Baroness has made. The fact is that this is about the need to face up to what the review found: shocking levels of unprofessionalism, a lack of clinical oversight and puberty blockers being prescribed to children without sufficient evidence. That was not safe and not beneficial and it could not go on.