Lobby MPs to stop the puberty-blockers trial

Thank you to everyone who joined us on 10th March.

The planned puberty-blockers trial has been paused, pending the review of concerns raised by one of the regulators, the Medicines and Healthcare products Regulatory Agency (MHRA). But it needs to be cancelled. Now is the time to tell your MP what this trial really means, and why there are much better ways to help distressed children. Blocking their puberty should never be an option.

More than 250 people have already signed up to join us for Lobby Day at Parliament on Tuesday 10th March 2026 to call on parliamentarians to Do No Harm and Stop the Puberty Blocker Trial. If you are one of those people, we look forward to seeing you.

The deadline has passed to sign up to get briefing notes and a template email. But anyone can turn up and ask to see their MP on the day. 

Organisers from Sex Matters, LGB Alliance and the Women’s Rights Network (WRN) will be there to support you with advice for your meeting, briefings about where to go and what to do, and materials to give your MP. You’ll need to make your way to the Houses of Parliament in Westminster for the afternoon of Tuesday 10th March. 

(This will take you to the WRN website for more information)

If you haven’t already, please write to your MP to request a meeting. You can find the template at the bottom of the page where you register for the lobby day. Copy [email protected] into your correspondence and forward any replies you receive.