A high court judge has thrown out a legal challenge to a King's College London clinical trial of puberty-delaying drugs in children, allowing the research to proceed.
Key facts
- A high court judge rejected a legal challenge to the trial on Friday.
- The trial will study puberty blockers, drugs that can delay puberty.
- The research is to be run by researchers at King's College London (KCL).
- Campaigners had sought to halt the trial on the grounds it could harm participating children.
A clinical trial of drugs that can delay puberty in children can go ahead after a high court judge dismissed a legal challenge on Friday, according to the Guardian.
Campaigners had launched the legal attempt to stop the planned research, which is to be run by researchers at King’s College London (KCL). They argued that the trial could harm the children who take part in it.
The drugs at the centre of the study are puberty blockers, which can delay the onset of puberty. The judge’s decision means the King’s College London research study can now proceed.
The legal challenge specifically claimed the study could harm participants, but the court rejected that argument, clearing the way for the trial to move forward.
The Guardian reported the ruling on 31 July 2026. Beyond the dismissal of the challenge and the identity of the research institution, further details of the trial’s design and timeline were not specified in the available reporting.
Why it matters
Puberty blockers for children have been the subject of intense public and legal debate, and the outcome of this challenge affects whether new clinical evidence can be gathered. The ruling determines whether the King's College London study can proceed despite objections from campaigners.
Frequently asked questions
Who is running the puberty blockers clinical trial?
The research study is being run by researchers at King's College London (KCL), according to the Guardian.
Why did campaigners try to stop the trial?
Campaigners launched a legal challenge because they believed the trial could harm the children taking part in it.
What did the high court decide?
A high court judge threw out the legal challenge on Friday, clearing the way for the clinical trial to go ahead.