Phenylketonuria Trial, Recruiting NCT07728032 Sponsor: Birmingham Women's and Children's NHS Foundation Trust Condition: Phenylketonuria
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Phenylketonuria Trial, Recruiting

NCT07728032
Recruiting Not Applicable

Who may be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who might be able to join this trial:

Children and teenagers with PKU:

  • Children and teenagers aged 3 to 17 years old
  • People who were diagnosed with phenylketonuria (PKU) through newborn screening
  • People who are currently receiving ongoing medical care for PKU
  • For the diet-only group: people whose PKU is managed through a special low-phenylalanine diet alone, without taking the medications sapropterin or sepiapterin
  • For the sapropterin group: people who have been taking the medication sapropterin for at least three months in a row, and whose ability to eat natural protein has at least doubled compared to before starting the medication
  • For the sepiapterin group: people who have been taking the medication sepiapterin for at least three months in a row, and whose ability to eat natural protein has at least doubled compared to before starting the medication

Healthy household members (controls):

  • People aged 3 years or older who live in the same household as a child or teenager participating in the trial with PKU
  • People with no known diagnosis of PKU or any other inherited metabolic condition

Who may not be able to join:

  • People who were born with structural physical abnormalities (congenital malformations)
  • People who have a long-term condition affecting the digestive system
  • People who have a condition affecting the hormone system, liver, or kidneys
  • People who have another ongoing medical condition that could affect the balance of bacteria in the gut
  • People who have followed a special medical diet for any condition other than PKU at any point in the six months before providing a stool sample

Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 28 July 2026
This study is not part of the standard drug-approval phase pathway (for example an observational, device, behavioural, or registry study), so a phase success rate does not apply.

Contact this trial

Principal Investigator: Anita MacDonald, PhD, Birmingham Children's Hospital

Phone: +44 121 333 9999

Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.

GP referral letter

Print a one-page summary to share with your doctor.

Trial details

Status
Recruiting
Phase
Not Applicable
Sponsor
Birmingham Women's and Children's NHS Foundation Trust
Registry
ClinicalTrials.gov
Start date
1 October 2025
Est. completion
1 December 2026

Where this trial is recruiting

🇬🇧 United Kingdom

Primary endpoints

Faecal gut microbiota taxonomic composition assessed by shotgun metagenomic sequencing

Can't join this trial?

Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov