Effects of Palynziq on diet and health in patients with PKU

Palynziq and PKU: Treatment Impacts on Diet Quality, Neurological Health, Nutritional Status, and the Metabolome

Observational Emory University · NCT04404530

This study is testing how the medication Palynziq affects the diet and overall health of people with PKU who are 16 and older.

Quick facts

Study typeObservational
Enrollment45 (estimated)
Ages16 Years and up
SexAll
SponsorEmory University Academic / other
Locations2 sites (Atlanta, Georgia and 1 other locations)
Trial IDNCT04404530 on ClinicalTrials.gov

What this trial studies

This observational study investigates the nutritional impacts of Palynziq, a newly approved medication for patients with Phenylketonuria (PKU). It aims to assess changes in diet quality, neurological health, nutritional status, and patient perceptions of mental and social health among individuals receiving Palynziq therapy. By capturing these effects, the study seeks to provide insights into how this treatment can improve metabolic control and overall well-being for PKU patients. Participants must be 16 years or older and enrolled in the Palynziq Risk Evaluation and Mitigation Strategy program.

Who should consider this trial

Good fit: Ideal candidates are individuals aged 16 and older diagnosed with PKU who are prescribed Palynziq.

Not a fit: Patients unable to provide consent or those with psychiatric or other inherited metabolic disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved dietary flexibility and better health outcomes for patients with PKU.

How similar studies have performed: While there have been studies on dietary management in PKU, the specific impacts of Palynziq on nutritional and health outcomes are novel and not extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 16 years of age or older
* diagnosed with PKU through newborn screening or via diagnosis later in life
* capable of providing consent for medical tests and procedures
* prescription for Palynziq and be enrolled in the Palynziq Risk Evaluation and Mitigation Strategy (REMS) program
* Substudy: Participants must have completed visit 2 of the main study

Exclusion Criteria:

* unable to provide consent
* a diagnosis of, or take medication for psychiatric, behavioral, or other inherited metabolic disorders

Where this trial is running

Atlanta, Georgia and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Phenylketonurias
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.