The Psychosocial Functioning of Adults With Phenylketonuria.

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Conditions studied: Phenylketonuria (PKU)

In brief

Current recommendations are to maintain Phe levels \< 360 µmol/L throughout life (US consensus) or \< 600 µmol/L from the age of 12 (European consensus). Nevertheless, these recommendations do not take into account the individuality of each PKU patient who, in reality, reacts differently to Phe levels, with some patients with high levels (\> 1200 µmol/L) escaping the neurological consequences of high Phe levels without this being well understood (OJRD 2018; 13: 149. Can untreated PKU patients escape from intellectual disability? A systematic review). It is therefore unclear what blood levels of phenylalanine are required during adolescence and adulthood to maintain an optimal cognitive, emotional and neurophysiological state in individual PKU patients, depending on their personal responsiveness to Phe.

Key facts

Study ID
NCT07406009
Run by
Central Hospital, Nancy, France
People needed
30
Starts
2026-01-15
Expected to finish
2027-06-15
Last updated by the study team
2026-02-12

Who can join

Age: 18 and older, up to 59. Sex: any. Healthy volunteers: accepted.

You may qualify if…

You may not qualify if…

Full record on ClinicalTrials.gov

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