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Understanding how phenylketonuria affects the brain, heart, metabolism, and gut from childhood to adulthood

Phenylketonuria: from childhood to adults through brain functional connectomics, cardiovascular changes, metabolomic and intestinal microbiota characteristics

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN12620764
Enrollment
130
Registered
2025-07-16
Start date
2020-06-01
Completion date
Unknown
Last updated
2026-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Phenylketonuria Nutritional, Metabolic, Endocrine

Interventions

Multicenter observational and controlled study for the cross-sectional analysis of both patients and age/sex-paired controls, either of pediatric and adult age. In the case of adult PKU patients, thos

Sponsors

Fundació La Marató de TV3
Lead Sponsor

Eligibility

Sex/Gender
All
Age
2 Years to 98 Years

Inclusion criteria

Inclusion criteria: Pediatric (<18 years old) and adult patients (=18 years old) with a genetic diagnosis of PKU or hyperphenylalaninemia (PKU group)

Exclusion criteria

Exclusion criteria: 1. Intelligence quotient below 70 according to the WAIS/WISC tests 2. Pregnancy or planning a pregnancy during the study period 3. Active cancer 4. Severe chronic hepatic disease 5. Acute cardiovascular event in the 6 months prior to study inclusion 6. Common MRI contraindications 7. Creatinine levels =2.0 mg/dL

Design outcomes

Primary

MeasureTime frame
1. Neurological impairment measured using neuropsychological tests (Behavior Rating Inventory of Executive Function for Adults (BRIEF-A), Arithmetic subtest, Vocabulary subtests from the Wechsler Adult Intelligence Scale – IV edition (WAIS-IV)) at baseline, 36 months 2. Cardiovascular risk measured using carotid ultrasound, electrocardiography, continuous blood pressure monitoring, Oral Glucose Tolerance Test (OGTT) at baseline, 36 months

Secondary

MeasureTime frame
1. Microbiota diversity is measured using stool sample analysis at baseline and 36 months 2. Individual metabolomic profiles are measured using blood and urine sample analysis at baseline and 36 months 3. Mitoquines and oxidative stress levels are measured using ELISA (GDF15, Humanin) and colorimetric assays (TBARS, 8-OHdG, TAC) at baseline and 36 months 4. Nutritional status is measured using clinical nutritional assessment, dietary intake record, and body composition analysis (DEXA) at baseline and 36 months 5. Liver morphology and elasticity are measured using liver ultrasound and elastography at baseline and 36 months 6. Physical activity levels are measured using the International Physical Activity Questionnaire (IPAQ) at baseline and 36 months 7. Dietary intake patterns are measured using the Food Frequency Questionnaire (FFQ-143) at baseline and 36 months 8. Cardiovascular health is measured using electrocardiography and ambulatory blood pressure monitoring (ABPM) at baseline and 36 months 9. Brain structure and function are measured using brain magnetic resonance imaging (MRI) at baseline and 36 months

Countries

Spain

Contacts

Public ContactGlòria Garrabou
garrabou@clinic.cat+34 (0)93 227 54 00 - 2907

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: May 1, 2026