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PANDA: PKU Amino Acid Evaluation

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Nutricia

Status

Completed

Conditions

Phenylketonuria (PKU)

Study type

Observational

Funder types

Industry

Identifiers

NCT04086511
MBB18TA18444

Details and patient eligibility

About

Phenylketonuria (PKU) is a rare inherited metabolic disorder, where subjects are born with a genetic deficiency in the phenylalanine hydroxylase enzyme (PAH), which leaves them unable to convert Phenylalanine (Phe) into Tyrosine (Tyr). PKU patients have specific dietary needs and must follow a restrictive diet in the aim of preventing toxic levels of the amino acid phenylalanine (Phe) accumulation.

Full description

The exploratory study's main objective is to measure blood amino acid levels and to gain quantitative insights in children with PKU on a protein substitute with respect to evaluation of nutritional intake.

Enrollment

37 patients

Sex

All

Ages

2 to 12 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Both PKU and Non-PKU comparison subjects:

  1. Age ≥ 2 and ≤ 12 years

  2. Willing and able to provide informed consent by parents or legal representatives (and assent if required by local law/regulations)

  3. One subject per family

    PKU subjects specific inclusion criteria:

  4. PKU subjects identified by newborn screening and started low Phe diet before 1 month age

  5. Usage of at least two Phe-free protein substitutes on a daily basis for at least 26 consecutive weeks up to Visit 1

  6. Average Phe-level ≤360 µmol/L based on at least two blood Phe values from the past 12 months up to Visit 1

    Non-PKU comparison subjects specific inclusion criteria:

  7. Same age (±3 years) and sex as an included PKU subject

Exclusion criteria

Both PKU and Non-PKU comparison subjects:

  1. Current psychiatric disorders

  2. Severe hepatic, thyroid or renal dysfunction

  3. Acute illnesses like fever, flu, diarrhea, or vomiting (subjects should be symptom free for a week prior to V1)

  4. Serious conditions (e.g. cancer, hydrocephalus, fatal heart disease)

  5. Participation in any other clinical intervention studies involving test products concomitantly or within six weeks prior to entry into the study

    PKU specific exclusion criteria:

  6. Use of BH4, or drugs that may interfere with main outcomes

    Non-PKU comparison subjects specific exclusion criteria:

  7. PKU diagnosis or any other diagnosed disorder of amino or organic acid metabolism

Trial design

37 participants in 2 patient groups

Children with PKU
Age- and sex-matched non-PKU comparison subjects

Trial contacts and locations

2

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Data sourced from clinicaltrials.gov

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