PKU UP is a prospective, single-arm, open-label, 26-week acceptability study to evaluate PKU UP for the dietary management of participants with phenylketonuria (PKU). Up to 15 participants aged 1 - 10 years old will be recruited and it is anticipated the study will open in at least three sites in the United Kingdom (UK) to recruit the target number of participants in the required timeframe.
PKU is a rare inborn error of metabolism with a prevalence of 1 in 10,000 in the UK population. The mainstay of treatment for most individuals is dietary therapy with a strict protein-restricted diet. We propose to recruit children with a diagnosis of PKU aged 1-10 years. The study product, PKU UP, is a food for special medical purposes (FSMP), as defined by the Delegated Act EU 2016/128, used for the dietary management of Phenylketonuria (PKU). The study will be investigating the acceptability of PKU UP, as defined by the Advisory Committee on Borderline Substances (ACBS). This includes the following: * participant adherence to recommended intakes * gastrointestinal symptoms * evaluations of palatability. Each participant will be on the study for 26 weeks. This includes evaluation part 1 and evaluation part 2: * Part 1 consists of a 12 week period where participants introduce the study product into their diet. Gastrointestinal tolerance, metabolic control, compliance, product acceptability and dietary quality will be evaluated. * Part 2 consists of a 14 week period where participants continue to take the study product for a longer assessment of growth and nutritional status. Data collection will be performed using paper and/or electronic Case Report Forms completed by the investigators at the baseline, evaluation periods and end of study visits. There will also be three questionnaires completed by the parents/guardians over the course of the study, in relation to protein substitute intake, gastrointestinal tolerance, and product acceptability.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
16
PKU UP is a food for special medical purposes (FSMP). This product is for use in the dietary management of Phenylketonuria (PKU) in children aged from one (1) to ten (10) years. PKU UP is a neutral-flavoured, ready-to-drink, low-phenylalanine protein substitute containing a blend of glycomacropeptide (GMP) isolate, essential and non-essential amino acids, fat, carbohydrate, vitamins, minerals and docosahexaenoic acid (DHA).
Royal Belfast Hospital for Sick Children
Belfast, United Kingdom
Birmingham Children's Hospital
Birmingham, United Kingdom
St. Luke's Hospital
Bradford, United Kingdom
University Hospitals Bristol and Weston NHS Foundation Trust
Bristol, United Kingdom
Change in phe level between baseline and visit 3
Change in phe level as measured by dried blood spot testing
Time frame: 26 weeks
Change in tyrosine level between baseline and visit 3
Change in tyrosine level as measured by dried blood spot testing
Time frame: 26 weeks
Change in PI impression of metabolic control
Assessment of the participant's metabolic control in the opinion of the investigator
Time frame: Week 0, week 6, week 12, week 26
Change in the growth of participants as measured by Height (length in under 2 years of age), Head circumference in under 2 years of age and Weight.
Assessed via anthropometry measurements. Participants will be weighed and measured for growth monitoring.
Time frame: Week 0, week 12, week 26
Change in GI tolerance (participant)
Gastrointestinal tolerance assessed using the PedsQL Gastrointestinal Symptoms Scale completed by the participants
Time frame: Week 0, week 6, week 12, week 26
Change in PI impression of GI tolerance
Assessment of the participant's GI tolerance in the opinion of the investigator
Time frame: Week 0, week 6, week 12, week 26
Change in compliance with study product consumption
Assessed via participant diary regarding study product intake
Time frame: Week 0, week 6, week 12, week 26
Change in PI impression of study product intake
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Great Ormond Street Hospital for Children NHS Foundation Trust
London, United Kingdom
Nottingham Children's Hospital
Nottingham, United Kingdom
Sheffield Children's Hospital
Sheffield, United Kingdom
Assessment of the participant's compliance in the opinion of the investigator
Time frame: Week 0, week 6, week 12, week 26
Change in product acceptability
Assessed via a product acceptability questionnaire completed by the participant/parent
Time frame: Week 0, week 12, week 26
Change in dietary intake
Assessed via 24-hour recall and low protein food frequency questionnaire
Time frame: Week 0, week 12, week 26
Change in nutritional biochemistry
Assessed via venous blood sample of approximately 10ml
Time frame: Week 0, week 26