ClinicalTrials.gg
CompletedNCT03058848PKU StartUpdated Feb 16, 2024

Evaluation of PKU Start

An interventional study of PKU Start in Phenylketonuria and Inborn Errors of Metabolism, sponsored by Vitaflo International, Ltd. Completed at 3 sites in United Kingdom. Open to participants aged 4 Weeks to 2 Years. Per ClinicalTrials.gov, last updated 2024-02-16.

Sponsored by Vitaflo International, Ltd (part of Nestlé S.A.) · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
4 Weeks to 2 Years
Sex
All
01

Study summary

To evaluate the acceptability, tolerance and effect on metabolic control of PKU Start, a new Phe free protein substitute for the dietary management of PKU in infants from birth.

Read the detailed description

This is an assessment of ten (10) infants who require a protein restricted diet that is low in Phe. Infants who routinely use a Phe free infant formula as part of their dietary therapy will be recruited for a 28-day assessment of PKU Start, to evaluate tolerance and acceptability.

The outcome of this assessment will be used in a submission to the regulatory authorities, Advisory Committee on Borderline Substances (ACBS), for PKU Start to become reimbursable on prescription in the UK.

The participant's dietitian will advise on an appropriate amount of PKU Start based on individual requirements. Parents/carers will be asked to substitute their usual Phe-free infant formula with PKU Start for one (1) month. The sponsor will supply PKU Start free of charge.

Prior to starting PKU Start, parents/carers will be asked to record information about the infant's usual GI tolerance and feeding pattern for a period of three (3) days, to allow for comparison between their existing formula and PKU Start.

They will be asked to record information about the following:

Stools Vomiting and Spit-up Feed / Fluid Intake and Compliance Phenylalanine Levels Final Evaluation about the presentation of the product, ease of preparation and how PKU Start flowed through the teat of a bottle.

02

Conditions studied

  • Phenylketonuria
  • Inborn Errors of Metabolism

Keywords

  • Phenylketonuria
  • PKU
  • Metabolism
  • Metabolic
  • Control
  • Acceptability
03

In context

Phenylketonurias

191 studies on the registry are indexed under Phenylketonurias; 40 are open to participants now.

This study's enrollment of 10 is below the median of 27 across 122 interventional studies indexed under Phenylketonurias.

Browse Phenylketonurias studies →

Lead sponsor

Vitaflo International, Ltd is the lead sponsor of 23 studies on the registry; none are open to participants now.

First submitted after Vitaflo International, Ltd became part of Nestlé S.A..

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
4 Weeks to 2 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. A diagnosis of classical or severe PKU on new-born screening (For the purposes of this study, 'severe' is defined as phe concentrations between 120 and 600 µmol/L at diagnosis)
  2. Taking a minimum of one (1) feed of a Phe-free infant formula
  3. A minimum period of four (4) weeks from the time of diagnosis to initial approach to parents

Exclusion criteria

Exclusion Criteria:

  1. Diagnosed with mild PKU or hyperphenylalaninaemia (For the purposes of this study, 'mild' is defined as phe concentrations between 120 and 600 µmol/L at diagnosis)
  2. Diagnosis of a congenital condition
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    Consumption of PKU Start

    Daily feed, substituting the participant's normal phe-free formula for PKU Start.

    Dietary Supplement: PKU Start

Interventions

  • Dietary supplementPKU Start

    PKU Start is a powdered, phenylalanine-free, infant formula, containing essential and non-essential amino acids, carbohydrate, fat, vitamins, minerals, trace elements and long chain polyunsaturated fatty acids (LCPs); Arachidonic acid (AA) and Docosahexaenoic acid (DHA). It is suitable for use from birth. The recommended amount of the product for each participant will be determined and prescribed by a dietitian.

06

What researchers measure

Primary outcomes

  1. Product compliance daily diary

    Quantitative assessments from subject questionnaires that allow evaluation of compliance with the study product, i.e. actual versus prescribed intake.

    Time frame: Days 1-28

  2. GI tolerance daily diary

    Qualitative assessments from subject questionnaires that allow evaluation of the gastro-intestinal tolerance of the study product.

    Time frame: Days 1-28

  3. Ease of use questionnaire

    Qualitative assessment from subject questionnaire that allows evaluation of the ease of use of the study product.

    Time frame: Day 29

  4. Daily phenylalanine control

    Collection of quantitative data regarding phenylalanine control using routine biochemical testing

    Time frame: Days 1-28

07

Study locations

3 sites
  • NHS Greater Glasgow and Clyde
    Glasgow, Lanarkshire G51 4TF, United Kingdom
  • Birmingham Children's Hospital NHS Foundation Trust
    Birmingham, West Midlands B4 6NH, United Kingdom
  • Bradford Teaching Hospitals NHS Foundation Trust
    Bradford, West Yorkshire BD5 0NA, United Kingdom
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Mar 2017 to primary completion in Sep 2017, 6 months.

Of 33 interventional studies with no phase under Phenylketonurias, half reached primary completion within 22 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 28. This study's 6 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 16, 2017
First posted
Feb 23, 2017
StartActual
Mar 6, 2017
Primary completionActual
Sep 15, 2017
CompletionActual
Sep 15, 2017
Last update
Feb 16, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 16, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03058848
Responsible party
Sponsor
First posted
Feb 23, 2017
Start date
Mar 6, 2017
Primary completion
Sep 15, 2017
Completion
Sep 15, 2017
Last update
Feb 16, 2024

Study contacts

Anita MacDonald
principal investigator · Birmingham Women's and Children's NHS Foundation Trust

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion