AzTrials
AzTrials

PhenylketonuriasNCT05827536

Open-label, Randomized, 2-way Crossover, Monocentric, Controlled Study to Evaluate the Effect on Daily PHE Fluctuation of PKU GOLIKE Versus SoC in Patients With PKU.

A study testing PKU GOLIKE in people with Phenylketonurias, run by APR Applied Pharma Research s.a. at 1 site in Italy.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
Search all trials

Trial summary

This is an open-label, randomized, 2-way crossover, monocentric controlled study in patients (≥ 16 years old) with phenylketonuria (PKU). The comparison will be between the test product (PKU GOLIKE, a prolonged-release amino-acids (AAs) mixture) and standard of care. Read more about this study

Who is it for?
Ages 16 years and older
Conditions the study is for
Phenylketonurias
What is being tested?
PKU GOLIKE
Could I receive a placebo?
No, everyone receives an active treatment
How many people
21 participants
Where
1 siteItaly
Study dates
30 Oct 2023to 27 Nov 2024
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 16 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Signed, informed consent obtained by the patient prior to beingenrolled into the study and prior to starting any data collection. For legally minor patients, signed written consent shall be obtained also by the parents/legal guardian
  • Male or female, aged ≥16 years.
  • Patients with a registered diagnosis of PKU
  • Ability and willingness to comply with all study procedures and availability for the duration of the study.
  • Patients with mean value of blood Phe >360 µM in the previous 12 months (calculated on at least 3 samples during the previous 12 months; the last sample should be preferably obtained in the 30 days preceding inclusion in the study).
  • Patient taking free-AA and/or GMP as usual amino-acidssupplementation.

Who cannot join

  • Known or suspected hypersensitivity to any excipients/components of PKU GOLIKE.
  • Treatment with any drug therapy for PKU
  • Patient taking PKU GOLIKE as usual amino-acids supplementation
  • Patient taking LNAA as usual amino-acids supplementation
  • Any moderate to severe medical condition, which in the opinion of the Investigator would interfere with the study procedures or study outcome (reason to be provided)
  • Any current participation in another clinical trial involving investigational or marketed products in the 3 months prior to the inclusion in this study.
  • Pregnancy or lactation.

Trial locations and contacts

1 site in 1 country.

Italy1 site
  • ASST Santi Paolo e Carlo, Presidio Ospedale San Paolo, Via Antonio di Rudinì 8

    Milan, 20142

Other trials in Italy

About this study

Official title: Open-label, Randomized, 2-way Crossover, Monocentric, Controlled Study to Evaluate the Effect on Daily PHE Fluctuation of PKU GOLIKE Versus Standard of Care in Patients With Phenylketonuria

This is an open-label, randomized, 2-way crossover, monocentric controlled study in patients (≥ 16 years old) with phenylketonuria (PKU).

The comparison will be between the test product (PKU GOLIKE, a prolonged-release amino-acids (AAs) mixture) and standard of care.

Read the detailed description

The study will consist of a screening visit (V1), two treatment periods with two test days each and a final visit planned at the end of the second treatment period (V2). Test days will occur on two consecutive preferably non-working/school days (T1-T2 and T3-T4,) preferably over two consecutive weeks. Treatment days in the two periods will have to be the same days of the week. T1 should be within two weeks after V1. The study products will be self-administered at home. Following informed consent and verification of eligibility criteria, 20 patients with PKU will be randomized in a 1:1 ratio to one of the following two sequences: AB or BA where A=standard of care and B=PKU GOLIKE. In details:

  • AB: patients will receive 3 daily self-administrations of their usual standard of care for 2 consecutive days in the first period followed by 3 daily self-administrations of PKU GOLIKE for 2 consecutive days in thesecond period.
  • BA: patients will receive 3 daily self-administrations of PKU GOLIKE for 2 consecutive days in the first period followed by 3 daily self administrations of their usual standard of care for 2 consecutive days in the second period.

No change in the randomization sequence will be allowed.

Each patient will follow the same diet in terms of food, calories and nutrients ranges during the first days (T1 and T3) of each period and the same diet during the second days (T2 and T4) of each period, according to the age and body weight of the patient. The days before the test days each patient will follow her/his standard diet.

PKU GOLIKE /standard of care will be the only protein substitute allowed on each test day, and no sports activities will be allowed on sampling days. Five blood spots will be collected on the second test day of each period. Timing of self-administrations, meals and blood spots will be standardized for each test day. On the test days, no food will be allowed outside of the defined time windows. The first self-administration of each test day will be performed after an overnight fasting (10 -12 h) and before any food intake.

A patient's e-diary will be used to collect information on patient compliance, 24-hour blood spot collections, diet, daily activities, adverse events and event-related concomitant medications.

Adverse events will be continuously monitored during the study, starting from informed consent. Adverse events will be collected by the patients (or by a parent/guardian) in the e-diary and during the telephone calls made by the Investigator to the patients. Moreover, patients (or parents/guardians) will be instructed to promptly report adverse events occurring during the study to the Investigator.

The end of study (V2) will be performed (remotely, by phone) at the end ofthe second treatment period, within 2 weeks after the last test day. Patients prematurely discontinued from the study will be asked to attend (remotely, by phone) a discontinuation visit possibly taking place within 2 weeks from the last test day. At the final/discontinuation visit, the investigator will organize collection of blood spots test and residual PKU GOLIKE product from the patient's domicile through a dedicated courier service. The account of the e-diary will be inactivated.

Being tested
PKU GOLIKE, Standard of Care
Medical subject headings
Phenylketonurias

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PKU GOLIKEDietary supplement

    PKU GOLIKE is a food for special medicinal purposes (FSMP) for the dietary management of PKU.

  • Standard of CareDietary supplement

    Protein substitute

Study groups in NCT05827536
Study groupRoleWhat they receive
AB where A=standard of care and B=PKU GOLIKEOtherPatients will receive 3 daily self-administrations of their usual standard of care for 2 consecutive days in the first period followed by 3 daily self-administrations of PKU GOLIKE for 2 consecutive days in the second period.
Receives: Dietary Supplement: PKU GOLIKE; Dietary Supplement: Standard of Care
BA where B=PKU GOLIKE and A=standard of careOtherPatients will receive 3 daily self-administrations of PKU GOLIKE for 2 consecutive days in the first period followed by 3 daily self-administrations of their usual standard of care for 2 consecutive days in the second period.
Receives: Dietary Supplement: PKU GOLIKE; Dietary Supplement: Standard of Care

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With Standard of Care Right Before Product Self-administration and Before Any Food Intake

    Measurement of blood phenylalanine (Phe) levels

    Measured: at 8:00 am(±15 min) on the second test day (T2; T4) with SoC

  2. Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With GOLIKE PLUS Right Before Product Self-administration and Before Any Food Intake

    Measured: at 8:00 am(±15 min) on the second test day (T2; T4) with Golike Plus

  3. Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With Standard of Care Right Before Product Self-administration and Before Food Intake

    Measured: at 12:00 am (±15 min) on the second test day (T2; T4)with SoC

  4. Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With GOLIKE PLUS Right Before Product Self-administration and Before Food Intake

    Measured: at 12:00 am (±15 min) on the second test day (T2; T4) with Golike Plus

  5. Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With Standard of Care Before Food Intake

    Measured: At 4:00 pm (±15 min) on the second test (T2;T4) day with SoC

  6. Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With GOLIKE PLUS Before Food Intake

    Measured: At 4:00 pm (±15 min) on the second test day (T2; T4) with Golike Plus

  7. Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With Standard of Care Right Before Product Self-administration and Before Any Food Intake

    Measured: at 8:00 pm (±15 min) on the second test day (T2; T4) with SoC

  8. Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With GOLIKE PLUS Right Before Product Self-administration and Before Any Food Intake

    Measured: at 8:00 pm (±15 min) on the second test day (T2; T4) with Golike Plus

  9. Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Day Following the Second Test Day With Standard of Care on the Following Morning, Before Any Food Intake.

    Measured: at 8:00 am (±15 min) on the day following the second test day (T2; T4) with SoC

  10. Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Day Following the Second Test Day With GOLIKE PLUS on the Following Morning, Before Any Food Intake.

    Measured: at 8:00 am (±15 min) on the day following the second test day (T2; T4) with Golike Plus

Secondary outcomes (10)
  1. Tyr Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With Standard of Care Right Before Product Self-administration and Before Any Food Intake

    Measurement of blood Tyrosine (Tyr) levels

    Measured: at 8:00 am(±15 min) on the second test day (T2; T4) with SoC

  2. Tyr Blood Concentration With Dried Blood Spots (Umol/L)on the Second Test Day With GOLIKE PLUS Right Before Product Self-administration and Before Any Food Intake

    Measured: at 8:00 am(±15 min)on the second test day (T2; T4) with Golike Plus

  3. Tyr Blood Concentration With Dried Blood Spots (Umol/L)on the Second Test Day With Standard of Care Right Before Product Self-administration and Before Any Food Intake

    Measured: at 12:00 am(±15 min) on the second test day (T2; T4) with SoC

  4. Tyr Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With GOLIKE PLUS Right Before Product Self-administration and Before Any Food Intake

    Measured: at 12:00 am(±15 min) on the second test day (T2; T4) with Golike Plus

  5. Tyr Blood Concentration With Dried Blood Spots (Umol/L)on the Second Test Day With Standard of Care Before Food Intake

    Measured: at 4:00 pm(±15 min)on the second test day (T2; T4) with SoC

  6. Tyr Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With GOLIKE PLUS Before Food Intake

    Measured: at 4:00 pm(±15 min)on the second test day (T2; T4) with Golike Plus

  7. Tyr Blood Concentration With Dried Blood Spots (Umol/L)on the Second Test Day With Standard of Care Right Before Product Self-administration and Before Any Food Intake

    Measured: at 8:00 pm(±15 min) on the second test day (T2; T4) with SoC

  8. Tyr Blood Concentration With Dried Blood Spots (Umol/L)on the Second Test Day With GOLIKE PLUS Right Before Product Self-administration and Before Any Food Intake

    Measured: at 8:00 pm(±15 min) on the second test day (T2; T4) with Golike Plus

  9. Tyr Blood Concentration With Dried Blood Spots (Umol/L)on the Day Following the Second Test Day With Standard of Care on the Following Morning, Before Any Food Intake.

    Measured: at 8:00 am(±15 min) on the day following the second test day (T2; T4) with SoC

  10. Tyr Blood Concentration With Dried Blood Spots (Umol/L) on the Day Following the Second Test Day With GOLIKE PLUS on the Following Morning, Before Any Food Intake.

    Measured: at 8:00 am(±15 min) on the day following the second test day (T2; T4) with Golike Plus

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Apr 2023
  2. Study start30 Oct 2023
  3. Primary completion27 Nov 2024
  4. Study completion27 Nov 2024

Why it stopped: Due to recruitment challenges, and despite an extension of the study period, the decision to terminate the trial early was made in agreement with the Principal Investigator

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
The study products will be self-administered at home according to the assigned randomization sequences, AB or BA where A=standard of care and B=PKU GOLIKE. Patients will be randomized in a 1:1 ratio to one of the following two sequences: * AB: patients will receive 3 daily self-administrations of their usual standard of care for 2 consecutive days in the first period followed by 3 daily self-administrations of PKU GOLIKE for 2 consecutive days in the second period. * BA: patients will receive 3 daily self-administrations of PKU GOLIKE for 2 consecutive days in the first period followed by 3 daily self-administrations of their usual standard of care for 2 consecutive days in the second period. Patients that are not compliant or need to be excluded for other clinical reasons from the treatment schedule will be replaced in order to ensure 20 subjects completing both treatment sequences.
Masking
None (open label)
Enrolment
21 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05827536
Sponsor's protocol ID
GLK-IT-2023
Status last verified
Mar 2026
First submitted
24 Mar 2023
Last updated
11 Mar 2026
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing PKU GOLIKE in people with Phenylketonurias, run by APR Applied Pharma Research s.a. at 1 site in Italy.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 11 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 11 Mar 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With Standard of Care Right Before Product Self-administration and Before Any Food Intake (time frame: at 8:00 am(±15 min) on the second test day (T2; T4) with SoC). The study lists 10 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Mar 2026.

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free AzTrials account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in