An interventional study of PKU GOLIKE and Standard of Care in Phenylketonurias, sponsored by APR Applied Pharma Research s.a.. Terminated at 1 site in Italy. Open to participants aged 16 Years and older. Per ClinicalTrials.gov, last updated 2026-03-11.
Sponsored by APR Applied Pharma Research s.a. · Not applicable, Interventional, and Treatment
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.
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:
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.
183 studies on the registry are indexed under Phenylketonurias; 38 are open to participants now.
This study's enrollment of 21 is below the median of 25 across 114 interventional studies indexed under Phenylketonurias.
Browse Phenylketonurias studies →APR Applied Pharma Research s.a. is the lead sponsor of 12 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
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.
Dietary Supplement: PKU GOLIKE · Dietary Supplement: Standard of Care
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.
Dietary Supplement: PKU GOLIKE · Dietary Supplement: Standard of Care
PKU GOLIKE is a food for special medicinal purposes (FSMP) for the dietary management of PKU.
Protein substitute
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
Time frame: at 8:00 am(±15 min) on the second test day (T2; T4) with SoC
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
Time frame: at 8:00 am(±15 min) on the second test day (T2; T4) with Golike Plus
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
Time frame: at 12:00 am (±15 min) on the second test day (T2; T4)with SoC
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
Time frame: at 12:00 am (±15 min) on the second test day (T2; T4) with Golike Plus
Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With Standard of Care Before Food Intake
Time frame: At 4:00 pm (±15 min) on the second test (T2;T4) day with SoC
Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With GOLIKE PLUS Before Food Intake
Time frame: At 4:00 pm (±15 min) on the second test day (T2; T4) with Golike Plus
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 pm (±15 min) on the second test day (T2; T4) with SoC
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
Time frame: at 8:00 pm (±15 min) on the second test day (T2; T4) with Golike Plus
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.
Time frame: at 8:00 am (±15 min) on the day following the second test day (T2; T4) with SoC
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.
Time frame: at 8:00 am (±15 min) on the day following the second test day (T2; T4) with Golike Plus
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
Time frame: at 8:00 am(±15 min) on the second test day (T2; T4) with SoC
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
Time frame: at 8:00 am(±15 min)on the second test day (T2; T4) with Golike Plus
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
Time frame: at 12:00 am(±15 min) on the second test day (T2; T4) with SoC
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
Time frame: at 12:00 am(±15 min) on the second test day (T2; T4) with Golike Plus
Tyr Blood Concentration With Dried Blood Spots (Umol/L)on the Second Test Day With Standard of Care Before Food Intake
Time frame: at 4:00 pm(±15 min)on the second test day (T2; T4) with SoC
Tyr Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With GOLIKE PLUS Before Food Intake
Time frame: at 4:00 pm(±15 min)on the second test day (T2; T4) with Golike Plus
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
Time frame: at 8:00 pm(±15 min) on the second test day (T2; T4) with SoC
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
Time frame: at 8:00 pm(±15 min) on the second test day (T2; T4) with Golike Plus
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.
Time frame: at 8:00 am(±15 min) on the day following the second test day (T2; T4) with SoC
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.
Time frame: at 8:00 am(±15 min) on the day following the second test day (T2; T4) with Golike Plus
Participants were recruited at San Paolo Hospital (Milan-Italy) The First Patient First Visit (FPFV) - defined as the first patient enrolled who signed the Informed Consent Form - took place on 30 October 2023.The last patient completed the study on 27 November 2024, corresponding to the final visit of the last subject (Last Patient Last Visit, LPLV)
| Milestone | AB =1st Usual SoC, 2nd PKU GOLIKE | BA =1st PKU GOLIKE 2nd Usual SoC |
|---|---|---|
| Started | 10 | 11 |
| Completed | 6 | 7 |
| Not completed | 4 | 4 |
| Withdrew: Protocol violation | 2 | 1 |
| Withdrew: Withdrawal by subject | 2 | 3 |
| Milestone | AB =1st Usual SoC, 2nd PKU GOLIKE | BA =1st PKU GOLIKE 2nd Usual SoC |
|---|---|---|
| Started | 10 | 11 |
| Completed | 5 | 7 |
| Not completed | 5 | 4 |
| Withdrew: Withdrawal by subject | 3 | 3 |
| Withdrew: Protocol violation | 2 | 1 |
Measurement of blood phenylalanine (Phe) levels
| μmol/L | SoC at T2 | SoC at T4 |
|---|---|---|
| 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 | 620.2 ± 154.56 | 554.2 ± 202.28 |
| μmol/L | PKU Golike at T2 | PKU Golike at T4 |
|---|---|---|
| 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 | 553.4 ± 230.99 | 537.4 ± 147.87 |
| μmol/L | SoC at T2 | SoC at T4 |
|---|---|---|
| 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 | 574.9 ± 127.60 | 533.3 ± 206.68 |
| μmol/L | PKU Golike at T2 | PKU Golike at T4 |
|---|---|---|
| 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 | 523.2 ± 216.90 | 527.9 ± 195.50 |
| μmol/L | SoC at T2 | SoC at T4 |
|---|---|---|
| Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With Standard of Care Before Food Intake | 559.9 ± 141.58 | 522.8 ± 162.32 |
| μmol/L | PKU Golike at T2 | PKU Golike at T4 |
|---|---|---|
| Phe Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With GOLIKE PLUS Before Food Intake | 505.5 ± 244.91 | 504.7 ± 176.47 |
| μmol/L | SoC at T2 | SoC at T4 |
|---|---|---|
| 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 | 589.8 ± 144.38 | 532.5 ± 198.72 |
| μmol/L | PKU Golike at T2 | PKU Golike at T4 |
|---|---|---|
| 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 | 509.7 ± 229.24 | 519.9 ± 187.42 |
| μmol/L | SoC at T2 | SoC at T4 |
|---|---|---|
| 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. | 585.1 ± 158.88 | 532.0 ± 205.12 |
| μmol/L | PKU Golike at T2 | PKU Golike at T4 |
|---|---|---|
| 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. | 506.1 ± 222.73 | 531.4 ± 194.77 |
Measurement of blood Tyrosine (Tyr) levels
| μmol/L | Soc at T2 | SoC at T4 |
|---|---|---|
| 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 | 56.6 ± 15.26 | 54.8 ± 15.82 |
| μmol/L | PKU Golike at T2 | PKU Golike at T4 |
|---|---|---|
| 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 | 64.6 ± 10.36 | 59.7 ± 13.41 |
| μmol/L | SoC at T2 | SoC at T4 |
|---|---|---|
| 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 | 57.0 ± 17.28 | 72.2 ± 18.84 |
| μmol/L | PKU Golike at T2 | PKU Golike at T4 |
|---|---|---|
| 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 | 83.7 ± 28.85 | 74.8 ± 16.65 |
| μmol/L | SoC at T2 | SoC at T4 |
|---|---|---|
| Tyr Blood Concentration With Dried Blood Spots (Umol/L)on the Second Test Day With Standard of Care Before Food Intake | 68.3 ± 20.11 | 72.0 ± 13.89 |
| μmol/L | PKU Golike at T2 | PKU Golike at T4 |
|---|---|---|
| Tyr Blood Concentration With Dried Blood Spots (Umol/L) on the Second Test Day With GOLIKE PLUS Before Food Intake | 85.6 ± 19.03 | 80.6 ± 28.68 |
| μmol/L | SoC at T2 | SoC at T4 |
|---|---|---|
| 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 | 59.0 ± 11.65 | 50.9 ± 9.26 |
| μmol/L | PKU Golike at T2 | PKU Golike at T4 |
|---|---|---|
| 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 | 63.7 ± 13.18 | 68.5 ± 13.19 |
| μmol/L | SoC at T2 | SoC at T4 |
|---|---|---|
| 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. | 52.8 ± 14.25 | 54.1 ± 11.13 |
| μmol/L | PKU Golike at T2 | PKU Golike at T4 |
|---|---|---|
| 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. | 65.1 ± 18.70 | 57.2 ± 20.96 |
Collected over From the signature of the informed Consent form (V0) to the completion of the study (end of study visit) this means about 4 weeks.. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| A Where A=Standard of Care (SoC) | 0/21 (0%) | 0/21 (0%) | 0/21 (0%) |
| B Where B=PKU GOLIKE | 0/21 (0%) | 0/21 (0%) | 1/21 (4.8%) |
| Event | A Where A=Standard of Care (SoC) | B Where B=PKU GOLIKE |
|---|---|---|
| ASTHENIAGeneral disorders | 0/21 | 1/21 |
Age distribution of all randomized patients (N = 21): The mean (SD) age was 29.8 (8.85) years. The median age was 31 years.
| Age, Continuous(years) | AB =1st Usual SoC, 2nd PKU GOLIKE | BA =1st PKU GOLIKE 2nd Usual SoC | Total |
|---|---|---|---|
| Mean | 31.5 ± 8.05 | 28.18 ± 9.63 | 29.8 ± 8.85 |
| Sex: Female, Male(Participants) | AB =1st Usual SoC, 2nd PKU GOLIKE | BA =1st PKU GOLIKE 2nd Usual SoC | Total |
|---|---|---|---|
| Female | 6 | 3 | 9 |
| Male | 4 | 8 | 12 |
| Race (NIH/OMB)(Participants) | AB =1st Usual SoC, 2nd PKU GOLIKE | BA =1st PKU GOLIKE 2nd Usual SoC | Total |
|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 |
| Asian | 0 | 0 | 0 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 |
| Black or African American | 0 | 0 | 0 |
| White | 10 | 11 | 21 |
| More than one race | 0 | 0 | 0 |
| Unknown or Not Reported | 0 | 0 | 0 |
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APR Applied Pharma Research s.a.