E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Hyperphenylalaninemia (HPA) in adults and children >=16 years of age with phenylketonuri (PKU) (classic or mild PKU, or mild hyperphenylalaninemia (HPA)).
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MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10034872 |
E.1.2 | Term | Phenylketonuria |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10034873 |
E.1.2 | Term | Phenylketonuria (PKU) |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10034872 |
E.1.2 | Term | Phenylketonuria |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10034871 |
E.1.2 | Term | Phenylalaninemia |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The primary objective is to identify subjects with PKU responsive to Kuvan® (≥30% reduction from baseline in blood PHE level) in a single centre in Norway using the 24-hour BH4 loading test. |
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E.2.2 | Secondary objectives of the trial |
The secondary objectives are to compare the response to Kuvan® in subjects with PKU after the 24-hour BH4 loading test with the response to Kuvan® after 7 days of treatment, and to compare the response to Kuvan® between subjects with differing PKU genotypes and phenotypes. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Subjects will be included if they meet the following requirements: • aged between ≥16 years and 65 years at the screening visit • diagnosed with PKU (classic PKU, mild PKU or mild HPA) • previously untreated with sapropterin dihydrochloride • baseline blood PHE measurement ≥400 µmol/L • agreed to comply with study procedures • provided written informed consent.
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E.4 | Principal exclusion criteria |
Main exclusion criteria are: • documented BH4 deficiency • pregnant, planning pregnancy or breastfeeding.
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoint is the proportion of subjects with a ≥30% reduction from baseline in blood PHE level (responders) to 24 hours after treatment with Kuvan® 20 mg/kg (the BH4- loading test). |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | Information not present in EudraCT |
E.8.1.2 | Open | Information not present in EudraCT |
E.8.1.3 | Single blind | Information not present in EudraCT |
E.8.1.4 | Double blind | Information not present in EudraCT |
E.8.1.5 | Parallel group | Information not present in EudraCT |
E.8.1.6 | Cross over | Information not present in EudraCT |
E.8.1.7 | Other | Information not present in EudraCT |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Information not present in EudraCT |
E.8.2.2 | Placebo | Information not present in EudraCT |
E.8.2.3 | Other | Information not present in EudraCT |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 0 |
E.8.9.1 | In the Member State concerned months | 10 |
E.8.9.1 | In the Member State concerned days | 7 |