E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Aspartylglucosaminuria |
Aspartyyliglukosaminuria |
|
E.1.1.1 | Medical condition in easily understood language |
Aspartylglucosaminuria (AGU) is a progressive disease that results in severe mental retardation of the patients. The main symptom of the disease is the progressive loss of mental capabilities. |
Aspartyyliglukosaminuria (AGU) on vaikeaa kehitysvammaisuutta aiheuttava, etenevä lastenneurologinen tauti. Taudin pääoire on henkisen kehityksen taantuminen. |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16] |
MedDRA Classification |
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 |
Safety and efficacy of Cystadane in the treatment of AGU |
Cystadanen teho ja turvallisuus AGU-taudin hoidossa |
|
E.2.2 | Secondary objectives of the trial |
Urine glycoasparagines
AGA enzyme activity in white blood cells
Cognitive function and psychological tests
Quality of life survey
Adaptive skills
MRI findings of the brain
Methionin level
Absence of adverse events
|
Glykoasparagiinien eritys virtsaan
AGA-entsyymin aktiivisuus valkosoluissa
Henkinen kehitys ja psykologiset testit
Elämänlaatukysely
Arjen toimintakyky
Aivojen magneettilödökset
Metioniinipitoisuus
Vakavien haittavaikutusten puuttuminen
|
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Patients below the age of 15 years who have aspartylglucosaminuria
Preferably homozygous for the Finnish major AGU mutation, AGU-Fin-major
Written informed consent of the parents
No known hypersensitivity or allergy against betain
Compliance of the patient
|
Alle 15-vuotiaat potilaat, jotka sairastavat aspartyyliglukosaminuriaa
Erityisesti potilaat, jotka ovat homotsygootteja suomalaisen valtamutaation, AGU-Fin-major, suhteen
Kirjallinen suostumus vanhemmilta
Ei tunnettua yliherkkyyttä betaiinille
Potilaan hyväksi arvioitu yhteistyökyky
|
|
E.4 | Principal exclusion criteria |
Age above 15 years
Patients who do not carry at least one allele of the Finnish major mutation
Known adverse reactions against Betain or components of Cystadane
Known history of cerebral oedema
Participating in other interventional clinical studies
Patients who have undergone bone marrow tranplantation
Co-medication which would interfere with administration of Betain
|
Yli 15-vuotiaat AGU-potilaat
AGU-potilaat, joilla ei kummassakaan alleelissa ole suomalaista valtamutaatiota
Tunnettu yliherkkyys betaiinille tai Cystadanen ainesosille
Aikaisempi havainto aivopaineen noususta
Potilaan osallistuminen muihin interventionaalisiin kliinisiin lääketutkimuksiin
Potilaat, joille on tehty luuydinsiirto
Muu lääkitys, joka saattaisi häiritä betaiinin antamista
|
|
E.5 End points |
E.5.1 | Primary end point(s) |
Primary endpoint is the urinary excretion of glycoasaparagines |
Ensisijainen päätemuuttuja on glykoasparagiinien määrä virtsassa. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
0 months (starting point)
3 months
6 months
12 months
15 months
24 months
36 months
48 months
|
0 kk (alkuarvo)
3 kk
6 kk
12 kk
15 kk
24 kk
36 kk
48 kk |
|
E.5.2 | Secondary end point(s) |
AGA enzyme activity in white blood cells
Psychological tests
Visit at child neurologists
Quality of life survey
Adaptive skills
MRI findings of the brain
Methionin Level in serum
Absence of adverse events |
AGA-entsyymin aktiivisuus valkosoluissa
Psykologiset testit
Lastenneurologin tutkimus
Elämänlaatukysely
Arjen toimintakyky
Aivojen magneettikuvaus
Metioniinipitoisuus seerumissa
Vakavien haittavaikutusten puuttuminen
|
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
AGA enzyme activity in white blood cells: 0, 3, 6, 12, 15, 24, 36, 48 months
Psychological tests: 0, 24, 48 months
Child neurologist: 0,3 , 12, 15, 24, 36, 48 months
Quality of life survey: 0, 12, 24, 36, 48 months
Adaptive skills: 0, 12, 24, 36, 48 months
MRI findings of the brain: 0, 12, 24, 36, 48 months
Methionin level: 0, 3, 6, 12, 24 months
Absence of adverse events: continuously |
AGA-entsyymin aktiivisuus valkosoluissa: 0, 3, 6, 12, 15, 24, 36, 48 kk
Psykologiset testit: 0, 24, 48 kk
Lastenneurologin tutkimus: 0, 3, 12, 15, 24, 36, 48
Elämänlaatukysely: 0, 12, 24, 36, 48 kk
Arjen toimintakyky: 0, 12, 24, 36, 48 kk
Aivojen magneettikuvaus: 0, 12, 24, 36, 48 kk
Metioniinipitoisuus: 0, 3, 6, 12, 24 kk
Vakavien haittavaikutusten puuttuminen: jatkuvasti
|
|
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 | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
3 kk tauko lääkkeen käytössä 12 kk jälkeen |
Treatment break of 3 months after 12 months of use |
|
E.8.2.4 | Number of treatment arms in the trial | 1 |
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 | No |
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
|
After 48 months of starting the test medication |
48 kk päästä lääkkeen käytön aloittamisesta |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 4 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |