E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Haemophilia B is a recessive X-linked congenital bleeding disorder characterised by increased bleeding tendency due to either a partial or complete deficiency or dysfunction of the essential blood coagulation factor IX. It is caused by mutations in the F9 gene, located in the distal part on the long arm of the X-chromosome. |
L’emofilia B è una malattia emorragica congenita recessiva legata al cromosoma X, caratterizzata da un’aumentata tendenza al sanguinamento dovuta sia a una completa o parziale deficienza del fattore di coagulazione IX (FIX) sia a una sua alterazione. E’ causata da mutazioni nel gene del FIX, situato nella parte distale del braccio lungo del cromosoma X. |
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E.1.1.1 | Medical condition in easily understood language |
Haemophilia B is a congenital bleeding disorder caused by mutations in the coagulation Factor IX (F9) gene. |
L’emofilia B è una malattia emoraggica congenita, causata da mutazioni nel gene del fattore di coagulazione IX (FIX). |
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E.1.1.2 | Therapeutic area | Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 15.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10018939 |
E.1.2 | Term | Haemophilia B (Factor IX) |
E.1.2 | System Organ Class | 10010331 - Congenital, familial and genetic disorders |
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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 |
To evaluate immunogenicity of glycopegylated recombinant coagulation factor IX (NNC-0156-0000-0009; hereafter referred to as N9-GP). |
Valutare l'immunogenicità del fattore IX di coagulazione ricombinante glicopeghilato (NNC-0156-0000-0009; da qui in poi definito come N9-GP). |
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E.2.2 | Secondary objectives of the trial |
- Valutare la sicurezza oltre all’immunogenicità di N9-GP - Valutare l’efficacia di N9-GP nella profilassi a lungo termine e nel trattamento degli episodi di sanguinamento - Valutare l’efficacia di N9-GP mediante il controllo dell’attività del FIX, marker surrogato per l’efficacia - Valutare le proprietà farmacocinetiche (PK) di N9-GP |
- To evaluate safety other than immunogenicity of N9-GP - To evaluate the efficacy of N9-GP in long-term prophylaxis and in the treatment of breakthrough bleeding episodes - To evaluate the efficacy of N9-GP through the surrogate marker for efficacy, FIX activity - To evaluate the pharmacokinetic (PK) properties of N9-GP |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Male patients with moderately severe or severe congenital haemophilia B with a FIX activity level ≤2% according to medical records - Age ≤ 12 years (until patient turns 13 years, at time of inclusion) - Body weight ≥10 kg - History of at least 50 EDs to other FIX products - The patient and/or parent(s)/caregiver are capable of assessing a bleeding episode, keeping an eDiary, capable of conducting home treatment and otherwise able to follow trial procedures |
- Pazienti maschi con emofilia B congenita moderatamente grave o grave con un livello di attività di FIX ≤ 2% documentata in cartella clinica - Età ≤ 12 anni (prima del compimento dei 13 anni al momento dell’inclusione) - Peso ≥10 kg - Storia di almeno 50 ED con altri prodotti FIX - Il paziente e/o il/i genitore/i o chi si prende cura del paziente siano in grado di valutare un episodio di sanguinamento, gestire un diario elettronico, effettuare trattamenti a domicilio ed essere in grado di seguire le procedure dello studio |
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E.4 | Principal exclusion criteria |
- Known history of FIX inhibitors - Current FIX inhibitors ≥0.6 BU (central laboratory) - Congenital or acquired coagulation disorder other than haemophilia B - Platelet count <50,000/µL at screening - Alanine aminotransferase (ALT) >3 times the upper limit of normal reference ranges at screening - Creatinine level ≥1.5 times above the upper normal limit of normal reference ranges at screening - Human immunodeficiency virus (HIV) positive, defined by medical records, and with a CD4+ lymphocyte count ≤200/µL - Immune modulating or chemotherapeutic medication (except single pulse treatment, inhaled and topical steroids) - Previous arterial thrombotic events (myocardial infarction and intracranial thrombosis, as defined by medical records) |
- Storia nota di inibitori contro il Fattore IX - Inibitori contro il FIX ≥0,6 BU (dato del laboratorio centrale) - Disturbi della coagulazione congeniti o acquisiti diversi dall’emofilia B - Conta piastrinica <50.000/µL allo screening - Valori di ALT 3 volte maggiore rispetto al limite superiore degli intervalli normali di riferimento allo screening - Valori di creatinina 1,5 volte maggiori rispetto al limite superiore normale degli intervalli normali di riferimento allo screening - Positività all’HIV, definita dalle cartelle cliniche, e con una conta di linfociti CD4+ ≤200/µL |
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E.5 End points |
E.5.1 | Primary end point(s) |
Incidence of inhibitory antibodies against coagulation factor IX (FIX) defined as titre ≥0.6 BU |
Incidenza degli anticorpi inibitori contro il Fattore IX della coagulazione definito come ≥0,6 BU |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
1. Number of bleeding episodes during prophylaxis 2. Haemostatic effect of N9-GP in treatment of bleeding episodes by 4-point categorical scale for haemostatic response (excellent, good, moderate and poor) 3. Incremental recovery at 30 minutes (IR30min) 4. Trough level single-dose 5. Trough level steady state 6. Terminal half-life (t1/2) |
1. Numero di episodi di sanguinamento durante la profilassi 2. Effetto emostatico di N9-GP nel trattamento di episodi di sanguinamento su una scala a 4 punti per la valutazione della risposta emostatica (eccellente, buono, moderato, scarso) 3. Recovery incrementale a 30 minuti (IR30min) 4. Livello basale dose singola 5. Livello basale steady state 5. Emivita terminale (t½) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1.Week 52 2.Week 52 3.Week 0 4.Week 0 5.Week 4-44 6.Week 0 |
1.Settimana 52 2.Settimana 52 3.Settimana 0 4.Settimana 0 5.Settimane dalla 4 alla 44 6.Settimana 0 |
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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 | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
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) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
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) | 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.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.4.1 | Number of sites anticipated in Member State concerned | 1 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 10 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Brazil |
Canada |
Croatia |
Israel |
Japan |
Malaysia |
Taiwan |
Thailand |
Turkey |
United States |
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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 | 39 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 0 |
E.8.9.2 | In all countries concerned by the trial months | 45 |
E.8.9.2 | In all countries concerned by the trial days | 0 |