E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Infants or children with severe hemophilia A previously untreated with factor concentrates. |
Spädbarn eller småbarn med svår hemofili A som tidigare inte erhållit behandling |
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E.1.1.1 | Medical condition in easily understood language |
Infants or children with severe hemophilia A never treated in the past for this disease |
Spädbarn eller småbarn med svår form av ärftlig blödarsjuka typ A som inte fått någon behandling ännu |
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E.1.1.2 | Therapeutic area | Diseases [C] - Blood and lymphatic diseases [C15] |
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 |
The primary objective of the study is to evaluate the changes in the immune system upon exposure to FVIII with severe hemophilia A |
Huvudsyftet med studien är att studera immunförsvarets reaktion vid exponering av faktor VIII hos patienter med svår form av hemofili A |
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E.2.2 | Secondary objectives of the trial |
The secondary objective is to identify predictors of FVIII inhibitor development or tolerance to FVIII infusions |
I andra hand syftar studien till att identifiera markörer för inhibitorutveckling och toleransutveckling vid faktor VIII-behandling |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1) An informed consent, approved by the appropriate institutional Review Board (IRB)/Independent Ethics Committee (IEC) has been administered, signed and dated by the parents or legal representative of the parents 2) Subject diagnosed with severe hemophilia A defined by baseline FVIII:C <0.01 IU/mL. FVIII activity has to be confirmed by a central lab. If the confirmatory level is not <0.01IU/mL the child must exit the study. 3) Subject weighs 3.5 kg or more at the time of his baseline study evaluation |
1) Informerat samtycke är inhämtat och signerat från föräldrar eller juridiskt ombud för dessa. Samtycke och patientinformation är dessförinnan prövad av oberoende etikprövningsnämnd. 2) Patientens plasmanivå av FVIII är <0.01IU/mL och detta resultat är konfirmerat i centralt lab. 3) Patienten väger minst 3,5 kg vid tiden för inklusion. |
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E.4 | Principal exclusion criteria |
1) Subjects with prior exposure to clotting factor concentration or blood products. 2) Subjects with a clinically significant chronic disease other than hemophilia A 3) Subjects that are currently participating in another investigational clinical trial |
1) Patient som före inklusionen blivit exponerad för blodprodukter eller koagulationskoncentrat 2) Patient med annan kronisk sjukdom utöver hemofili. 3) Patient som för närvarande deltar i annan klinisk studie eller prövning |
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E.5 End points |
E.5.1 | Primary end point(s) |
In relation to the primary endpoints, an inhibitor is defined by a Nijmegen test >0.6 BU in two consecutive tests conducted in the central lab. During the first 50 days of exposure to a single FVIII product, the following items will be evaluated: - FVIII inhibitor - FVIII antibody titer, subclasses and FVIII-binding affinity - FVIII-specific T-cell responses - Total number of FOXP-3-positive T reg - RNA expression for the whole transcriptome - F8 gene mutation and other known genomic predictors for inhibitor development |
En inhibitor definieras som ett Nijmegen test >0.6BIU/mL i två upprepade mätningar. Under de första 50 exponeringsdagarna av FVIII kommer följande immunologiska analyser/faktorer studeras:
- FVIII inhibitor - FVIII antibody titer, subclasses and FVIII-binding affinity - FVIII-specific T-cell responses - Total number of FOXP-3-positive T reg - RNA expression for the whole transcriptome - F8 gene mutation and other known genomic predictors for inhibitor development |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
The inhibitor to FVIII will be evaluated during the following visits: day 1, 5, 10, 20, 30, 40 and 50. |
Blodprover kommer insamlas i relation till exponeringsdag 1, 5, 10, 20, 30, 40 och 50 |
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E.5.2 | Secondary end point(s) |
The secondary endpoints will be evaluated during the first 50 exposure days. The items recorded in this period are: FVIII usage, bleeding episodes, occurrence of infection and/or immunization |
Under de första 50 exponeringsdagarna kommer följande klinisk information insamlas: FVIII-användning, blödningsepisoder, förekomst av infektioner och immuniseringar. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
At study completion (after 50 exposure days or three years, what ever comes first) |
Vid studiens avslutande vilket är efter 50 expo-dagar alt efter 3 års inklusionstid. |
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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 | No |
E.6.10 | Pharmacogenetic | Yes |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
This is a multinational, multicenter study in which a single source of FVIII will be used (Advate) and treatment will be determined by the patient'e physician, including dosing, frequency and regimen (prophylaxis or on demand). |
Detta är en multicenterstudie där Advate används. Vilken behandlingsregim (vid behov eller prophy), behandlingsstart och dosering bestäms av den behandlande läkaren. |
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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 | 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 | No |
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 | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 4 |
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 |
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E.8.7 | Trial has a data monitoring committee | Yes |
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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Last visit last subject (LVLS) |
Last visit last subject (LVLS) |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 4 |