E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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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 |
To assess post-marketing immunogenicity of Optivate® by monitoring plasma inhibitor levels for at least 100 Exposure Days (EDs) for each subject. |
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E.2.2 | Secondary objectives of the trial |
To assess efficacy and tolerability by monitoring factor VIII (FVIII) recovery and Adverse Events (AEs). |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Written informed consent or, if less than 18 years of age written assent (where possible) and their parent/guardian’s has given written informed consent.
Severe haemophilia A (< 1% FVIII:C). Subjects suffering from severe haemophilia A (< 2%) may be enrolled, but only after approval by BPL. Subjects with a Factor VIII of < 2% may not constitute more than 50% of the total patient population. A separate statistical evaluation will be conducted for the < 1% and < 2% populations. Basal FVIII level taken from subject’s lowest level recorded, or the level measured at screening, whichever is lower.
Previously Treated Patients (PTPs) with > 150 exposure days on prior Factor VIII therapy (of which at least the last 50 EDs or 2 years treatment can be confirmed by way of subject records).
Immunocompetent with CD4 count > 200 /μL.
HIV negative or a viral load < 200 particles /μL. |
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E.4 | Principal exclusion criteria |
History of inhibitor development to FVIII or a positive result on the Nijmegen-Bethesda at screening (quantitative result of > 0.6 Bethesda Units [BU]) prior to the administration of Optivate®.
Known or suspected hypersensitivity to the Investigational Medicinal Product (IMP) or its excipients.
Clinically significant liver disease (serum Alanine Aminotransferase [ALT] levels greater than three times the upper limit of the normal range), renal disease (serum creatinine > 200mol/L), or coagulopathy other than haemophilia A. History of unreliability or non-cooperation (including not being able to complete the study diary).
Participating in, or have taken part in another trial within the last 30 days. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Immunogenicity of Optivate® by monitoring plasma inhibitor level for at least 100 EDs for each subject. |
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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) |
Recovery with current FVIII (Screening Visit) versus (vs.) 1st dose with Optivate® (V1).
Recovery at 1 ED (V1), 10-15 EDs (V2), 50-75 ED (V3) and 100 EDs (V4).
Number of break-through bleeds including severity, duration, location and cause.
Clinician’s judgement of break-through bleed treatment outcome (excellent, good, moderate, poor). Subject’s judgement of break-through bleed treatment outcome (very helpful, helpful, helped a little, did not help).
Number of exposure days for each subject and per month/subject, per year/subject and overall.
Total dose in IU/kg of Optivate® and average dose per infusion for prophylactic use, to treat a bleed, any additional preventative use and overall use; all analysed on a per subject basis.
Total number of infusions for prophylactic use, to treat a bleed, any additional preventative use and overall use; all analysed on a per subject basis.
Mean dose in IU/kg of Optivate® per subject/month and per subject/year for prophylactic use, to treat a bleed, any additional preventative use and overall use; all analysed on a per subject basis.
Mean number of infusions per subject/month and per subject/year for prophylactic use, to treat a bleed, any additional preventative use and overall use; all analysed on a per subject basis. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | Yes |
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) | 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 | 3 |
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 |
Colombia |
Germany |
Poland |
United Kingdom |
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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 | 1 |
E.8.9.1 | In the Member State concerned months | 9 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 9 |