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 |
Hereditary blood disorder characterized by spontaneous bleeding episodes |
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E.1.1.2 | Therapeutic area | Diseases [C] - Blood and lymphatic diseases [C15] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 16.0 |
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 | 100000004850 |
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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 safety of IB1001, - to determine IB1001 pharmacokinetics (PK), and - to evaluate efficacy of IB1001 prophylaxis with respect to breakthrough bleeding and control of hemorrhaging in subjects with severe hemophilia B |
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E.2.2 | Secondary objectives of the trial |
- to evaluate long-term safety of IB1001, and - to evaluate long-term efficacy of IB1001 |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Age of at least 12 years 2. Body Mass Index of ≤ 29, with a minimum body weight of 40 kg 3. Written Institutional Review Board (IRB)/Ethics Committee (EC)-approved informed consent (ICF) 4. Willingness to make the required study visits, and follow instructions while enrolled in the study (up to 12 months) 5. Severe (factor IX activity ≤2 U/dL) hemophilia B subjects with a minimum of 3 bleeding episodes over the preceding 6 months or 6 bleeding episodes over the preceding 12 months prior to being placed on prophylaxis 6. Subjects must be on prophylaxis or switch to a prophylaxis regimen for the duration of the PK and Treatment/Continuation Phase of the study 7. Previously treated patients with a minimum of 150 exposure days to a factor IX preparation 8. Willingness to adhere to the 5-day washout of any factor IX replacement therapy prior to PK evaluations 9. Immunocompetent (CD4 count >400/mm3) and not receiving immune modulating or chemotherapeutic agents 10. Platelet count at least 150,000/mm3 11. Liver function: alanine transaminase (ALT) and aspartate transaminase (AST) ≤2 times the upper limit of the normal range 12. Total bilirubin ≤1.5 times the upper limit of the normal range 13. Renal function: serum creatinine ≤1.25 times the upper limit of the normal range 14. Hemoglobin ≥7 g/dL at the time of the blood draw |
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E.4 | Principal exclusion criteria |
1. History of factor IX inhibitor ≥0.6 Bethesda units (BU) 2. Existence of another coagulation disorder 3. Evidence of thrombotic disease, fibrinolysis or disseminated intravascular coagulation (DIC) 4. Use of an investigational drug within 30 days prior to study entry 5. Previous use of IB1001 6. Use of medications that could impact hemostasis, such as aspirin 7. Hypersensitivity to the active substance or to any of the excipients in the investigational products 8. Known allergic reaction to hamster proteins 9. History of poor compliance, a serious medical or social condition, or any other circumstance that, in the opinion of the investigator, would interfere with participation or compliance with the study protocol 10. History of adverse reaction to either plasma-derived factor IX or recombinant factor IX that interfered with the subject’s ability to treat bleeding episodes with a factor IX product |
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E.5 End points |
E.5.1 | Primary end point(s) |
PK: - Maximum plasma concentration (Cmax) - Area under the curve (AUC0-72, AUC0-∞) - Area under the moment curve (AUMC) - Clearance (Cl) - Rate of elimination for the terminal phase (λz) - Terminal half-life (t½) - Incremental recovery - In-vitro recovery (IVR) - Mean residence time (MRT) - Volume of distribution at steady state (Vdss)
Efficacy: - Annualized bleeding rate (ABR) - Degree of hemorrhage control - Time from onset of treatment until the bleeding episode stops (as defined by ‘change in pain’ and ‘change in swelling’) - Number of infusions required to treat the bleeding episode - Physical therapy assessment of target joint(s) - Subject’s product tolerance > The following efficacy endpoints will be evaluated for surgery: - Estimated blood loss at time of surgery - Post-surgery blood loss
Safety: - Adverse events (AEs) - Inhibitory factor IX (FIX) antibodies - Non-inhibitory FIX antibodies - Anti-CHOP antibodies - Thrombogenicity markers - Laboratory values - Vital signs - Physical exams |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
PK: 2 interim analyses Efficacy: - ABR: end of participation - Others: PK post-infusion, treatment phase visits (5 exposure days; 1, 2, 3 & 6 months) - Surgery: post-surgery Safety: - AEs: PK & repeat PK pre-infusion, all PK & repeat PK timepoints, PK post-infusion, treatment phase visits, pre- & post-surgery - (Non-)inhibitory FIX, anti-CHOP antibodies: screening, PK pre-infusion, PK post-infusion, treatment phase visits, pre- & post-surgery - Thrombogenicity: PK & repeat PK pre-infusion, some PK & repeat PK timepoints - Lab values: screening, PK & repeat PK pre-infusion, some PK & repeat PK timepoints, PK post-infusion, treatment phase visits - Vital signs: screening; same as AEs - Physical exam: screening, PK & repeat PK pre-infusion, PK post-infusion, treatment phase visits |
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E.5.2 | Secondary end point(s) |
Long-term Efficacy and Safety: cf. primary endpoints for details |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Efficacy: continuation phase visits (every 3 months during 6 months), end of study/early withdrawal
Safety: - AEs: continuation phase visits, end of study/early withdrawal - (Non-)inhibitory FIX, anti-CHOP antibodies: continuation phase visits, end of study/early withdrawal - Laboratory values: continuation phase visits, end of study/early withdrawal - Vital signs: continuation phase visits, end of study/early withdrawal - Physical exams: continuation phase visits, end of study/early withdrawal |
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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 | 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 | 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 | 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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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 | 8 |
E.8.9.1 | In the Member State concerned days | 0 |
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 | 8 |
E.8.9.2 | In all countries concerned by the trial days | 0 |