E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Hereditary angioedema (HAE) is characterized by congenital C1-INH deficiency. This is reflected by insufficient plasma concentrations of C1 – inhibitor or by synthesis of dysfunctional C1 – inhibitor molecules, which can lead to attacks of abdominal pain and/or severe swelling in the tissues e.g. of the face. Replacement with C1 esterase inhibitor concentrate is the treatment of choice of an acute attack of HAE. |
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MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10019860 |
E.1.2 | Term | Hereditary angioedema |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10019860 |
E.1.2 | Term | Hereditary angioedema |
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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 show that pasteurized C1-INH concentrate (Berinert® P) shortens the time to onset of relief of symptoms of abdominal or facial HAE attack compared to placebo |
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E.2.2 | Secondary objectives of the trial |
- To compare the efficacy of two different dosing schemes of Berinert® P in abdominal or facial attacks of edema due to HAE - To compare the safety of Berinert® P in subjects with HAE between the initial three treatment groups (Berinert® P 10 Units per kg b.w., Berinert® P 20 Units per kg b.w, placebo) |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Male and female subjects >= 6 years - Documented congenital C1-INH deficiency with immunogenic and/or functional C1-INH level below the lower limit of the laboratory reference range (HAE type I or II); to be confirmed by central laboratory. - Documented history of abdominal or facial attacks - Acute abdominal or facial attack with moderate /severe intensity for no longer than 5.0 hours at the time of study medication administration - Informed written consent has been obtained (signed by subject, or, in case of a minor, by his/her legally acceptable representative(s))
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E.4 | Principal exclusion criteria |
- Life expectancy < 6 months - Incurable malignancies with metastases - History of hypersensitivity to the study medication - Acquired angioedema due to C1-INH deficiency (e. g., onset at age > 40 years, no family history of congenital C1-INH deficiency, low C1q level, and no known HAE mutation) - All other types of angioedema not associated with C1-INH deficiency (including e.g. anaphylactic angioedema) - Abdominal pain caused by other pathology (e. g., appendicitis, myocardial infarction) - End-stage liver disease (i.e., Child-Pugh-score B or C) - Fever (> 38.3°C or 101.0 F) - High white blood cell count (> 20.0 x 10 exp9/L ) - Pregnant women (pregnancy test required), women currently breast-feeding, or with the intention to breast feed - Treatment with any other investigational drug (except IMP and any other drugs appropriate for the treatment of acute angioedema) 30 days before start of study treatment on Day 1. - Treatment with any C1-INH concentrate or any other drugs appropriate for the treatment of acute angioedema within 7 days before start of study treatment on Day 1. - Treatment with fresh frozen plasma or native plasma within 7 days before start of study treatment on Day 1. - Treatment with ACE inhibitors within 4 weeks before start of study treatment on Day 1. - Narcotic pain medication and/or anti-emetics between start of attack and administration of study medication. - Evidence of narcotic seeking behavior and/or drug addiction (including alcohol abuse) - Mental condition rendering the subject (or the subject’s legally acceptable representative(s)) unable to understand the nature, scope and possible consequences of the study - Prior inclusion into this study
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E.5 End points |
E.5.1 | Primary end point(s) |
Time to onset of relief from the evaluated (abdominal or facial) attack will be assessed by the investigator every 15 min for the first 2 hours, every 30 min for the next 2 hours, and at 5, 6, 7, 8, 12, 16, 20 and 24 hours after start of administration of the study medication. The investigator or a delegate will ask each subject at the above defined time points:
1. Taking into account all of the symptoms you experienced with this HAE attack, are you confident that it is starting to improve?
If the answer to Question 1 has been “yes” for two consecutive time points, asking Question 1 will stop. The time of onset of relief from attack is defined by the time determined at the first of the two consecutive “yes” responses.
If rescue medication or non-permitted medication was administered before this time has been reached, the subject will be considered as a non-responder and the time to onset of relief will be set to a poor/failure outcome for the primary analysis.
Subjects will not be discharged from hospital, before the relief from symptoms of the evaluated (abdominal or facial) attack has started, including both the time to reaching the primary endpoint and the time to relief after rescue medication, if applicable. In addition, the 4-hour sample for C1-INH and C4 determination is to be taken before discharge. |
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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 | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
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 | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
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 | Yes |
E.8.2.3 | Other | No |
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 | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 15 |
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 | Information not present in EudraCT |
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 of the last patient |
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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 |