E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Acute angioedema attacks in children less than 12 years of age with hereditary angioedema. |
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E.1.1.1 | Medical condition in easily understood language |
Hereditary Angioedema (HAE) or Quincke Oedema is characterized by rapid swelling of parts of the body (HAE attacks). |
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E.1.1.2 | Therapeutic area | Diseases [C] - Immune System Diseases [C20] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 15.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10037735 |
E.1.2 | Term | Quincke's oedema |
E.1.2 | System Organ Class | 100000004858 |
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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 |
The objectives of the study are to evaluate (1) the dose response and (2) the PK/PD of IV administration of Cinryze for the treatment of acute angioedema attacks in children above and below 25 kg and less than 12 years of age with HAE; and (3) to determine the safety and tolerability following IV administration of Cinryze in this study population. |
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E.2.2 | Secondary objectives of the trial |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Be children (male or female), ≥2 and <12 years of age. 2. Be at least 10 kg of body weight. 3. Have a confirmed diagnosis of HAE with at least one of the following: - C1 inhibitor (C1 INH) antigen level below normal - Functional C1 INH level below normal 4. Have an acute HAE attack and be able to initiate study drug treatment within 8 hours after onset of symptoms. 5. Have a parent/legal guardian who is willing and able to provide written informed consent for the child to participate in the study (with assent from the child when appropriate).
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E.4 | Principal exclusion criteria |
1. Have any active infectious illness (e.g., flu, upper respiratory tract infection, etc.). 2. Have had a prior HAE attack within 7 days prior to dosing with study drug and/or received any C1 INH product for the treatment or prevention of an HAE attack within 7 days prior to dosing with study drug. 3. Have received therapy with antifibrinolytics (e.g., tranexamic acid), androgens (e.g., danazol, oxandrolone, stanozolol, or testosterone), ecallantide (Kalbitor®), or icatibant (Firazyr®) within 7 days prior to dosing with study drug. 4. Have a history of allergic reaction to C1 INH products, including Cinryze (or any of the components of Cinryze), or other blood products. 5. Have participated in any other investigational drug evaluation within 30 days prior to dosing with study drug, or have previously received treatment with Cinryze in this study at any time. 6. Have, as determined by the investigator and/or the sponsor’s medical monitor, any surgical or medical condition that could interfere with the administration of study drug, interpretation of study results, or compromise the safety or well-being of the subject. 7. If female, be pregnant or breastfeeding. 8. Be suspected of having an alternate explanation for their symptoms other than acute HAE attack. 9. Have a history of narcotic-seeking behavior and/or drug/alcohol abuse. |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary efficacy endpoint is the presence of unequivocal beginning of relief of the defining symptom within 4 hours following initial treatment with Cinryze. This endpoint will be determined for all subjects in the efficacy analyses, and will be presented separately for subjects in the different weight/dose categories. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Within 4 hours following initial treatment. |
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E.5.2 | Secondary end point(s) |
Secondary efficacy endpoints will include: • Time to unequivocal beginning of relief of the defining symptom • Time to complete resolution of the attack These endpoints will be determined for all subjects in the efficacy analyses, and will be presented separately for subjects in the different weight/dose categories. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Time to complete resolution of the attack. |
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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 | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
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 | Yes |
E.8.2.3.1 | Comparator description |
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E.8.2.4 | Number of treatment arms in the trial | 2 |
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 | 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 |
Germany |
Hungary |
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 | 2 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |