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] - Respiratory Tract Diseases [C08] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 19.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10003553 |
E.1.2 | Term | Asthma |
E.1.2 | System Organ Class | 10038738 - Respiratory, thoracic and mediastinal disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the efficacy of dupilumab, compared with placebo, for reducing the use of maintenance oral corticosteroids (OCS) in patients with severe steroid-dependent asthma. |
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E.2.2 | Secondary objectives of the trial |
To evaluate the safety and tolerability of dupilumab.
To evaluate the effect of dupilumab in improving patient-reported outcomes.
To evaluate dupilumab systemic exposure and the incidence of treatment-emergent antidrug antibodies.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Adult and adolescent patients with a physician diagnosis of asthma for ≥12 months, based on the Global Initiative for Asthma (GINA) 2014 guidelines and the following criteria: - Patients with severe asthma and a well-documented, regular prescribed treatment of maintenance corticosteroids in the 6 months prior to Visit 1 and using a stable OCS dose (ie, no change of OCS dose) for 4 weeks prior to Visit 1. Patients must be taking 5 to 35 mg/day of prednisone/prednisolone, or the equivalent, at Visit 1 and at the Randomization visit. In addition, the patient must agree to switch to study-required prednisone/prednisolone as their OCS and use it per protocol for the duration of the study. - Existing treatment with high-dose inhaled corticosteroid (ICS; >500 mcg total daily dose of fluticasone propionate or equivalent) in combination with a second controller (ie, long-acting beta agonist [LABA], leukotriene receptor antagonist [LTRA]) for at least 3 months with a stable dose of ICS for ≥1 month prior to Visit 1. In addition, patients requiring a third controller for their asthma are considered eligible for this study, and it should also be used for at least 3 months with a stable dose ≥ 1 month prior to Visit 1. - A forced expiratory volume in 1 second (FEV1) <80% of predicted normal for adults and ≤90% of predicted normal for adolescents at Visit 1. - Evidence of asthma as documented by either: reversibility of at least 12% and 200 mL in FEV1 after the administration of 200 to 400 mcg (2 to 4 inhalations of albuterol/salbutamol or levalbuterol/levosalbutamol, or of a nebulized solution of albuterol/salbutamol or levalbuterol/levosalbutamol, if considered as a standard office practice) before randomization or documented in the 12 months prior to Visit 1 OR airway hyperresponsiveness (methacholine: provocative concentration that causes a positive reaction [PC20] of <8 mg/mL) documented in the 12 months prior to Visit 1.
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E.4 | Principal exclusion criteria |
• Patients <12 years of age or the minimum legal age for adolescents in the country of the investigative site, whichever is higher (for those countries where local regulations permit enrollment of adults only, subject recruitment will be restricted to those who are ≥18 years of age). • Patients who weigh <30 kg. • Chronic obstructive pulmonary disease (COPD) or other lung diseases (eg, idiopathic pulmonary fibrosis, Churg-Strauss Syndrome, allergic bronchopulmonary aspergillosis, cystic fibrosis) which may impair lung function. • Clinical evidence or imaging (eg, chest X-ray, computed tomography, magnetic resonance imaging) within 12 months of Visit 1 with clinically significant findings of lung disease(s) other than asthma, as per local standard of care. • A patient who experiences a deterioration of asthma that results in emergency treatment or hospitalization within 4 weeks of Screening Visit 1. • A subject who requires 12 puffs or more of rescue medication on any 1 day in the week prior to Visit 1. • A subject who has experienced an upper or lower respiratory tract infection within the 4 weeks prior to screening. • Current smoker or cessation of smoking within 6 months prior to Visit 1. • Previous smoker with a smoking history >10 pack-years. • Comorbid disease that might interfere with the evaluation of the investigational medicinal product.
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E.5 End points |
E.5.1 | Primary end point(s) |
Percentage reduction in OCS dose while maintaining asthma control |
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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) |
1 - Proportion of patients achieving a reduction of 50% or greater in their OCS dose compared with baseline while maintaining asthma control 2 - Absolute reduction of OCS dose compared with the baseline dose while maintaining asthma control. 3 - Proportion of patients achieving a reduction of OCS dose to <5 mg/day while maintaining asthma control. 4 - Proportion of patients no longer requiring OCS while maintaining asthma control. 5 - Proportion of patients achieving their maximum possible OCS dose reduction while maintaining asthma control. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1,2,5 : Baseline, Week 24 3,4 : week 24 |
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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 | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
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 | Yes |
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 | Yes |
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.8.2.4 | 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 | 3 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 53 |
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 |
Argentina |
Belgium |
Brazil |
Canada |
Chile |
Colombia |
Hungary |
Israel |
Italy |
Mexico |
Netherlands |
Poland |
Romania |
Russian Federation |
Spain |
Ukraine |
United States |
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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 | 2 |
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 | 2 |