E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Neuromyelitis Optica Spectrum Disorder (NMOSD) |
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E.1.1.1 | Medical condition in easily understood language |
Neuromyelitis Optica Spectrum Disorder (NMOSD) |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10077879 |
E.1.2 | Term | Neuromyelitis optica spectrum disorder relapse |
E.1.2 | System Organ Class | 100000004852 |
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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 |
• Evaluate the efficacy of eculizumab in relapsing pediatric patients with Neuromyelitis Optica Spectrum Disorder (NMOSD) in the Primary Treatment Period. |
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E.2.2 | Secondary objectives of the trial |
Primary Treatment Period: • Evaluate the safety and tolerability of eculizumab treatment in relapsing pediatric patients with NMOSD. • Evaluate the efficacy of eculizumab by additional efficacy measures including: disease-related disability, quality of life and change in ophthalmologic examination findings. • Describe the pharmacokinetics (PK) and pharmacodynamics (PD) of eculizumab in relapsing pediatric patients with NMOSD. Extension Treatment Period: • Characterize long-term safety of eculizumab treatment in pediatric patients with NMOSD. • Characterize long-term efficacy of eculizumab treatment in pediatric patients with NMOSD.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Male or female patients aged 2 years to < 18 years at time of assent/consent. • Anti-AQP4 Ab-positive and diagnosis of NMOSD as defined by the 2015 IPND criteria • Historical Relapse Rate of at least 2 relapses in the last 2 years, and with at least 1 relapse in the year prior to Screening. • Expanded Disability Status Scale score ≤ 7 • Patients who enter the study receiving supportive immunosuppressive therapies for the prevention of relapse, either in combination or monotherapy, must be on a stable dosing regimen of adequate duration prior to Screening and remain on a stable dosing regimen during the Screening Period. • Vaccinated against N meningitidis within 3 years prior to, or at the time of initiating eculizumab. Patients who initiate study drug treatment less than 2 weeks after receiving a meningococcal vaccine must receive appropriate prophylactic antibiotics until 2 weeks after the vaccination. • Documented vaccination against Hib and S pneumoniae infections 2 weeks prior to dosing as per local and country-specific immunization guidelines for the appropriate age group. • Willing and capable to give informed assent (if applicable, as determined by the central Institutional Review Boards (IRBs)/Independent Ethics Committees (IECs) and in accordance with local requirements) and whose parent/legal guardian are willing and able to give written informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in the protocol. |
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E.4 | Principal exclusion criteria |
• Patients known to be human immunodeficiency virus (HIV) positive or with congenital immunodeficiency. • Unresolved meningococcal or other serious infection. •Active systemic bacterial, viral, or fungal infection within 14 days prior to study drug administration on Day 1. • Hypersensitivity to murine proteins or to one of the excipients of eculizumab. • Use of rituximab or other biologicals such as tocilizumab within 6 months prior to Screening. • Use of mitoxantrone within 3 months prior to Screening. • Use of intravenous immunoglobulin (IVIg) or plasma exchange (PE) within 3 weeks prior to Screening. • Use of immunomodulatory therapies for multiple sclerosis within 3 months prior to Screening. • Patient is currently treated with a biologic medication that may affect immune system functioning, or has stopped treatment with a biologic medication that may affect immune system functioning, and 5 half-lives of the medication have not elapsed by the time of the Screening Visit, unless otherwise specified in the protocol. |
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E.5 End points |
E.5.1 | Primary end point(s) |
• Change from Baseline in the Annualized Relapse Rate (ARR). • Time to First Relapse (TFR). |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Primary Treatment Period: throughout the primary treatment period and 52/53* Weeks * For patients who start in weight cohort 10 to <20 kg, the one-year evaluation will occur on Week 53, an odd-numbered week, because maintenance dosing, which is administered every 2 weeks, begins on Week 1. For all other cohorts the one-year evaluation will occur on Week 52, because maintenance dosing begins on an even-numbered week. Hence, the end of the Primary Treatment Period is designated as Week 52/53 throughout the study protocol. |
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E.5.2 | Secondary end point(s) |
Primary Treatment Period:
Safety: • Incidence of treatment-emergent adverse events (TEAEs), serious adverse events (SAEs), and adverse events leading to study drug discontinuation. • Incidence of antidrug antibodies (ADA). • Changes from Baseline in vital signs, electrocardiogram (ECG) parameters, and clinical laboratory assessments. • Change from Baseline in both weight and height.
Efficacy: Disease-related disability: • Change from Baseline in Expanded Disability Status Scale (EDSS) score in patients ≥5 years of age. • Change from Baseline in the Hauser Ambulatory Index (HAI) score. Quality of life: • Change from Baseline in Pediatric Quality of Life Inventory (PedsQL) in patients ≥5 years of age. • Change from Baseline in Pediatric Quality of Life Inventory Parent Proxy (PedsQL Parent Proxy) in patients < 5 years of age. Change in ophthalmologic examination findings: • Change from Baseline in Visual Acuity (VA) as measured by the Snellen or LEA symbols Eye Chart examination in all patients. • Change from Baseline in Confrontational Visual Fields (VF) as measured during ophthalmologic examination in all patients. • Change from Baseline in color vision as measured during ophthalmologic examination in all patients.
PK/PD: • Changes in serum eculizumab concentration over time. • Changes in serum free complement protein 5 (C5) concentrations and in vitro hemolytic activity over time.
Extension Treatment Period: The safety and efficacy endpoints of the Primary Treatment Period will be evaluated during the Extension Treatment Period. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Primary Treatment Period: throughout the primary treatment period At 52/53* weeks * For patients who start in weight cohort 10 to <20 kg, the one-year evaluation will occur on Week 53, an odd-numbered week, because maintenance dosing, which is administered every 2 weeks, begins on Week 1. For all other cohorts the one-year evaluation will occur on Week 52, because maintenance dosing begins on an even-numbered week. Hence, the end of the Primary Treatment Period is designated as Week 52/53 throughout the study protocol.
Extension Treatment Period: 104 weeks |
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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 | Yes |
E.6.7 | Pharmacodynamic | Yes |
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 | Yes |
E.6.13.1 | Other scope of the trial description |
Tolerability and immunogenicity |
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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) | 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 | 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.8.2.4 | Number of treatment arms in the trial | 1 |
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 | 4 |
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 |
Canada |
Japan |
Korea, Republic of |
United States |
Germany |
Italy |
Spain |
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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 | 2 |
E.8.9.1 | In the Member State concerned days | 6 |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 3 |
E.8.9.2 | In all countries concerned by the trial days | 15 |