Generalized Myasthenia Gravis MedDRA version: 20.0 Level: HLT Classification code 10071942 Term: Myasthenia gravis and related conditions System Organ Class: 100000004859
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: • Male and female patients = 18 years of age • Diagnosed with MG at least 6 months (180 days) prior to the date of the Screening Visit as confirmed by protocol-specific criteria • Myasthenia Gravis Foundation of America Clinical Classification Class II to IV at screening • MG-ADL profile must be = 6 at screening and randomization (Day 1) • Vaccinated against meningococcal infections within 3 years prior to, or at the time of, initiating study drug to reduce the risk of meningococcal infection (N meningitidis). • Body weight = 40 kg at the time of screening • Patients of childbearing potential and patients with partners of childbearing potential must follow protocol-specified contraception guidance for avoiding pregnancy while on treatment and for 8 months after last dose of study drug Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 144 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 16
Exclusion criteria
Exclusion criteria: Medical Conditions: • Any active or untreated thymoma. History of thymic carcinoma or thymic malignancy unless deemed cured by adequate treatment with no evidence of recurrence for = 5 years before Screening • History of thymectomy, thymomectomy, or any thymic surgery within the 12 months prior to screening • History of N meningitidis infection • Human immunodeficiency virus (HIV) infection • History of hospitalization for = 24 hours, for any reason, within the 4 weeks (28 days) prior to screening • Females who plan to become pregnant during the study, or are currently pregnant or breastfeeding, or who have a positive pregnancy test result at screening or on Day 1 •History of unexplained infections •Active systemic bacterial, viral, or fungal infection within 14 days prior to study drug administration on Day 1 •Presence of fever =38°C (100.4°F) within 7 days prior to study drug administration on Day 1 Prior/Concomitant Therapy •Use of the following within the time period specified below: - IVIg within the 4 weeks (28 days) prior to randomization (Day 1) - Use of PE within the 4 weeks (28 days) prior to randomization (Day 1) - Use of rituximab within the 6 months (180 days) prior to screening • Patients who have received previous treatment with complement-inhibitors (eg, eculizumab)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: To assess the efficacy of ravulizumab compared with placebo in the treatment of gMG based on the improvement in the Myasthenia Gravis-Activities of Daily Living (MG-ADL) profile.;Secondary Objective: - To assess the efficacy of ravulizumab compared with placebo in the treatment of gMG based on the improvement in the Quantitative Myasthenia Gravis (QMG) total score. - To assess the efficacy of ravulizumab compared with placebo in the treatment of gMG based on the improvement in quality of life measures. - To assess the efficacy of ravulizumab compared with placebo in the treatment of gMG based on other efficacy endpoints.;Primary end point(s): Change from Baseline in MG-ADL total score ;Timepoint(s) of evaluation of this end point: At Week 26 of the Randomized-Controlled Period. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): • Change from Baseline in QMG total score • Change from Baseline in the Revised 15-Component Myasthenia Gravis Quality of Life (MG-QoL15r) score • Change from Baseline in Neuro-QoL Fatigue score • Improvement from baseline of at least 3 points in the MG-ADL total score • Improvement from baseline of at least 5 points in the QMG total score;Timepoint(s) of evaluation of this end point: At Week 26 | — |
Countries
Austria, Canada, Czechia, Czech Republic, Denmark, France, Germany, Israel, Italy, Japan, Korea, Republic of, Netherlands, Portugal, Spain, Switzerland, United Kingdom, United States
Contacts
Alexion Europe SAS