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Study to evaluate the safety and efficacy of ravulizumab in adult patients with generalized Myasthenia Gravis who have never been treated with a complement inhibitor.

A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Multicenter Study to Evaluate the Safety and Efficacy of Ravulizumab in Complement-Inhibitor-Naïve Adult Patients With Generalized Myasthenia Gravis - Safety and Efficacy Study of Ravulizumab in Adults With Generalized Myasthenia Gravis

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2018-003243-39-DE
Enrollment
160
Registered
2019-03-25
Start date
2019-07-30
Completion date
Unknown
Last updated
2022-05-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Generalized Myasthenia Gravis MedDRA version: 20.0 Level: HLT Classification code 10071942 Term: Myasthenia gravis and related conditions System Organ Class: 100000004859

Interventions

Trade Name: Ultomiris Product Name: Ravulizumab Product Code: ALXN1210 Pharmaceutical Form: Concentrate for solution for infusion INN or Proposed INN: Fc- and CDR-modified humanised monoclonal antibod

Sponsors

Alexion Pharmaceuticals Incorporated
Lead Sponsor

Eligibility

Sex/Gender
All

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

MeasureTime 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

MeasureTime 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

Public ContactEuropean Clinical Trial Information

Alexion Europe SAS

clinicaltrials.eu@alexion.com+337 87 14 81 58

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 11, 2026