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A study to evaluate whether inebilizumab is safe and effective in adult with Myasthenia Gravis.

Phase 3
Conditions
Health Condition 1: G700- Myasthenia gravis
Registration Number
CTRI/2020/12/030162
Lead Sponsor
Viela Bio Inc acquired by Horizon Therapeutics
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Closed to Recruitment of Participants
Sex
Not specified
Target Recruitment
0
Inclusion Criteria

1.Diagnosis of MG with anti-AChR or anti-MuSK antibody.

2.MGFA Clinical Classification Class II, III, or IV.

3.MG-ADL score of 6 or greater at screening and at randomization with > 50% of this score attributed to non-ocular items.

4.QMG score of 11 or greater.

5.Participants must be on:

a.Corticosteroids only, with no dose increase within 4 weeks prior to randomization, or

b.One allowed non-steroidal IST, with continuous use for at least 6 months prior to randomization and no dose increase within 4 months prior to randomization, or

c.Combination of (1) corticosteroids with no dose increase within 4 weeks prior to randomization and (2) one allowed non-steroidal IST with continuous use for at least 6 months prior to randomization and no dose increase within 4 months prior to randomization.

Allowed ISTs, alone or in combination with corticosteroids, are azathioprine, mycophenolate mofetil, and mycophenolic acid.

Exclusion Criteria

1.Receipt within the 4 weeks prior to Day 1

a.Cyclosporine (except eye drops)

b.Tacrolimus (except topical)

c.Methotrexate

2.Current use of:

a. Corticosteroids (Prednisone > 40 milligram (mg)/day or > 80 mg over a 2-day period (or equivalent dose of other corticosteroids).

b. Acetylcholinesterase inhibitors (pyridostigmine) > 480 mg/day) or unstable dose in the 2 weeks prior to Day 1.

c. Azathioprine > 3 mg/kilogram (kg)/day

d. Mycophenolate mofetil > 3 grams/day or mycophenolic acid > 1440 mg/day

e. Any IST, alone or in combination with corticosteroids, except for azathioprine, mycophenolate mofetil, and mycophenolic acid.

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Change from baseline in Myasthenia Gravis Activities of Daily Living (MG-ADL) Profile scoreTimepoint: Week 26
Secondary Outcome Measures
NameTimeMethod
Change in QMG scores <br/ ><br>Proportion of participants with both greater then equal 3-point improvement in MG-ADL & did not initiate rescue therapy <br/ ><br>Change in MG ADL at Week 26 <br/ ><br>Time to first gMG exacerbation <br/ ><br>Change in MGC score <br/ ><br>Change in Myasthenia Gravis Quality of Life-15, revised MGQOL-15r score <br/ ><br>Change in PGIC score <br/ ><br>Number of participants with TEAEs AESIs & TESAEs during the RCP & OLP <br/ ><br>Timepoint: Week 26 for the overall study, the AChR-Ab & for the MuSK. <br/ ><br>Between Day 28 & Week 52 for AChR-Ab & Day 28 & Week 26 for the overall study the AChR Ab & for the MuSK Ab.Week 26 for the overall study, the AChR-Ab, & for the MuSK-Ab.Week 52 for AChR-Ab population & Week 26 for the overall study, the AChR-Ab, & for the MuSK-Ab.Until Week 156 the overall study population, the AChR-Ab, & for the MuSK-Ab.
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