A Study to Evaluate the Safety, Tolerability, Efficacy, Pharmacokinetics and Pharmacodynamics of M281 Administered to Adults With Generalized Myasthenia Gravis

Sponsor
Momenta Pharmaceuticals, Inc. (Industry)
Overall Status
Completed
CT.gov ID
NCT03772587
Collaborator
(none)
68
61
5
14.5
1.1
0.1

Study Details

Study Description

Brief Summary

The purpose of this study is to evaluate the safety, tolerability, and efficacy of M281 administered to participants with generalized myasthenia gravis (gMG) who have an insufficient clinical response to ongoing standard of care therapy.

Condition or Disease Intervention/Treatment Phase
Phase 2

Study Design

Study Type:
Interventional
Actual Enrollment :
68 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
A Phase 2, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety, Tolerability, Efficacy, Pharmacokinetics and Pharmacodynamics of M281 Administered to Adults With Generalized Myasthenia Gravis
Actual Study Start Date :
Apr 10, 2019
Actual Primary Completion Date :
Jun 25, 2020
Actual Study Completion Date :
Jun 25, 2020

Arms and Interventions

Arm Intervention/Treatment
Placebo Comparator: Group 1

Other: Placebo
Placebo administered as intravenous (IV) infusion

Experimental: Group 2

Drug: M281
M281 administered as IV infusion

Experimental: Group 3

Drug: M281
M281 administered as IV infusion

Experimental: Group 4

Drug: M281
M281 administered as IV infusion

Experimental: Group 5

Drug: M281
M281 administered as IV infusion

Outcome Measures

Primary Outcome Measures

  1. Number of Participants With Treatment-emergent Adverse Events (TEAEs) as a Measure of Safety and Tolerability [Up to Day 113]

    An adverse event (AE) is any untoward medical event that occurs in a participant administered an investigational product and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product. TEAE are defined as any AE occurring during or after the initiation of the first infusion of study drug.

  2. Number of Participants With Treatment-emergent Serious Adverse Events (SAEs) [Up to Day 113]

    An AE is any untoward medical event that occurs in a participant administered an investigational product and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product. TEAEs are defined as any AE occurring during or after the initiation of the first infusion of study drug. An SAE is defined as any AE occurring at any dose that results in any of the following outcomes: death, life-threatening AE, hospitalization or prolongation of existing hospitalization, a persistent or significant disability/incapacity, or a congenital anomaly/birth defect.

  3. Number of Participants With Treatment-emergent Adverse Events of Special Interest (AESI) [Up to Day 113]

    An AE is any untoward medical event that occurs in a participant administered an investigational product and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product. TEAEs are defined as any AE occurring during or after the initiation of the first infusion of study drug. For this study, any common terminology criteria for adverse events (CTCAE) Grade 3 or higher event of severe infection or hypoalbuminemia was considered as AESI.

  4. Change From Baseline to Day 57 in the Myasthenia Gravis - Activities of Daily Living (MG-ADL) Total Score [Baseline to Day 57]

    The MG-ADL was used to assess the participant's MG symptom severity. It assesses eight functions (talking, chewing, swallowing, breathing, impairment of ability to brush teeth or comb hair, impairment of ability to arise from a chair, double vision, and eyelid droop) which were rated on a 4-point scale: 0 (no impairment) to 3 (severe impairment). The total score is the sum of the eight function scores and ranges from 0 to 24. Higher scores indicated greater symptom severity/difficulty in performing daily living activities.

Secondary Outcome Measures

  1. Change From Baseline in Total MG-ADL Score as a Function of Total Serum Immunoglobulin G (IgG) at Day 57 [Baseline and Day 57]

    Estimate of additional change from baseline in MG-ADL total score for every 10 percent (%) additional reduction in IgG based on a linear regression of change from baseline in MG-ADL total score on percent reduction in IgG at Day 57. The MG-ADL was used to assess the participant's MG symptom severity. It assesses eight functions (talking, chewing, swallowing, breathing, impairment of ability to brush teeth or comb hair, impairment of ability to arise from a chair, double vision, and eyelid droop) which were rated on a 4-point scale: 0 (no impairment) to 3 (severe impairment). The total score is the sum of the eight function scores and ranges from 0 to 24. Higher scores indicated greater symptom severity/difficulty in performing daily living activities.

  2. Change From Baseline in Total MG-ADL Score as a Response to Percent Change in Total Serum IgG, for Participants Positive for Anti-acetylcholine Receptor (Anti-AChR) Antibodies, at Day 57 [Baseline and Day 57]

    Estimate of additional change from baseline in MG-ADL total score for every 10% additional reduction in IgG based on a linear regression of change from baseline in MG-ADL total score on percent reduction in IgG at Day 57 in anti-AChR positive participants. The MG-ADL was used to assess participant's MG symptom severity. It assesses eight functions (talking, chewing, swallowing, breathing, impairment of ability to brush teeth or comb hair, impairment of ability to arise from a chair, double vision, and eyelid droop) which were rated on a 4-point scale: 0 (no impairment) to 3 (severe impairment). Total score is sum of eight function scores and ranges from 0 to 24. Higher scores indicated greater symptom severity/difficulty in performing daily living activities.

  3. Change From Baseline in Total Quantitative Myasthenia Gravis (QMG) Score as a Function of Total Serum IgG at Day 57 [Baseline and Day 57]

    Estimate of additional change from baseline in QMG total score for every 10% additional reduction in IgG based on a linear regression of change from baseline in QMG total score on percent reduction in IgG at Day 57. The QMG test was used to assess the participant's strength. The quantitative results of each of the 13 strength components were mapped to a 4-point scale where 0 equals to (=) none, 1= mild, 2= moderate and 3= severe. The total score is the sum of the 13 scale scores and ranges from 0 to 39. Higher scores indicated more severe impairment.

  4. Change From Baseline in Total QMG Score as a Response to Percent Change in Total Serum IgG, for Participants Positive for Anti-acetylcholine Receptor (Anti-AChR) Antibodies, at Day 57 [Baseline and Day 57]

    Estimate of additional change from baseline in QMG total score for every 10% additional reduction in IgG based on a linear regression of change from baseline in QMG total score on percent reduction in IgG at Day 57 in anti-AChR positive participants. The QMG test was used to assess the participant's strength. The quantitative results of each of the 13 strength components were mapped to a 4-point scale where 0 equals to (=) none, 1= mild, 2= moderate and 3= severe. The total score is the sum of the 13 scale scores and ranges from 0 to 39. Higher scores indicated more severe impairment.

  5. Number of Participants With a 2-, 3-, 4-, 5-, 6-, 7-, or Greater Than or Equal to (>=) 8-point Improvement in Total MG-ADL Score at Day 57 [Day 57]

    The MG-ADL was used to assess the participant's MG symptom severity. It assesses eight functions (talking, chewing, swallowing, breathing, impairment of ability to brush teeth or comb hair, impairment of ability to arise from a chair, double vision, and eyelid droop) which were rated on a 4-point scale: 0 (no impairment) to 3 (severe impairment). The total score is the sum of the eight function scores and ranges from 0 to 24. Higher scores indicated greater symptom severity/difficulty in performing daily living activities.

  6. Change From Baseline in Total QMG Score at Day 57 [Baseline and Day 57]

    The QMG test was used to assess the participant's strength. The quantitative results of each of the 13 strength components were mapped to a 4-point scale where 0 equals to (=) none, 1= mild, 2= moderate and 3= severe. The total score is the sum of the 13 scale scores and ranges from 0 to 39. Higher scores indicated more severe impairment.

  7. Number of Participants With a 3-, 4-, 5-, 6-, 7-, or >= 8-point Improvement in Total QMG Score at Day 57 [Day 57]

    The QMG test was used to assess the participant's strength. The quantitative results of each of the 13 strength components were mapped to a 4-point scale where 0 equals to (=) none, 1= mild, 2= moderate and 3= severe. The total score is the sum of the 13 scale scores and ranges from 0 to 39. Higher scores indicated more severe impairment.

  8. Change From Baseline in Total Revised Myasthenia Gravis Quality of Life - 15 (MG-QoL-15r) Scale Score at Day 57 [Baseline and Day 57]

    The MG-QoL15r was used to assess the participant's limitations related to living with MG. Each of the 15 questions were rated by the participant on a 3-point scale (0= Not at all, 1= somewhat, 2=very much) based on a recall period of "over the past few weeks". The total score is the sum of the 15 question scores and ranges from 0 to 30. Higher scores indicated more limitation.

  9. Change From Baseline in Total Serum IgG at Day 57 [Baseline and Day 57]

    Change from baseline in total serum IgG was reported. Blood samples were collected for analysis of total serum IgG.

  10. Change From Baseline in Total MG-ADL Score at Day 85 and Day 113 [Baseline, Day 85 and Day 113]

    The MG-ADL was used to assess the participant's MG symptom severity. It assesses eight functions (talking, chewing, swallowing, breathing, impairment of ability to brush teeth or comb hair, impairment of ability to arise from a chair, double vision, and eyelid droop) which were rated on a 4-point scale: 0 (no impairment) to 3 (severe impairment). The total score is the sum of the eight function scores and ranges from 0 to 24. Higher scores indicated greater symptom severity/difficulty in performing daily living activities.

  11. Change From Baseline in Total QMG Score at Day 85 and Day 113 [Baseline, Day 85 and Day 113]

    The QMG test was used to assess the participant's strength. The quantitative results of each of the 13 strength components were mapped to a 4-point scale where 0 equals to (=) none, 1= mild, 2= moderate and 3= severe. The total score is the sum of the 13 scale scores and ranges from 0 to 39. Higher scores indicated more severe impairment.

  12. Change From Baseline in Total MG-QoL15r Score at Day 85 and Day 113 [Baseline, Day 85 and Day 113]

    The MG-QoL15r was used to assess the participant's limitations related to living with MG. Each of the 15 questions were rated by the participant on a 3-point scale (0= Not at all, 1= somewhat, 2=very much) based on a recall period of "over the past few weeks". The total score is the sum of the 15 question scores and ranges from 0 to 30. Higher scores indicated more limitation.

  13. Number of Participants With Shift From Baseline in Myasthenia Gravis Foundation of America (MGFA) Classification at Day 57 [Baseline and Day 57]

    The MGFA was used to assess the participant's MG severity. MGFA classification identifies the subgroup participants with MG who share distinct clinical features or severity of disease: Class I (ocular MG), classes II, III and IV generalized MG with mild, moderate and severe disease, respectively; Class V MG crisis. Separate subclasses under classes II, III and IV are designed: "a" if the predominant weakness is affecting limb/axial weakness or both; subclass "b" if the predominant weakness is affecting oropharyngeal or respiratory muscles or both. In the MGFA classification, lower roman numerals mean less severity. Changes in MGFA classification (regardless of subclass) are categorized as "Improved" (example, III to II), "Same" (example, II to II), or "Worsened" (example, II to III).

  14. Number of Participants With Shift From Baseline in MGFA Classification to Day 113 [Baseline to Day 113]

    The MGFA was used to assess the participant's MG severity. MGFA classification identifies the subgroup participants with MG who share distinct clinical features or severity of disease: Class I (ocular MG), classes II, III and IV generalized MG with mild, moderate and severe disease, respectively; Class V MG crisis. Separate subclasses under classes II, III and IV are designed: "a" if the predominant weakness is affecting limb/axial weakness or both; subclass "b" if the predominant weakness is affecting oropharyngeal or respiratory muscles or both. In the MGFA classification, lower roman numerals mean less severity. Changes in MGFA classification (regardless of subclass) are categorized as "Improved" (example, III to II), "Same" (example, II to II), or "Worsened" (example, II to III).

  15. Change From Baseline in Total Serum IgG at Day 85 and Day 113 [Baseline, Day 85 and Day 113]

    Change from baseline in total serum IgG at Day 85 and Day 113 was analyzed. Blood samples were collected for analysis of total serum IgG.

  16. Serum Concentrations of Nipocalimab [Baseline (Pre Infusion and Post Infusion), Day 15 (Pre Infusion), Day 29 (Pre Infusion), Day 43 (Pre Infusion), Day 57 (Pre Infusion and Post Infusion) and Day 85]

    Serum concentrations of nipocalimab were reported. Concentrations below the lowest quantifiable concentration (< LLOQ) that is <0.15 microgram/milliliter (mcg/mL) was treated as zero in calculating the summary statistics.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No

Participants must be ≥18 years of age with a documented history of Generalized Myasthenia Gravis (gMG) and clinical signs/symptoms of gMG, not pregnant or breastfeeding, and no history of any neurologic disorder other than MG that might interfere with the accuracy of study assessments.

Additional, more specific criteria are defined in the protocol.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Momenta Investigational Site Phoenix Arizona United States 85013
2 Momenta Investigational Site Tucson Arizona United States 85724
3 Momenta Investigational Site Los Angeles California United States 90048
4 Momenta Investigational Site Orange California United States 92868
5 Momenta Investigational Site Stanford California United States 94305
6 Momenta Investigational Site Aurora Colorado United States 80045
7 Momenta Investigational Site New Haven Connecticut United States 06511
8 Momenta Investigational Site Boca Raton Florida United States 33487
9 Momenta Investigational Site Maitland Florida United States 32751
10 Momenta Investigational Site Port Charlotte Florida United States 33952
11 Momenta Investigational Site Saint Petersburg Florida United States 33713
12 Momenta Investigational Site Augusta Georgia United States 30912
13 Momenta Investigational Site Meridian Idaho United States 83642
14 Momenta Investigational Site Lake Barrington Illinois United States 60010
15 Momenta Investigational Site Fairway Kansas United States 66205
16 Momenta Investigational Site Boston Massachusetts United States 02114
17 Momenta Investigational Site Boston Massachusetts United States 02115
18 Momenta Investigational Site Boston Massachusetts United States 02215
19 Momenta Investigational Site Detroit Michigan United States 48202
20 Momenta Investigational Site East Lansing Michigan United States 48824
21 Momenta Investigational Site Columbia Missouri United States 65212
22 Momenta Investigational Site New Brunswick New Jersey United States 08550
23 Momenta Investigational Site New York New York United States 10021
24 Momenta Investigational Site Charlotte North Carolina United States 28207
25 Momenta Investigational Site Durham North Carolina United States 27710
26 Momenta Investigational Site Raleigh North Carolina United States 27607
27 Momenta Investigational Site Cincinnati Ohio United States 45267
28 Momenta Investigational Site Columbus Ohio United States 43210
29 Momenta Investigational Site Cordova Tennessee United States 38106
30 Momenta Investigational Site Austin Texas United States 78756
31 Momenta Investigational Site Round Rock Texas United States 78681
32 Momenta Investigational Site Leuven Vlaams Brabant Belgium 3000
33 Momenta Investigational Site Antwerp Belgium 2650
34 Momenta Investigational Site Bruxelles Belgium 1070
35 Momenta Investigational Site Edmonton Alberta Canada T6G 2G3
36 Momenta Investigational Site London Ontario Canada N6A 5A5
37 Momenta Investigational Site Toronto Ontario Canada M5G 2C4
38 Momenta Investigational Site Quebec City Quebec Canada G1J 1Z4
39 Momenta Investigational Site Gottingen Niedersachsen Germany 37075
40 Momenta Investigational Site Düsseldorf Germany 40225
41 Momenta Investigational Site Gummersbach Germany 51643
42 Momenta Investigational Site Munster Germany 48149
43 Momenta Investigational Site Cefalu Italy 90015
44 Momenta Investigational Site Messina Italy 98125
45 Momenta Investigational Site Milano Italy 20133
46 Momenta Investigational Site Krakow Poland 31-505
47 Momenta Investigational Site Lodz Poland 90-324
48 Momenta Investigational Site Warsaw Poland 01-684
49 Momenta Investigational Site Warsaw Poland 01-868
50 Momenta Investigational Site Barcelona Catalan Spain 08035
51 Momenta Investigational Site Barcelona Catalan Spain 08041
52 Momenta Investigational Site Badalona Cataluna Spain 08036
53 Momenta Investigational Site L'hospitalet De Llobregat Cataluna Spain 08907
54 Momenta Investigational Site San Sebastian Gipuzkoa Spain 20014
55 Momenta Investigational Site Madrid Spain 28007
56 Momenta Investigational Site Madrid Spain 28040
57 Momenta Investigational Site Sevilla Spain 41013
58 Momenta Investigational Site Valencia Spain 46026
59 Momenta Investigational Site Birmingham United Kingdom B15 2TH
60 Momenta Investigational Site Sheffield United Kingdom S11 9NE
61 Momenta Investigational Site Southampton United Kingdom SO16 6YD

Sponsors and Collaborators

  • Momenta Pharmaceuticals, Inc.

Investigators

  • Study Director: Momenta General Queries, Momenta Pharmaceuticals, Inc.

Study Documents (Full-Text)

More Information

Publications

None provided.
Responsible Party:
Momenta Pharmaceuticals, Inc.
ClinicalTrials.gov Identifier:
NCT03772587
Other Study ID Numbers:
  • MOM-M281-004
  • 2018-002247-28
First Posted:
Dec 11, 2018
Last Update Posted:
Oct 27, 2021
Last Verified:
Sep 1, 2021
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Studies a U.S. FDA-regulated Drug Product:
Yes
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by Momenta Pharmaceuticals, Inc.
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Placebo Nipocalimab (M281) 5 Milligrams/Kilogram (mg/kg) Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received intravenous (IV) infusion of placebo matching to nipocalimab once every 2 weeks (Q2W) starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once every 4 weeks (Q4W) starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Period Title: Overall Study
STARTED 14 14 13 13 14
COMPLETED 13 14 12 12 14
NOT COMPLETED 1 0 1 1 0

Baseline Characteristics

Arm/Group Title Placebo Nipocalimab 5 Milligrams/Kilogram (mg/kg) Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W) Total
Arm/Group Description Participants received intravenous (IV) infusion of placebo matching to nipocalimab once every 2 weeks (Q2W) starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once every 4 weeks (Q4W) starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57. Total of all reporting groups
Overall Participants 14 14 13 13 14 68
Age (Count of Participants)
<=18 years
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
Between 18 and 65 years
8
57.1%
9
64.3%
9
69.2%
9
69.2%
8
57.1%
43
63.2%
>=65 years
6
42.9%
5
35.7%
4
30.8%
4
30.8%
6
42.9%
25
36.8%
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
57.7
(17.85)
54.8
(17.64)
49
(19.54)
53.1
(15.4)
59.9
(15.03)
55
(17.07)
Sex: Female, Male (Count of Participants)
Female
8
57.1%
6
42.9%
9
69.2%
9
69.2%
5
35.7%
37
54.4%
Male
6
42.9%
8
57.1%
4
30.8%
4
30.8%
9
64.3%
31
45.6%
Race/Ethnicity, Customized (Count of Participants)
American Indian or Alaska Native
0
0%
0
0%
1
7.7%
0
0%
0
0%
1
1.5%
Asian
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
Black or African American
0
0%
2
14.3%
0
0%
0
0%
0
0%
2
2.9%
Native Hawaiian or Other Pacific Islander
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
White
12
85.7%
12
85.7%
12
92.3%
13
100%
14
100%
63
92.6%
More than one race
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
Unknown or Not Reported
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
Other
2
14.3%
0
0%
0
0%
0
0%
0
0%
2
2.9%
Race/Ethnicity, Customized (Count of Participants)
Hispanic or Latino
4
28.6%
1
7.1%
3
23.1%
1
7.7%
0
0%
9
13.2%
Not Hispanic or Latino
10
71.4%
13
92.9%
10
76.9%
11
84.6%
14
100%
58
85.3%
Unknown or Not Reported
0
0%
0
0%
0
0%
1
7.7%
0
0%
1
1.5%
Region of Enrollment (Count of Participants)
BELGIUM
1
7.1%
0
0%
0
0%
0
0%
0
0%
1
1.5%
CANADA
2
14.3%
2
14.3%
0
0%
0
0%
1
7.1%
5
7.4%
GERMANY
1
7.1%
3
21.4%
1
7.7%
0
0%
0
0%
5
7.4%
ITALY
2
14.3%
2
14.3%
1
7.7%
0
0%
0
0%
5
7.4%
POLAND
1
7.1%
2
14.3%
1
7.7%
3
23.1%
1
7.1%
8
11.8%
SPAIN
4
28.6%
0
0%
6
46.2%
2
15.4%
3
21.4%
15
22.1%
UNITED KINGDOM
0
0%
0
0%
0
0%
3
23.1%
1
7.1%
4
5.9%
UNITED STATES
3
21.4%
5
35.7%
4
30.8%
5
38.5%
8
57.1%
25
36.8%

Outcome Measures

1. Primary Outcome
Title Number of Participants With Treatment-emergent Adverse Events (TEAEs) as a Measure of Safety and Tolerability
Description An adverse event (AE) is any untoward medical event that occurs in a participant administered an investigational product and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product. TEAE are defined as any AE occurring during or after the initiation of the first infusion of study drug.
Time Frame Up to Day 113

Outcome Measure Data

Analysis Population Description
The safety population included all participants who received any amount of nipocalimab or placebo.
Arm/Group Title Placebo Nipocalimab 5 Milligrams/Kilogram (mg/kg) Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received intravenous (IV) infusion of placebo matching to nipocalimab once every 2 weeks (Q2W) starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once every 4 weeks (Q4W) starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 14 14 13 13 14
Count of Participants [Participants]
11
78.6%
12
85.7%
9
69.2%
12
92.3%
12
85.7%
2. Primary Outcome
Title Number of Participants With Treatment-emergent Serious Adverse Events (SAEs)
Description An AE is any untoward medical event that occurs in a participant administered an investigational product and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product. TEAEs are defined as any AE occurring during or after the initiation of the first infusion of study drug. An SAE is defined as any AE occurring at any dose that results in any of the following outcomes: death, life-threatening AE, hospitalization or prolongation of existing hospitalization, a persistent or significant disability/incapacity, or a congenital anomaly/birth defect.
Time Frame Up to Day 113

Outcome Measure Data

Analysis Population Description
The safety population included all participants who received any amount of nipocalimab or placebo.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 14 14 13 13 14
Count of Participants [Participants]
2
14.3%
0
0%
1
7.7%
0
0%
0
0%
3. Primary Outcome
Title Number of Participants With Treatment-emergent Adverse Events of Special Interest (AESI)
Description An AE is any untoward medical event that occurs in a participant administered an investigational product and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product. TEAEs are defined as any AE occurring during or after the initiation of the first infusion of study drug. For this study, any common terminology criteria for adverse events (CTCAE) Grade 3 or higher event of severe infection or hypoalbuminemia was considered as AESI.
Time Frame Up to Day 113

Outcome Measure Data

Analysis Population Description
The safety population included all participants who received any amount of nipocalimab or placebo.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 14 14 13 13 14
Count of Participants [Participants]
0
0%
0
0%
0
0%
0
0%
0
0%
4. Primary Outcome
Title Change From Baseline to Day 57 in the Myasthenia Gravis - Activities of Daily Living (MG-ADL) Total Score
Description The MG-ADL was used to assess the participant's MG symptom severity. It assesses eight functions (talking, chewing, swallowing, breathing, impairment of ability to brush teeth or comb hair, impairment of ability to arise from a chair, double vision, and eyelid droop) which were rated on a 4-point scale: 0 (no impairment) to 3 (severe impairment). The total score is the sum of the eight function scores and ranges from 0 to 24. Higher scores indicated greater symptom severity/difficulty in performing daily living activities.
Time Frame Baseline to Day 57

Outcome Measure Data

Analysis Population Description
Intent-to-Treat (ITT) population included all randomized participants. Here 'N' (number of participants analyzed) included all participants who were evaluated for this outcome measure (OM).
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 11 14 12 13 14
Mean (Standard Deviation) [score on a scale]
-1.8
(3.22)
-2.5
(2.41)
-3.9
(3.00)
-1.5
(2.82)
-3.9
(3.66)
5. Secondary Outcome
Title Change From Baseline in Total MG-ADL Score as a Function of Total Serum Immunoglobulin G (IgG) at Day 57
Description Estimate of additional change from baseline in MG-ADL total score for every 10 percent (%) additional reduction in IgG based on a linear regression of change from baseline in MG-ADL total score on percent reduction in IgG at Day 57. The MG-ADL was used to assess the participant's MG symptom severity. It assesses eight functions (talking, chewing, swallowing, breathing, impairment of ability to brush teeth or comb hair, impairment of ability to arise from a chair, double vision, and eyelid droop) which were rated on a 4-point scale: 0 (no impairment) to 3 (severe impairment). The total score is the sum of the eight function scores and ranges from 0 to 24. Higher scores indicated greater symptom severity/difficulty in performing daily living activities.
Time Frame Baseline and Day 57

Outcome Measure Data

Analysis Population Description
All participants over all arms with both an MG-ADL score and an IgG result at both baseline and Day 57 are included in the analysis. Participants are combined over all groups because the analysis correlates MG-ADL change with IgG change and arm was not included as a factor in the pre-specified analysis. Therefore, results by arm are not available.
Arm/Group Title Placebo/Nipocalimab (All Participants)
Arm/Group Description All participants combined over all arms received IV infusion either of placebo or nipocalimab (5 mg/kg [once Q4W]/30 mg/kg[once Q4W]/60 mg/kg[once Q4W]/60 mg/kg [once Q2W]) starting Day 1 up to Day 57.
Measure Participants 58
Least Squares Mean (Standard Error) [score on a scale per 10% IgG reduction]
-0.30
(0.136)
6. Secondary Outcome
Title Change From Baseline in Total MG-ADL Score as a Response to Percent Change in Total Serum IgG, for Participants Positive for Anti-acetylcholine Receptor (Anti-AChR) Antibodies, at Day 57
Description Estimate of additional change from baseline in MG-ADL total score for every 10% additional reduction in IgG based on a linear regression of change from baseline in MG-ADL total score on percent reduction in IgG at Day 57 in anti-AChR positive participants. The MG-ADL was used to assess participant's MG symptom severity. It assesses eight functions (talking, chewing, swallowing, breathing, impairment of ability to brush teeth or comb hair, impairment of ability to arise from a chair, double vision, and eyelid droop) which were rated on a 4-point scale: 0 (no impairment) to 3 (severe impairment). Total score is sum of eight function scores and ranges from 0 to 24. Higher scores indicated greater symptom severity/difficulty in performing daily living activities.
Time Frame Baseline and Day 57

Outcome Measure Data

Analysis Population Description
All anti-AChR positive participants over all arms with both an MG-ADL score and an IgG result at both baseline and Day 57 are included in the analysis. Participants are combined over all groups because the analysis correlates MG-ADL change with IgG change and arm was not included as a factor in the pre-specified analysis. Therefore, results by arm are not available.
Arm/Group Title Placebo/Nipocalimab (All Anti-AChR Positive Participants)
Arm/Group Description All anti-AChR positive participants combined over all arms received IV infusion of either placebo or nipocalimab (5 mg/kg [once Q4W]/30 mg/kg[once Q4W]/60 mg/kg[once Q4W]/60 mg/kg [once Q2W]) starting Day 1 up to Day 57.
Measure Participants 55
Least Squares Mean (Standard Error) [score on a scale per 10% IgG reduction]
-0.33
(0.144)
7. Secondary Outcome
Title Change From Baseline in Total Quantitative Myasthenia Gravis (QMG) Score as a Function of Total Serum IgG at Day 57
Description Estimate of additional change from baseline in QMG total score for every 10% additional reduction in IgG based on a linear regression of change from baseline in QMG total score on percent reduction in IgG at Day 57. The QMG test was used to assess the participant's strength. The quantitative results of each of the 13 strength components were mapped to a 4-point scale where 0 equals to (=) none, 1= mild, 2= moderate and 3= severe. The total score is the sum of the 13 scale scores and ranges from 0 to 39. Higher scores indicated more severe impairment.
Time Frame Baseline and Day 57

Outcome Measure Data

Analysis Population Description
All participants over all arms with both an QMG score and an IgG result at both baseline and Day 57 are included in the analysis. Participants are combined over all groups because the analysis correlates QMG change with IgG change and arm was not included as a factor in the pre-specified analysis. Therefore, results by arm are not available.
Arm/Group Title Placebo/Nipocalimab (All Participants)
Arm/Group Description All participants combined over all arms received IV infusion of either placebo or nipocalimab (5 mg/kg [once Q4W]/30 mg/kg[once Q4W]/60 mg/kg[once Q4W]/60 mg/kg [once Q2W]) starting Day 1 up to Day 57.
Measure Participants 58
Least Squares Mean (Standard Error) [score on a scale per 10% IgG reduction]
-0.38
(0.174)
8. Secondary Outcome
Title Change From Baseline in Total QMG Score as a Response to Percent Change in Total Serum IgG, for Participants Positive for Anti-acetylcholine Receptor (Anti-AChR) Antibodies, at Day 57
Description Estimate of additional change from baseline in QMG total score for every 10% additional reduction in IgG based on a linear regression of change from baseline in QMG total score on percent reduction in IgG at Day 57 in anti-AChR positive participants. The QMG test was used to assess the participant's strength. The quantitative results of each of the 13 strength components were mapped to a 4-point scale where 0 equals to (=) none, 1= mild, 2= moderate and 3= severe. The total score is the sum of the 13 scale scores and ranges from 0 to 39. Higher scores indicated more severe impairment.
Time Frame Baseline and Day 57

Outcome Measure Data

Analysis Population Description
All anti-AChR positive participants over all arms with both an QMG score and an IgG result at both baseline and Day 57 are included in the analysis. Participants are combined over all groups because the analysis correlates QMG change with IgG change and arm was not included as a factor in the pre-specified analysis. Therefore, results by arm are not available.
Arm/Group Title Placebo/Nipocalimab (All Anti-AChR Positive Participants)
Arm/Group Description All anti-AChR positive participants combined over all arms received IV infusion of either placebo or nipocalimab (5 mg/kg [once Q4W]/30 mg/kg[once Q4W]/60 mg/kg[once Q4W]/60 mg/kg [once Q2W]) starting Day 1 up to Day 57.
Measure Participants 55
Least Squares Mean (Standard Error) [score on a scale per 10% IgG reduction]
-0.45
(0.181)
9. Secondary Outcome
Title Number of Participants With a 2-, 3-, 4-, 5-, 6-, 7-, or Greater Than or Equal to (>=) 8-point Improvement in Total MG-ADL Score at Day 57
Description The MG-ADL was used to assess the participant's MG symptom severity. It assesses eight functions (talking, chewing, swallowing, breathing, impairment of ability to brush teeth or comb hair, impairment of ability to arise from a chair, double vision, and eyelid droop) which were rated on a 4-point scale: 0 (no impairment) to 3 (severe impairment). The total score is the sum of the eight function scores and ranges from 0 to 24. Higher scores indicated greater symptom severity/difficulty in performing daily living activities.
Time Frame Day 57

Outcome Measure Data

Analysis Population Description
Population analyzed included ITT participants for whom data was available at Day 57.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 11 14 12 13 14
2-point Improved
7
50%
9
64.3%
10
76.9%
7
53.8%
12
85.7%
3-point Improved
5
35.7%
9
64.3%
8
61.5%
5
38.5%
11
78.6%
4-point Improved
1
7.1%
5
35.7%
5
38.5%
3
23.1%
7
50%
5-point Improved
1
7.1%
2
14.3%
5
38.5%
2
15.4%
6
42.9%
6-point Improved
1
7.1%
1
7.1%
3
23.1%
1
7.7%
3
21.4%
7-point Improved
1
7.1%
1
7.1%
3
23.1%
0
0%
2
14.3%
>=8-point Improved
1
7.1%
0
0%
1
7.7%
0
0%
2
14.3%
10. Secondary Outcome
Title Change From Baseline in Total QMG Score at Day 57
Description The QMG test was used to assess the participant's strength. The quantitative results of each of the 13 strength components were mapped to a 4-point scale where 0 equals to (=) none, 1= mild, 2= moderate and 3= severe. The total score is the sum of the 13 scale scores and ranges from 0 to 39. Higher scores indicated more severe impairment.
Time Frame Baseline and Day 57

Outcome Measure Data

Analysis Population Description
ITT population included all randomized participants. Here 'N' (number of participants analyzed) included all participants who were evaluated for this OM.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 11 13 10 11 13
Mean (Standard Deviation) [score on a scale]
-3.7
(2.94)
-3.5
(4.10)
-4.1
(3.45)
-1.5
(2.54)
-5.9
(5.30)
11. Secondary Outcome
Title Number of Participants With a 3-, 4-, 5-, 6-, 7-, or >= 8-point Improvement in Total QMG Score at Day 57
Description The QMG test was used to assess the participant's strength. The quantitative results of each of the 13 strength components were mapped to a 4-point scale where 0 equals to (=) none, 1= mild, 2= moderate and 3= severe. The total score is the sum of the 13 scale scores and ranges from 0 to 39. Higher scores indicated more severe impairment.
Time Frame Day 57

Outcome Measure Data

Analysis Population Description
Population analyzed included ITT participants for whom data was available at Day 57.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 11 13 10 11 13
3-point Improved
8
57.1%
6
42.9%
6
46.2%
4
30.8%
10
71.4%
4-point Improved
5
35.7%
5
35.7%
6
46.2%
3
23.1%
10
71.4%
5-point Improved
5
35.7%
5
35.7%
5
38.5%
1
7.7%
8
57.1%
6-point Improved
2
14.3%
5
35.7%
4
30.8%
1
7.7%
5
35.7%
7-point Improved
2
14.3%
5
35.7%
1
7.7%
0
0%
3
21.4%
>= 8-point Improved
2
14.3%
3
21.4%
1
7.7%
0
0%
3
21.4%
12. Secondary Outcome
Title Change From Baseline in Total Revised Myasthenia Gravis Quality of Life - 15 (MG-QoL-15r) Scale Score at Day 57
Description The MG-QoL15r was used to assess the participant's limitations related to living with MG. Each of the 15 questions were rated by the participant on a 3-point scale (0= Not at all, 1= somewhat, 2=very much) based on a recall period of "over the past few weeks". The total score is the sum of the 15 question scores and ranges from 0 to 30. Higher scores indicated more limitation.
Time Frame Baseline and Day 57

Outcome Measure Data

Analysis Population Description
ITT population included all randomized participants. Here 'N' (number of participants analyzed) included all participants who were evaluated for this OM.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 11 14 12 13 14
Mean (Standard Deviation) [score on a scale]
-2.0
(4.58)
-1.7
(4.16)
-6.8
(5.73)
-1.2
(1.91)
-3.7
(5.37)
13. Secondary Outcome
Title Change From Baseline in Total Serum IgG at Day 57
Description Change from baseline in total serum IgG was reported. Blood samples were collected for analysis of total serum IgG.
Time Frame Baseline and Day 57

Outcome Measure Data

Analysis Population Description
ITT population included all randomized participants. Here 'N' (number of participants analyzed) included all participants who were evaluated for this OM.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 12 13 10 11 13
Mean (Standard Deviation) [gram/liter (g/L)]
-0.3
(1.82)
-1.5
(1.01)
-3.4
(1.01)
-1.7
(1.23)
-7.6
(2.27)
14. Secondary Outcome
Title Change From Baseline in Total MG-ADL Score at Day 85 and Day 113
Description The MG-ADL was used to assess the participant's MG symptom severity. It assesses eight functions (talking, chewing, swallowing, breathing, impairment of ability to brush teeth or comb hair, impairment of ability to arise from a chair, double vision, and eyelid droop) which were rated on a 4-point scale: 0 (no impairment) to 3 (severe impairment). The total score is the sum of the eight function scores and ranges from 0 to 24. Higher scores indicated greater symptom severity/difficulty in performing daily living activities.
Time Frame Baseline, Day 85 and Day 113

Outcome Measure Data

Analysis Population Description
ITT population included all randomized participants. Here 'N' (number of participants analyzed) included all participants who were evaluated for this OM and 'n' (number analyzed) included the number of participants evaluated for specific timepoints.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 12 14 12 13 14
Day 85
-2.2
(2.64)
-2.1
(2.40)
-3.7
(2.69)
-1.9
(2.29)
-3.6
(2.79)
Day 113
-2.6
(3.09)
-1.0
(2.25)
-2.8
(2.33)
-2.4
(2.78)
-2.6
(3.30)
15. Secondary Outcome
Title Change From Baseline in Total QMG Score at Day 85 and Day 113
Description The QMG test was used to assess the participant's strength. The quantitative results of each of the 13 strength components were mapped to a 4-point scale where 0 equals to (=) none, 1= mild, 2= moderate and 3= severe. The total score is the sum of the 13 scale scores and ranges from 0 to 39. Higher scores indicated more severe impairment.
Time Frame Baseline, Day 85 and Day 113

Outcome Measure Data

Analysis Population Description
ITT population included all randomized participants. Here 'N' (number of participants analyzed) included all participants who were evaluated for this OM and 'n' (number analyzed) included the number of participants evaluated for specific timepoints.
Arm/Group Title Placebo Nipocalimab 5 Milligram/Kilogram (mg/kg) Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 10 14 10 9 13
Day 85
-4.0
(2.62)
-3.6
(3.23)
-4.8
(2.49)
-2.0
(2.60)
-5.1
(3.52)
Day 113
-4.7
(3.04)
-2.1
(2.40)
-4.2
(3.08)
-3.2
(2.28)
-3.3
(5.69)
16. Secondary Outcome
Title Change From Baseline in Total MG-QoL15r Score at Day 85 and Day 113
Description The MG-QoL15r was used to assess the participant's limitations related to living with MG. Each of the 15 questions were rated by the participant on a 3-point scale (0= Not at all, 1= somewhat, 2=very much) based on a recall period of "over the past few weeks". The total score is the sum of the 15 question scores and ranges from 0 to 30. Higher scores indicated more limitation.
Time Frame Baseline, Day 85 and Day 113

Outcome Measure Data

Analysis Population Description
ITT population included all randomized participants. Here 'N' (number of participants analyzed) included all participants who were evaluated for this OM and 'n' (number analyzed) included the number of participants evaluated for specific timepoints.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 12 14 12 13 13
Day 85
-2.5
(2.84)
-2.9
(3.74)
-6.5
(5.66)
-0.7
(4.25)
-3.5
(5.61)
Day 113
-3.2
(3.90)
-1.6
(4.20)
-4.2
(4.32)
-1.0
(2.92)
-2.5
(6.09)
17. Secondary Outcome
Title Number of Participants With Shift From Baseline in Myasthenia Gravis Foundation of America (MGFA) Classification at Day 57
Description The MGFA was used to assess the participant's MG severity. MGFA classification identifies the subgroup participants with MG who share distinct clinical features or severity of disease: Class I (ocular MG), classes II, III and IV generalized MG with mild, moderate and severe disease, respectively; Class V MG crisis. Separate subclasses under classes II, III and IV are designed: "a" if the predominant weakness is affecting limb/axial weakness or both; subclass "b" if the predominant weakness is affecting oropharyngeal or respiratory muscles or both. In the MGFA classification, lower roman numerals mean less severity. Changes in MGFA classification (regardless of subclass) are categorized as "Improved" (example, III to II), "Same" (example, II to II), or "Worsened" (example, II to III).
Time Frame Baseline and Day 57

Outcome Measure Data

Analysis Population Description
ITT population included all randomized participants. Here 'N' (number of participants analyzed) included all participants who were evaluated for this OM.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 12 12 11 12 12
Improved
6
42.9%
3
21.4%
7
53.8%
4
30.8%
7
50%
Same
6
42.9%
9
64.3%
3
23.1%
8
61.5%
4
28.6%
Worsened
0
0%
0
0%
1
7.7%
0
0%
1
7.1%
18. Secondary Outcome
Title Number of Participants With Shift From Baseline in MGFA Classification to Day 113
Description The MGFA was used to assess the participant's MG severity. MGFA classification identifies the subgroup participants with MG who share distinct clinical features or severity of disease: Class I (ocular MG), classes II, III and IV generalized MG with mild, moderate and severe disease, respectively; Class V MG crisis. Separate subclasses under classes II, III and IV are designed: "a" if the predominant weakness is affecting limb/axial weakness or both; subclass "b" if the predominant weakness is affecting oropharyngeal or respiratory muscles or both. In the MGFA classification, lower roman numerals mean less severity. Changes in MGFA classification (regardless of subclass) are categorized as "Improved" (example, III to II), "Same" (example, II to II), or "Worsened" (example, II to III).
Time Frame Baseline to Day 113

Outcome Measure Data

Analysis Population Description
ITT population included all randomized participants. Here 'N' (number of participants analyzed) included all participants who were evaluated for this OM.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 9 9 8 7 11
Improved
3
21.4%
2
14.3%
3
23.1%
2
15.4%
3
21.4%
Same
6
42.9%
5
35.7%
4
30.8%
5
38.5%
5
35.7%
Worsened
0
0%
2
14.3%
1
7.7%
0
0%
3
21.4%
19. Secondary Outcome
Title Change From Baseline in Total Serum IgG at Day 85 and Day 113
Description Change from baseline in total serum IgG at Day 85 and Day 113 was analyzed. Blood samples were collected for analysis of total serum IgG.
Time Frame Baseline, Day 85 and Day 113

Outcome Measure Data

Analysis Population Description
ITT population included all randomized participants. Here 'N' (number of participants analyzed) included all participants who were evaluated for this OM and 'n' (number analyzed) included the number of participants evaluated for specific timepoints.
Arm/Group Title Placebo Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of placebo matching to nipocalimab once Q2W starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 11 14 11 9 13
Day 85
-0.5
(1.02)
-1.4
(1.93)
-3.8
(1.28)
-1.2
(1.02)
-5.7
(2.30)
Day 113
-0.6
(1.19)
-0.7
(1.48)
-1.2
(0.78)
-0.7
(1.09)
-2.2
(1.73)
20. Secondary Outcome
Title Serum Concentrations of Nipocalimab
Description Serum concentrations of nipocalimab were reported. Concentrations below the lowest quantifiable concentration (< LLOQ) that is <0.15 microgram/milliliter (mcg/mL) was treated as zero in calculating the summary statistics.
Time Frame Baseline (Pre Infusion and Post Infusion), Day 15 (Pre Infusion), Day 29 (Pre Infusion), Day 43 (Pre Infusion), Day 57 (Pre Infusion and Post Infusion) and Day 85

Outcome Measure Data

Analysis Population Description
The safety population included all participants who received any amount of nipocalimab or placebo. Here 'n' (number analyzed) included the number of participants evaluated for specific timepoints.
Arm/Group Title Nipocalimab 5 mg/kg Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received IV infusion of 5 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
Measure Participants 14 13 13 14
Baseline (Pre Infusion)
0.0
(0.0)
0.02
(0.066)
0.0
(0.0)
0.0
(0.0)
Baseline (Post Infusion)
107.35
(39.826)
708.07
(95.185)
1739.93
(287.127)
1794.93
(1308.695)
Day 15 (Pre Infusion)
0.0
(0.0)
0.0
(0.0)
22.56
(36.198)
25.38
(33.402)
Day 29 (Pre Infusion)
0.0
(0.0)
0.02
(0.052)
0.0
(0.0)
58.34
(113.158)
Day 43 (Pre Infusion)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
61.28
(80.513)
Day 57 (Pre Infusion)
0.0
(0.0)
0.02
(0.71)
0.0
(0.0)
35.95
(54.440)
Day 57 (Post Infusion)
105.65
(43.331)
752.47
(154.608)
0.0
(0.0)
1568.92
(288.500)
Day 85
0.0
(0.0)
0.03
(0.08)
0.0
(0.0)
0.0
(0.0)

Adverse Events

Time Frame Up to Day 113
Adverse Event Reporting Description The safety population included all participants who received any amount of nipocalimab or placebo.
Arm/Group Title Placebo Nipocalimab 5 Milligrams/Kilogram (mg/kg) Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Arm/Group Description Participants received intravenous (IV) infusion of placebo matching to nipocalimab once every 2 weeks (Q2W) starting Day 1 up to Day 57. Participants received IV infusion of 5 mg/kg nipocalimab once every 4 weeks (Q4W) starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 30 mg/kg nipocalimab once Q4W starting Day 1 up to Day 57. To maintain blinding, participants received matching placebo on Days 15 and 43. Participants received IV infusion of 60 mg/kg nipocalimab single dose on Day 1. To maintain blinding, participants received matching placebo on Days 15, 29, 43 and 57. Participants received IV infusion of 60 mg/kg nipocalimab once Q2W starting Day 1 up to Day 57.
All Cause Mortality
Placebo Nipocalimab 5 Milligrams/Kilogram (mg/kg) Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Serious Adverse Events
Placebo Nipocalimab 5 Milligrams/Kilogram (mg/kg) Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 2/14 (14.3%) 0/14 (0%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Musculoskeletal and connective tissue disorders
Musculoskeletal Pain 0/14 (0%) 0/14 (0%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Nervous system disorders
Ischaemic Stroke 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Myasthenia Gravis 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Other (Not Including Serious) Adverse Events
Placebo Nipocalimab 5 Milligrams/Kilogram (mg/kg) Nipocalimab 30 mg/kg Nipocalimab 60 mg/kg Nipocalimab 60 mg/kg (Q2W)
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 10/14 (71.4%) 12/14 (85.7%) 8/13 (61.5%) 12/13 (92.3%) 12/14 (85.7%)
Blood and lymphatic system disorders
Iron Deficiency Anaemia 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Thrombocytopenia 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Cardiac disorders
Palpitations 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Ear and labyrinth disorders
Tinnitus 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Endocrine disorders
Hypothyroidism 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Eye disorders
Blepharitis 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Eye Pain 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Eyelid Ptosis 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Vision Blurred 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Gastrointestinal disorders
Abdominal Pain Upper 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 1/14 (7.1%)
Constipation 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Diarrhoea 1/14 (7.1%) 1/14 (7.1%) 1/13 (7.7%) 2/13 (15.4%) 2/14 (14.3%)
Dysphagia 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Gastric Ulcer 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Gastrooesophageal Reflux Disease 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Nausea 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Salivary Hypersecretion 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Toothache 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Vomiting 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
General disorders
Chest Pain 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Feeling Cold 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Feeling Hot 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Hernia 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Infusion Site Pain 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Malaise 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Oedema Peripheral 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 2/14 (14.3%)
Peripheral Swelling 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Vessel Puncture Site Pruritus 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Vessel Puncture Site Swelling 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Infections and infestations
Asymptomatic Bacteriuria 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Bronchitis 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Cellulitis 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Conjunctivitis 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Herpes Zoster 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Hordeolum 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Influenza 0/14 (0%) 1/14 (7.1%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Lower Respiratory Tract Infection 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Nasopharyngitis 0/14 (0%) 1/14 (7.1%) 1/13 (7.7%) 2/13 (15.4%) 2/14 (14.3%)
Pharyngitis 0/14 (0%) 0/14 (0%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Pneumonia 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Sinusitis 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Upper Respiratory Tract Infection 1/14 (7.1%) 1/14 (7.1%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Urinary Tract Infection 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 2/14 (14.3%)
Viral Upper Respiratory Tract Infection 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Injury, poisoning and procedural complications
Contusion 0/14 (0%) 1/14 (7.1%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Fall 0/14 (0%) 1/14 (7.1%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Limb Injury 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Muscle Rupture 0/14 (0%) 0/14 (0%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Muscle Strain 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Palate Injury 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Skin Laceration 0/14 (0%) 0/14 (0%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Spinal Compression Fracture 0/14 (0%) 0/14 (0%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Investigations
Alanine Aminotransferase Increased 1/14 (7.1%) 1/14 (7.1%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Aspartate Aminotransferase Increased 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Bacterial Test 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Blood Creatine Phosphokinase Increased 0/14 (0%) 0/14 (0%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Blood Pressure Increased 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Carbohydrate Antigen 19-9 Increased 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Helicobacter Test Positive 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Liver Function Test Increased 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Lymphocyte Count Decreased 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Neutrophil Count Increased 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Neutrophil Percentage Increased 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Urine Analysis Abnormal 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Weight Decreased 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Metabolism and nutrition disorders
Glucose Tolerance Impaired 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Hyperglycaemia 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Hypophosphataemia 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Musculoskeletal and connective tissue disorders
Arthralgia 0/14 (0%) 0/14 (0%) 0/13 (0%) 2/13 (15.4%) 0/14 (0%)
Arthritis 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Back Pain 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 1/13 (7.7%) 1/14 (7.1%)
Muscle Spasms 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Muscle Twitching 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 1/14 (7.1%)
Musculoskeletal Chest Pain 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Musculoskeletal Pain 0/14 (0%) 0/14 (0%) 0/13 (0%) 2/13 (15.4%) 0/14 (0%)
Neck Pain 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Rotator Cuff Syndrome 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Spinal Pain 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Nervous system disorders
Dizziness 0/14 (0%) 0/14 (0%) 1/13 (7.7%) 2/13 (15.4%) 0/14 (0%)
Dysgeusia 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Headache 1/14 (7.1%) 2/14 (14.3%) 1/13 (7.7%) 2/13 (15.4%) 1/14 (7.1%)
Hypoaesthesia 0/14 (0%) 0/14 (0%) 0/13 (0%) 2/13 (15.4%) 0/14 (0%)
Mononeuropathy 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Myasthenia Gravis 1/14 (7.1%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Presyncope 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Tension Headache 0/14 (0%) 0/14 (0%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Reproductive system and breast disorders
Dysmenorrhoea 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Respiratory, thoracic and mediastinal disorders
Catarrh 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Cough 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Dysphonia 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Dyspnoea 0/14 (0%) 0/14 (0%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Oropharyngeal Pain 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Skin and subcutaneous tissue disorders
Dermatitis Allergic 0/14 (0%) 0/14 (0%) 0/13 (0%) 1/13 (7.7%) 0/14 (0%)
Erythema 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Pruritus 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Rash 0/14 (0%) 1/14 (7.1%) 0/13 (0%) 0/13 (0%) 3/14 (21.4%)
Rash Erythematous 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Skin Swelling 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Swelling Face 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)
Vascular disorders
Brachiocephalic Vein Thrombosis 0/14 (0%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 1/14 (7.1%)
Hypertension 0/14 (0%) 2/14 (14.3%) 1/13 (7.7%) 0/13 (0%) 0/14 (0%)
Hypotension 1/14 (7.1%) 0/14 (0%) 0/13 (0%) 0/13 (0%) 0/14 (0%)

Limitations/Caveats

Limitations to this study include the small sample sizes of each treatment arm and the study activity disruption due to the COVID-19 pandemic, especially the missed Quantitative Myasthenia Gravis (QMG) assessments which hampered the analysis of the endpoint.

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

If an investigator wishes to publish information from the study, a copy of the manuscript must be provided to the sponsor for review at least 60 days before submission for publication or presentation. If requested by the sponsor in writing, the investigator will withhold such publication for up to an additional 60 days.

Results Point of Contact

Name/Title DIRECTOR CLINICAL RESEARCH
Organization Momenta Pharmaceuticals, Inc.
Phone 844-434-4210
Email ClinicalTrialDisclosure@its.jnj.com
Responsible Party:
Momenta Pharmaceuticals, Inc.
ClinicalTrials.gov Identifier:
NCT03772587
Other Study ID Numbers:
  • MOM-M281-004
  • 2018-002247-28
First Posted:
Dec 11, 2018
Last Update Posted:
Oct 27, 2021
Last Verified:
Sep 1, 2021