Actively Recruiting

Phase 3
Age: 18Years +
All Genders
NCT04951622

A Study of Nipocalimab Administered to Adults With Generalized Myasthenia Gravis

Led by Janssen Research & Development, LLC · Updated on 2026-03-03

199

Participants Needed

112

Research Sites

402 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

The purpose of this study is to evaluate the efficacy and safety of nipocalimab compared to placebo in participants with generalized myasthenia gravis (gMG). The purpose of the subcutaneous substudy is to evaluate how well it works in the body (pharmacodynamic \[PD\]) when given as an injection under the skin (subcutaneous) compared to when given through a vein (intravenous) in participants with gMG.

CONDITIONS

Official Title

A Study of Nipocalimab Administered to Adults With Generalized Myasthenia Gravis

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Diagnosis of generalized myasthenia gravis (gMG) meeting MGFA Clinical Classification Class II a/b, III a/b, or IVa/b at screening
  • MG-ADL score of 6 or higher at screening and baseline
  • Sufficient venous access for drug infusion and blood sampling
  • Women of childbearing potential must have negative serum and urine pregnancy tests before treatment
  • Male participants must agree not to donate sperm during the study and for 90 days after last dose
  • For subcutaneous substudy participants: reasonable abdominal skin area for injection
  • For subcutaneous substudy participants: willing to maintain stable corticosteroid and/or immunosuppressant doses for the first 8 weeks
Not Eligible

You will not qualify if you...

  • Confirmed or suspected immunodeficiency syndrome unrelated to gMG treatment or family history of congenital immunodeficiency unless confirmed absent
  • MGFA Class I disease, MG crisis at screening, history of MG crisis within 1 month, or fixed weakness
  • Thymectomy within 12 months before screening or planned during the study
  • Known allergies or intolerance to nipocalimab or its ingredients
  • Recent heart attack, unstable ischemic heart disease, or stroke within 12 weeks before screening
  • For subcutaneous substudy Cohort 1: recent tapering of MG medication in open-label extension or clinical deterioration in the prior month
  • For subcutaneous substudy Cohort 2: history of unprovoked pulmonary embolism within 1 year or recurrent deep vein thrombosis history

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 112 locations

1

Neuromuscular Research Center and Clinic

Paradise Valley, Arizona, United States, 85028

Actively Recruiting

2

HonorHealth Neurology

Scottsdale, Arizona, United States, 85251

Completed

3

University of Southern California

Los Angeles, California, United States, 90033

Completed

4

Stanford University

Palo Alto, California, United States, 94304

Completed

5

Care Access Research

Pasadena, California, United States, 91101

Actively Recruiting

6

University of Colorado Anschutz Medical Campus

Aurora, Colorado, United States, 80045

Actively Recruiting

7

Yale New Haven Hospital

New Haven, Connecticut, United States, 06519

Actively Recruiting

8

FM Clinical Research, LLC South Florida Neurology Associates, P. A.

Boca Raton, Florida, United States, 33487

Actively Recruiting

9

University of Florida Health Jacksonville

Jacksonville, Florida, United States, 32209

Completed

10

Medsol Clinical Research Center Inc

Port Charlotte, Florida, United States, 33952

Actively Recruiting

11

University of South Florida

Tampa, Florida, United States, 33612

Actively Recruiting

12

Augusta University

Augusta, Georgia, United States, 30912-3125

Completed

13

University of Kansas Medical Center

Kansas City, Kansas, United States, 66160

Actively Recruiting

14

St. Elizabeth Medical Center

Boston, Massachusetts, United States, 02135

Completed

15

Lahey Hospital & Medical Center

Burlington, Massachusetts, United States, 01805

Completed

16

Washington University School Of Medicine

St Louis, Missouri, United States, 63110

Completed

17

Duke University School of Medicine

Durham, North Carolina, United States, 27710

Actively Recruiting

18

University of Cincinnati

Cincinnati, Ohio, United States, 45219

Completed

19

Cleveland Clinic

Cleveland, Ohio, United States, 44145

Actively Recruiting

20

The Ohio State University

Columbus, Ohio, United States, 43210

Completed

21

Medical University of South Carolina

Charleston, South Carolina, United States, 29425

Actively Recruiting

22

Wesley Neurology

Cordova, Tennessee, United States, 38018

Completed

23

UT Southwestern Medical Center

Dallas, Texas, United States, 75390

Completed

24

University of Vermont

Burlington, Vermont, United States, 05401

Completed

25

Melbourne Neurology Group

North Melbourne, Australia, 3051

Completed

26

Gold Coast University Hospital

Southport, Australia, 4215

Actively Recruiting

27

ULB Hôpital Erasme

Anderlecht, Belgium, 1070

Actively Recruiting

28

AZ Sint Jan Brugge Oostende AV

Bruges, Belgium, 8000

Actively Recruiting

29

Cliniques Universitaires Saint Luc

Brussels, Belgium, 1200

Actively Recruiting

30

AZ Sint-Lucas

Ghent, Belgium, 9000

Actively Recruiting

31

University Hospitals Leuven

Leuven, Belgium, 3000

Actively Recruiting

32

The Ottawa Hospital Research Institute

Ottawa, Ontario, Canada, K1Y 4E9

Actively Recruiting

33

Toronto General Hospital

Toronto, Ontario, Canada, M5G 2C4

Actively Recruiting

34

McGill University

Montreal, Quebec, Canada, H3A 2B4

Completed

35

Beijing Tiantan Hospital, Capital Medical University

Beijing, China, 100050

Actively Recruiting

36

Xuanwu Hospital ,Capital Medical University

Beijing, China, 100053

Completed

37

Beijing Hospital

Beijing, China, 100730

Actively Recruiting

38

The First Bethune Hospital of Jilin University

Changchun, China, 130021

Actively Recruiting

39

Xiangya Hospital Central South University

Changsha, China, 410008

Actively Recruiting

40

West China Hospital of Sichuan University

Chengdu, China, 610041

Completed

41

Fujian Medical University Union Hospital

Fuzhou, China, 350001

Completed

42

The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine

Guangzhou, China, 510405

Actively Recruiting

43

Sir Run Run Shaw Hospital Zhejiang University School of Medicine

Hangzhou, China, 310020

Completed

44

Qianfoshan hospital of Shandong Province

Jinan, China, 250014

Actively Recruiting

45

Qilu Hospital of Shandong University

Jinan, China, 250014

Completed

46

Huashan Hospital Fudan University

Shanghai, China, 200040

Actively Recruiting

47

Tianjin Medical University General Hospital

Tianjin, China, 300052

Actively Recruiting

48

The Second Affiliated Hospital of Air Force Medical University - Tangdu Hospital

Xi'an, China, 710038

Actively Recruiting

49

Neurologie a rehabilitace Skopalíkova

Brno, Czechia, 615 00

Actively Recruiting

50

Fakultni nemocnice Brno

Brno, Czechia, 625 00

Completed

51

Vseobecna Fakultní Nemocnice

Prague, Czechia, 12808

Actively Recruiting

52

Aalborg University Hospital

Aalborg, Denmark, 9000

Completed

53

Rigshospitalet

København Ø, Denmark, 2100

Completed

54

Hopital Pierre Wertheimer

Bron, France, 69500

Actively Recruiting

55

CHU Grenoble

Grenoble, France, 38043

Completed

56

Hopital de la Pitie Salpetriere

Paris, France, 75013

Actively Recruiting

57

Hopital PASTEUR

Provence-Alpes-Côte d'Azur, France, 06000

Actively Recruiting

58

Hopital PASTEUR

Provence-Alpes-Côte d'Azur, France, 06000

Completed

59

NeuroCure Clinical Research Center

Berlin, Germany, 10117

Actively Recruiting

60

Universitatsmedizin Gottingen

Göttingen, Germany, 37075

Completed

61

Universitaetsklinikum Leipzig

Leipzig, Germany, 04103

Completed

62

Universitatsklinikum Schleswig Holstein Campus Lubeck

Lübeck, Germany, 23538

Completed

63

Universitatsklinikum Ulm

Ulm, Germany, 89081

Completed

64

DKD HELIOS Klinik Wiesbaden, Fachbereich Neurologie

Wiesbaden, Germany, 65191

Completed

65

U.O.P.I. di Psichiatria

Catania, Italy, 95100

Completed

66

Fondazione Istituto G. Giglio

Cefalù, Italy, 90015

Actively Recruiting

67

Istituto Neurologico Carlo Besta

Milan, Italy, 20133

Actively Recruiting

68

Azienda Ospedaliera Univ.- Università Degli studi della Campania - Luigi Vanvitelli

Naples, Italy, 80138

Actively Recruiting

69

IRCCS C. Mondino, Istituto Neurologico Nazionale, Fondazione

Pavia, Italy, 27100

Actively Recruiting

70

Azienda ospedaliera Sant'Andrea di Roma- Università di Roma La Sapienza

Roma, Italy, 00189

Completed

71

Policlinico Universitario Agostino Gemelli

Roma, Italy, 168

Actively Recruiting

72

Chiba University Hospital

Chiba, Japan, 260 8677

Completed

73

General Hanamaki Hospital

Hanamaki, Japan, 025-0082

Actively Recruiting

74

Hiroshima University Hospital

Hiroshima, Japan, 734 8551

Actively Recruiting

75

Teikyo University Hospital

Itabashi Ku, Japan, 173 8606

Actively Recruiting

76

St Marianna University Hospital

Kawasaki Shi, Japan, 216 8511

Actively Recruiting

77

Kagawa University Hospital

Kita Gun, Japan, 761 0793

Completed

78

Kumamoto University Hospital

Kumamoto, Japan, 860-8556

Completed

79

Iwate Medical University Hospital

Morioka, Japan, 020-8505

Actively Recruiting

80

National Hospital Organization Nagoya Medical Center

Nagoya, Japan, 460-0001

Completed

81

Niigata City General Hospital

Niigata, Japan, 950-1197

Actively Recruiting

82

Hyogo College of Medicine Hospital

Nishinomiya-Shi, Japan, 663-8501

Actively Recruiting

83

Sapporo Medical University Hospital

Sapporo, Japan, 0608556

Completed

84

Hokkaido Medical Center

Sapporo, Japan, 063 0005

Actively Recruiting

85

National Hospital Organization Sendai Medical Center

Sendai, Japan, 983-8520

Actively Recruiting

86

Tokushima University Hospital

Tokushima, Japan, 770-8503

Completed

87

Tokyo Medical University Hospital

Tokyo, Japan, 160-0023

Completed

88

iBiomed Research Unit

Aguascalientes, Mexico, 20010

Completed

89

Consultorio Dr. Miguel Cortes

Cuernavaca, Mexico, 62448

Actively Recruiting

90

Hospital Civil de Guadalajara Fray Antonio Alcalde

Guadalajara, Mexico, 44280

Actively Recruiting

91

Neurocentrum Bydgoszcz Sp Z O O

Bydgoszcz, Poland, 85 796

Actively Recruiting

92

NZOZ Wielospecjalistyczna Poradnia Lekarska 'Synapsis'

Katowice, Poland, 40-123

Actively Recruiting

93

Centrum Neurologii Klinicznej Krakowska Akademia Neurologii

Krakow, Poland, 31 505

Actively Recruiting

94

Prywatny Gabinet Lekarski

Lublin, Poland, 20 093

Actively Recruiting

95

Centrum Medyczne NeuroProtect

Warsaw, Poland, 01-684

Actively Recruiting

96

Pusan National University Hospital

Busan, South Korea, 49241

Actively Recruiting

97

Kyungpook National University Chilgok Hospital

Daegu, South Korea, 41404

Actively Recruiting

98

Kyungpook National University Hospital

Daegu, South Korea, 41944

Completed

99

Severance Hospital Yonsei University Health System

Seoul, South Korea, 120-752

Actively Recruiting

100

Hosp. Gral. Univ. de Alicante

Alicante, Spain, 03010

Actively Recruiting

101

Hosp. de La Santa Creu I Sant Pau

Barcelona, Spain, 08025

Actively Recruiting

102

Hosp Univ Vall D Hebron

Barcelona, Spain, 08035

Actively Recruiting

103

Hosp Clinic de Barcelona

Barcelona, Spain, 8036

Actively Recruiting

104

Hosp. Univ. de Basurto

Bilbao, Spain, 48013

Actively Recruiting

105

Hosp. Virgen Macarena

Seville, Spain, 41009

Actively Recruiting

106

Hosp. Virgen Del Rocio

Seville, Spain, 41013

Completed

107

Hosp. Univ. I Politecni La Fe

Valencia, Spain, 46026

Actively Recruiting

108

Karlstad Central Hospital

Karlstad, Sweden, 651 85

Completed

109

Karolinska Universitetssjukhuset Solna

Stockholm, Sweden, 171 76

Actively Recruiting

110

China Medical University Hospital

Taichung, Taiwan, 40447

Completed

111

Shin Kong Wu Ho Su Memorial Hospital

Taipei, Taiwan, 111

Actively Recruiting

112

Taipei Veterans General Hospital

Taipei, Taiwan, 11217

Actively Recruiting

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Research Team

S

Study Contact

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

TRIPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

3

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A Study of Nipocalimab Administered to Adults With Generalized Myasthenia Gravis | DecenTrialz