Comparative Efficacy of Nipocalimab and Efgartigimod in Participants With Generalized Myasthenia Gravis

NCT ID: NCT07217587

Last Updated: 2026-01-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

115 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-05

Study Completion Date

2028-09-04

Brief Summary

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The purpose of this study is to assess how well nipocalimab works when compared to efgartigimod in participants with generalized myasthenia gravis (a condition in which body's immune system mistakenly attacks and damages the connection between nerves and muscles causing muscle weakness).

Detailed Description

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Conditions

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Myasthenia Gravis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Arm 1: Nipocalimab

Participants will receive nipocalimab intravenously (IV), at a loading dose on Day 1 followed by maintenance dosing once every 2 weeks (q2w) until Week 12.

Group Type EXPERIMENTAL

Nipocalimab

Intervention Type DRUG

Nipocalimab will be administered intravenously.

Arm 2: Efgartigimod

Participants will receive efgartigimod IV, once a week for 4 weeks starting from Day 1. Eligible participants will be given the option to switch to Arm 3 between Week 4 and Week 12.

Group Type ACTIVE_COMPARATOR

Efgartigimod

Intervention Type DRUG

Efgartigimod will be administered intravenously.

Arm 3: Treatment Switch (Nipocalimab)

Participants previously treated with efgartigimod, who are directly enrolled in this arm, and eligible participants switching from Arm 2 will receive nipocalimab IV at a loading dose on Switch Day 1 followed by maintenance dosing q2w until Switch Week 12.

Group Type EXPERIMENTAL

Nipocalimab

Intervention Type DRUG

Nipocalimab will be administered intravenously.

Interventions

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Nipocalimab

Nipocalimab will be administered intravenously.

Intervention Type DRUG

Efgartigimod

Efgartigimod will be administered intravenously.

Intervention Type DRUG

Other Intervention Names

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JNJ-80202135 JNJ-86507083

Eligibility Criteria

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Inclusion Criteria

For all arms:

* Medically stable on the basis of physical examination, medical history, vital signs, clinical laboratory tests, and 12-lead electrocardiogram (ECG) performed at screening
* Diagnosis of myasthenia gravis (MG) with generalized muscle weakness meeting the clinical criteria for generalized MG (gMG) as defined by the Myasthenia gravis foundation of America (MGFA) clinical classification class II a/b, III a/b, or IV a/b at screening and positive for acetylcholine receptor (AChR) antibodies
* Myasthenia Gravis-Activities of Daily Living (MG-ADL) score of greater than or equal to (\>=) 5 with less than (\<) 50% of symptoms coming from ocular MG-ADL sub-scores at study screening and baseline (Day 1) visits

Criteria specific to Arms 1 and 2 only:

\- Has suboptimal response to current stable therapy for gMG according to the investigator or has discontinued corticosteroids and/or immunosuppressants/immunomodulators including eculizumab or other novel approved immune agents at least 4 weeks prior to baseline due to intolerance or lack of efficacy

Criteria specific to Arm 3:

\- Treatment with efgartigimod IV or subcutaneous (SC) for \>=1 cycle, and the final cycle is consistent with product information

Exclusion Criteria

* Any confirmed or suspected clinical immunodeficiency syndrome not related to treatment of his/her gMG, or has a family history of congenital or hereditary immunodeficiency unless confirmed absent in the participant
* Had a thymectomy within 1 year prior to baseline, or thymectomy is planned during the study
* Currently has a malignancy or has a history of malignancy within 3 years before baseline

Criteria specific to Arms 1 and 2 only:

\- Has received treatment for MG with an FcRn-targeting therapy

Criteria specific to Arm 3 only:

\- Is currently taking IgG monoclonal antibody therapeutics, or Fc-conjugated therapeutic agents, including factor or enzyme replacement, with the exception of efgartigimod
Minimum Eligible Age

18 Years

Maximum Eligible Age

74 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Janssen Research & Development, LLC

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Janssen Research & Development, LLC Clinical Trial

Role: STUDY_DIRECTOR

Janssen Research & Development, LLC

Locations

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SFM Clinical Research LLC

Boca Raton, Florida, United States

Site Status RECRUITING

HSHS St. Elizabeth's Hospital

O'Fallon, Illinois, United States

Site Status RECRUITING

Henry Ford Hospital

Detroit, Michigan, United States

Site Status RECRUITING

Rambam Medical Center

Haifa, , Israel

Site Status RECRUITING

Sourasky Medical Center

Tel Aviv, , Israel

Site Status RECRUITING

Countries

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United States Israel

Central Contacts

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Study Contact

Role: CONTACT

844-434-4210

Other Identifiers

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80202135MYG3002

Identifier Type: OTHER

Identifier Source: secondary_id

2025-521130-28-00

Identifier Type: REGISTRY

Identifier Source: secondary_id

80202135MYG3002

Identifier Type: -

Identifier Source: org_study_id

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