A Study to Evaluate the Clinical Outcomes of Efgartigimod PH20 SC in Adults With New-onset Generalized Myasthenia Gravis (gMG)

NCT ID: NCT06909214

Last Updated: 2026-01-08

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE4

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-04-17

Study Completion Date

2027-05-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The main purpose of this study is to measure how well adults with new-onset gMG (which means they've had generalized disease signs and/or symptoms for less than 1 year) respond to treatment with efgartigimod PH20 SC. The study consists of a treatment period of 51 weeks. The study duration for each participant will be approximately 58 weeks.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

New Onset Generalized Myasthenia Gravis (gMG)

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Efgartigimod PH20 SC

Participants receiving efgartigimod PH20 SC

Group Type EXPERIMENTAL

Efgartigimod PH20 SC

Intervention Type BIOLOGICAL

Subcutaneous injection of efgartigimod PH20 SC

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Efgartigimod PH20 SC

Subcutaneous injection of efgartigimod PH20 SC

Intervention Type BIOLOGICAL

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Is at least 18 years when signing the ICF
* Has been diagnosed with gMG of MGFA class II, III, or IV
* Is seropositive for AChR-Ab
* Is treatment-naive for gMG or has been administered AChEI for the treatment of gMG
* Had onset of generalized MG signs and/or symptoms within 12 months before screening; candidates who also had onset of ocular MG signs and/or symptoms within 24 months before screening may be enrolled in the study
* Has an MG-ADL score ≥5

Exclusion Criteria

* gMG diagnosis of MGFA class I or V
* Underwent a thymectomy prior to screening, except thymectomy for treatment of nonmalignant thymoma prior to the gMG diagnosis
* Prior or current use of any of any systemic corticosteroid therapy or nonsteroidal immunosuppressive therapy for the treatment of gMG
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

argenx

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

University of California, San Diego - Altman Clinical and Translational Research Institute (ACTRI)

La Jolla, California, United States

Site Status RECRUITING

Samir Macwan, M.D., Inc. (S corporation)

Rancho Mirage, California, United States

Site Status RECRUITING

EZR Research

Boca Raton, Florida, United States

Site Status RECRUITING

University of Florida Jacksonville

Jacksonville, Florida, United States

Site Status RECRUITING

University of California Irvine

Orange, Florida, United States

Site Status RECRUITING

Medsol Clinical Research Center Inc

Port Charlotte, Florida, United States

Site Status RECRUITING

Baycare Medical Group

St. Petersburg, Florida, United States

Site Status RECRUITING

Emory Brain Health Center

Atlanta, Georgia, United States

Site Status RECRUITING

The Queen's Medical Center - West Oahu

Honolulu, Hawaii, United States

Site Status RECRUITING

Hawaii Pacific Neuroscience

Honolulu, Hawaii, United States

Site Status RECRUITING

HSHS Medical Group

O'Fallon, Illinois, United States

Site Status RECRUITING

UMass Memorial Medical Center

Worcester, Massachusetts, United States

Site Status RECRUITING

Henry Ford Health System

Detroit, Michigan, United States

Site Status RECRUITING

Visionary Investigators Network

Princeton, New Jersey, United States

Site Status RECRUITING

Cleveland Clinic

Cleveland, Ohio, United States

Site Status RECRUITING

Erlanger Neuroscience Institute

Chattanooga, Tennessee, United States

Site Status RECRUITING

Central Texas Neurology Consultants - Elligo

Round Rock, Texas, United States

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Sabine Coppieters, MD

Role: CONTACT

857-350-4834

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Wali Qayoumi, MD

Role: primary

857-350-4834

Samir Macwan, MD

Role: primary

857-350-4834

Patricio Espinosa Prado, MD

Role: primary

857-350-4834

Michael Pulley, MD

Role: primary

857-350-4834

Ali Habib, MD

Role: primary

857-350-4834

George Li, MD

Role: primary

857-350-4834

Michael Rosario-Prieto, MD

Role: primary

857-350-4834

Vita Kesner, MD

Role: primary

857-350-4834

Jeffrey Miles, MD

Role: primary

857-350-4834

Natalia Gonzalez Caldito, MD

Role: primary

857-350-4834

Raghav Govindarajan, MD

Role: primary

857-350-4834

Shivkumar Bhadola, MD

Role: primary

857-350-4834

Kavita Grover, MD

Role: primary

857-350-4834

Andrew Lerman, MD

Role: primary

857-350-4834

Yuebing Li, MD

Role: primary

857-350-4834

Joshua Alpers, MD

Role: primary

857-350-4834

Adam Horvit, MD

Role: primary

857-350-4834

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

ARGX-113-2407

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.