Clinical Trials

Are You Living With Generalized Myasthenia Gravis (gMG)?

Emnergize

Investigational Study Drug

Empasiprubart

Study Status
Recruiting

Clinical Study Code

ARGX-999-2-MG-20002

About gMG


About this clinical research study


Phase

2a

Number of participants

Approx. 40

Start date

June

2026

Study sites

Approx. 40

This study, Adapt Forward 2 , is designed to evaluate how the investigational study drug, empasiprubart* may work (also known as efficacy) and how safe it is for the use in adults living with gMG. This study will evaluate the investigational study drug (empasiprubart)* compared to a placebo.

* The investigational study drug, empasipubart, is not approved by any regulatory agency for use in gMG as efficacy and safety have not been established.

Eligibility


You may be eligible to participate if you:

  • Are diagnosed with gMG (AchR-Ab positive)
  • Have not received efgartigimod or another FcRn antagonist within 4 weeks before the investigational study drug is administered

Additional criteria to participate apply which the study doctor will discuss.

What to expect


Screening -
Up to 5 weeks

Treatment –

Up to 12 weeks

Follow up –

Up to 28 weeks

The study consists of 3 phases in which you will undergo several tests and in which the investigational study drug will be administered.

Screening phase (up to 5 weeks): to perform tests to check eligibility to join this study.

Treatment phase: up to 12 weeks participation in the Double-blinded treatment phase. Participants are randomly assigned to a treatment group and will receive 4 doses of either empasiprubart (group 1) or placebo (group 2). There is 75% chance that you will be in group 1.

Follow up phase (up to 28 weeks)participants will receive 4 cycles of efgartigimod PH20 SC PFS**. The study team will continue to monitor you for safety. This will include physical check-ups, blood work and urine tests, and answering health-related questions.

**efgartigimod PH20 SC PFS is approved for use in generalized Myasthenia Gravis in adult patients who are acetylcholine receptor antibody (AChR-Ab) positive.

Study contact and resources


Emnergize