Idiopathic Inflammatory Myopathy: Efgartigimod Treatment

We are studying the long-term safety and effects of a new injection for adults with active idiopathic inflammatory myopathy. This research aims to see if it can help reduce steroid use and improve health outcomes.

>2 years 6-10 visits Confirmation phase (III)Post-Trial Drug Access No Placebo Cost Reimbursement Investigational Medicines Oral InjectionInternal MedicineRheumatology

What diseases are being studied?

Health conditions and diseases that the clinical trial is designed to study and treat.

Who can participate in the clinical trial?

These questions help us understand your situation so we can let the trial team know whether you might be a potential match. This is not a medical evaluation and is not part of the official screening, the study doctor will make the final decision..

What medicines are being studied?

Medicines that are officially approved for use in the European Union and considered safe by EMA. These medicines are already on the market and may be tested for new conditions or populations.

Hydrocortisone

Hydrocortisone is a steroid medicine used to reduce inflammation and treat skin rashes, eczema, allergic reactions, and some hormone problems.

Prednisolone Eg

Prednisolone Eg is a steroid medicine used to reduce swelling and treat allergies, asthma attacks, and certain immune system conditions.

Tacrolimus

Tacrolimus is a medicine that suppresses the immune system to help prevent organ transplant rejection and to treat severe eczema.

What active substances are being studied?

Active substances that are officially approved for use in the European Union and considered safe by EMA. These substances are already on the market and may be tested for new conditions or populations.

Azathioprine

Azathioprine is a substance that suppresses the immune system to prevent organ rejection and treat autoimmune diseases.

Betamethasone

Betamethasone is a corticosteroid substance that reduces inflammation and suppresses immune responses for conditions like eczema, allergies, and arthritis.

Ciclosporin

Ciclosporin is a substance that suppresses the immune system to prevent organ transplant rejection and treat autoimmune conditions.

What experimental substances are being tested?

Experimental substances that are being investigated in this clinical trial. These are not yet approved for general use.

Argx-113

What similar medicines might you know?

Don't worry if you don't know the medicines tested in the trial. There is a chance you have heard about the similar medicines. Check the list below to see if you are familiar with any of them.

Abix

Acecort

Actocortina

Where is the clinical trial being conducted?

Locations and medical facilities where this clinical trial is currently recruiting or conducting research. Select the locations where you would like to participate.

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Medizinische Universitaet Innsbruck

Department of Neurology

Innsbruck, Austria

Allgemeines Krankenhaus Der Stadt Wien Universitatskliniken

Allgemeines Krankenhaus der Stadt Wien (AKH), Divison of Rheumatology, Medicine III

Vienna, Austria

ISPPC CHU Charleroi

Neurology department – C.H.U. de Charleroi Site Hôpital Civil Marie Curie (HCMC)

Charleroi, Belgium

Sponsor: Argenx

Last updated: Nov 27, 2025

Disclaimer: Parts of this content have been automatically extracted from the EU Clinical Trials registry. While we strive for accuracy, please always contact the trial site or sponsor directly for correct and official information before making any decisions about participation. View on EU Clinical Trials.