US FDA United States — FDA approvals (Drugs@FDA)
| Product | Strength | Form · route | Applicant | Status | First approved |
| IMAAVY | 300MG/1.62ML(185MG/ML); 1200MG/6.5ML(185MG/ML) | injectable · injection | JANSSEN BIOTECH | Prescription | 29 Apr 2025 |
EMA European Union — centrally authorised medicines
Imaavy Janssen Cilag International NV · Authorised · authorised 28 Nov 2025 · ATC L04AL03
Therapeutic indication (EMA)
Imaavy is indicated as an add-on to standard therapy for the treatment of generalised myasthenia gravis (gMG) in adult and adolescent patients aged 12 years of age and older who are anti‑acetylcholine receptor (AChR) or anti-muscle-specific tyrosine kinase (MuSK) antibody positive.
Canada Canada — marketed products (Health Canada)
| Brand | DIN | Strength | Form · route | Company |
| IMAAVY | 02563509 | 300 MG / 1.62 ML | SOLUTION · INTRAVENOUS | JANSSEN INC |
| IMAAVY | 02563517 | 1200 MG / 6.5 ML | SOLUTION · INTRAVENOUS | JANSSEN INC |
Values as published by each source: SFDA human drug list (4-2026, as published by the Council of Health Insurance; indications from the CHI Daman Drug Formulary), Drugs@FDA, EMA medicines data, Health Canada Drug Product Database (Open Government Licence – Canada), CMS NADAC, NHS Drug Tariff Part VIIIA (NHSBSA Copyright, Open Government Licence v3.0), WHO Model List of Essential Medicines (CC BY 3.0 IGO; regrouped by active substance, not created by WHO), EMA PRAC, US FDA safety-related labeling changes and MHRA Drug Safety Update (Open Government Licence v3.0). Sources and reuse. Not a substitute for the official registers or the product information.