Market Size
Generalized Myasthenia Gravis Treatment Market size reached US$ 3.78 billion in 2024 and is expected to reach US$ 15.57 billion by 2033, growing at a CAGR of 17.1% during the forecast period 2025-2033.
Generalized Myasthenia Gravis (gMG) is a chronic, autoimmune neuromuscular disorder characterized by weakness in the voluntary muscles of the body. It is the most common form of Myasthenia Gravis (MG), a disease that affects the communication between nerves and muscles, leading to muscle weakness. In generalized myasthenia gravis, the body’s immune system produces antibodies against the acetylcholine receptors (AChRs) located at the neuromuscular junction. These receptors are crucial for the transmission of nerve impulses to the muscles, which results in muscle contraction.
The treatment for generalized myasthenia gravis is highly individualized, typically involving a combination of pharmacological, surgical, and supportive therapies aimed at reducing symptoms, improving muscle strength, and managing the autoimmune response. The goal is to enhance the patient’s quality of life, prevent complications, and, in many cases, offer long-term disease control. With the advent of biological therapies and immunosuppressive drugs, the management of gMG has improved significantly, especially in severe cases.
Executive Summary
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Market Dynamics: Drivers & Restraints
Advancements in targeted therapies and biologics are significantly driving the generalized myasthenia gravis treatment market growth
Monoclonal Antibodies (mAbs) have significantly advanced the treatment landscape of gMG by specifically targeting the underlying immune mechanisms that cause muscle weakness. These biologic agents provide a more direct approach compared to traditional therapies, like corticosteroids or anticholinesterase medications. For instance, Eculizumab (Soliris) and Ravulizumab (Ultomiris) are monoclonal antibodies that are complement inhibitors that work by blocking the complement system, which plays a key role in the pathophysiology of gMG. By inhibiting complement activation, they help reduce inflammation and damage to the neuromuscular junction, resulting in improved muscle strength.
In addition to targeting acetylcholine receptor (AChR) antibodies, new biologics are being developed to address anti-MuSK (muscle-specific kinase) antibodies, which are present in a subset of gMG patients. These patients often don’t respond to traditional therapies, making targeted treatments crucial. Thus, the major and emerging market players are focusing on the launch of some biologics for the treatment of antibody-positive (anti-AChR, anti-MuSK, anti-LRP4) patients with generalized myasthenia gravis (gMG).
For instance, in January 2025, Johnson & Johnson announced that the nipocalimab Biologics License Application (BLA) received Priority Review designation from the U.S. Food and Drug Administration (FDA) for the treatment of antibody positive (anti-AChR, anti-MuSK, anti-LRP4) patients with generalized myasthenia gravis (gMG), as supported by findings from the Phase 3 Vivacity-MG3 study. The FDA grants Priority Review to applications for medicines that, if approved, would offer significant improvements in the safety or effectiveness of the treatment, diagnosis, or prevention of serious conditions when compared to standard applications.
Side effects and safety concerns associated with the treatment hampering market growth
Side effects and safety concerns are key factors that can hamper the growth of the generalized myasthenia gravis treatment Market, as patients and healthcare providers must carefully weigh the benefits and risks of available therapies. While advancements in targeted biologics and immunosuppressive treatments have improved outcomes for many patients, safety concerns and adverse effects remain significant barriers to treatment adoption.
Monoclonal antibodies like Eculizumab (Soliris), Ravulizumab (Ultomiris), and Efgartigimod (Vyvgart) have revolutionized gMG treatment by targeting the immune system more precisely. However, these biologics still carry safety concerns, including the risk of infections, particularly meningococcal infections, due to the inhibition of the complement system, which is part of the body’s defense against bacterial infections. Due to the increased risk of infections, patients using Eculizumab are required to receive vaccinations before starting treatment. The need for vaccination and close monitoring may make this therapy less attractive for some patients, especially those in resource-limited settings.
Immunosuppressive therapies, monoclonal antibodies, and biologics, while effective, come with long-term risks such as infections, organ toxicity, infusion reactions, and cancer risks. Plasma exchange carries hospitalization requirements and risks of complications. These concerns can lead to patient hesitancy, increased treatment costs, and limited accessibility. Addressing these safety concerns, improving patient monitoring, and developing treatments with fewer side effects will be essential to overcoming these barriers and further driving the growth of the gMG treatment market.
Pipeline Analysis
Top phase III and Phase II pipeline products for generalized myasthenia gravis:
Market Segment Analysis
The global generalized myasthenia gravis treatment market is segmented based on treatment type, route of administration, and region.
Treatment:
The monoclonal antibodies segment is expected to dominate the generalized myasthenia gravis treatment market with the highest market share
Monoclonal antibodies are specifically designed to target the immune dysfunction in gMG, particularly the autoantibodies (such as anti-AchR and anti-MuSK) that attack the neuromuscular junction. Eculizumab (Soliris) and Ravulizumab (Ultomiris) are complement inhibitors that help reduce inflammation at the neuromuscular junction by inhibiting the complement system, which is implicated in gMG’s pathophysiology. These drugs have been shown to significantly improve muscle strength and reduce disease progression.
Below are the approved monoclonal antibodies for gMG treatment:
| Generic Name | Brand Name | Approval Date |
| Eculizumab | Soliris | October 2017 |
| Efgartigimod | Vyvgart | December 2021 |
| Ravulizumab | Ultomiris | April 2022 |
| Rozanolixizumab-noli | Rystiggo | June 2023 |
The approval and commercialization of new monoclonal antibodies like Ravulizumab and Rozanolixizumab are expanding the market for targeted therapies. For instance, in June 2023, UCB, a global biopharmaceutical company, announced that RYSTIGGO (rozanolixizumab-noli) was approved by the U.S. Food and Drug Administration (FDA) for the treatment of generalized myasthenia gravis (gMG) in adult patients who are anti-acetylcholine receptor (AchR) or anti-muscle-specific tyrosine kinase (MuSK) antibody positive.
With drugs like Eculizumab, Ravulizumab, and Efgartigimod demonstrating significant improvements in patient outcomes, this segment is experiencing rapid growth and is expected to capture a larger share of the market in the coming years. Their ability to precisely target the autoimmune mechanisms in gMG, along with positive clinical trial results and regulatory approvals, positions monoclonal antibodies as the cornerstone of gMG treatment, making them the preferred therapeutic option for many patients worldwide.
Market Geographical Share
North America is expected to hold a significant position in the global generalized myasthenia gravis treatment market with the highest market share
North America has one of the most advanced and well-developed healthcare systems globally, which enables patients to access cutting-edge treatments for generalized myasthenia gravis (gMG). The U.S. and Canada have access to the latest therapies, including monoclonal antibodies and biologic treatments, that are crucial for managing gMG. The U.S. FDA approved RYSTIGGO for gMG treatment in 2023, marking a significant advancement in biologic treatments for gMG. This approval and the rapid market adoption in North America demonstrate the region's quick access to innovative therapies.
North America, especially the United States and Canada, is home to major and emerging market players, which further boost the market growth with novel product launches and pipeline products. For instance, in October 2024, Amgen announced the positive top-line results from the Phase 3 MINT trial evaluating the efficacy and safety of UPLIZNA (inebilizumab-cdon) for the treatment of adults with generalized myasthenia gravis (gMG).
Top Companies
Top companies in the generalized myasthenia gravis treatment market include Alexion Pharmaceuticals, Inc., Argenx, and UCB S.A. The emerging companies include Amgen Inc., Kyverna Therapeutics, Novartis AG, RemeGen Co., Ltd., Cartesian Therapeutics, Dianthus Therapeutics, Immunovant Sciences GmbH, Momenta Pharmaceuticals, Inc., Merck KGaA, Regeneron Pharmaceuticals, Ra Pharmaceuticals, Inc., Catalyst Pharmaceuticals, Inc., Takeda, Janssen Research & Development, LLC, Cabaletta Bio, COUR Pharmaceutical Development Company, Inc., Juno Therapeutics, Inc., Arcellx, Inc., and among others.
Scope
| Metrics | Details | |
| CAGR | 17.1% | |
| Market Size Available for Years | 2022-2033 | |
| Estimation Forecast Period | 2025-2033 | |
| Revenue Units | Value (US$ Bn) | |
| Segments Covered | Treatment Type | Monoclonal Antibodies, Cholinesterase Inhibitors, Corticosteroids, Immunosuppressants, Plasma Exchange (Plasmapheresis), Intravenous Immunoglobulin (IVIg), and Others |
| Route of Administration | Oral, Intravenous, Subcutaneous, and Others | |
| Regions Covered | North America, Europe, Asia-Pacific, South America, and the Middle East & Africa | |
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- Pipeline & Innovations: Reviews ongoing clinical trials, product pipelines, and forecasts upcoming advancements in medical devices and pharmaceuticals.
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- Real-World Evidence: Integrates patient feedback and data into product development for improved outcomes.
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- Sustainability & Regulatory Impact: Focuses on eco-friendly practices and evolving regulations in healthcare.
- Post-market Surveillance: Uses post-market data to enhance product safety and access.
- Pharmacoeconomics & Value-Based Pricing: Analyzes the shift to value-based pricing and data-driven decision-making in R&D.
The global generalized myasthenia gravis treatment market report delivers a detailed analysis with 33 key tables, more than 40 visually impactful figures and 198 pages of expert insights, providing a complete view of the market landscape.
Target Audience 2024
- Manufacturers: Pharmaceutical, Medical Device, Biotech Companies, Contract Manufacturers, Distributors, Hospitals.
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