Polymyositis Market Report 2025

The polymyositis market size has grown strongly in recent years. It will grow from $1.65 billion in 2024 to $1.75 billion in 2025 at a compound annual growth rate (CAGR) of 6.4%. The growth during the historic period can be attributed to increased access in developing regions, greater use of prednisone, the rising popularity of methotrexate for managing symptoms, a growing reliance on TNF inhibitors, and an increase in the use of antibody testing.

The polymyositis market size is expected to see strong growth in the next few years. It will grow to $2.23 billion in 2029 at a compound annual growth rate (CAGR) of 6.2%. The growth during the forecast period can be attributed to the expansion of telemedicine, increased use of remote monitoring, growing use of immunosuppressants, a rise in stem cell therapy, and increased adoption of biosimilars. Key trends during this period include the integration of artificial intelligence in drug discovery, advancements in targeted therapies, the development of novel immunomodulators, rising research in regenerative medicine, and the integration of big data.

The increasing prevalence of autoimmune diseases is expected to drive the growth of the polymyositis market. Autoimmune diseases occur when the body's immune system mistakenly attacks its own healthy cells, tissues, or organs, causing inflammation and damage. The prevalence of these conditions is rising due to certain genetic variants that can trigger an overactive immune response, making individuals more likely to attack their own tissues. This genetic predisposition, combined with environmental factors such as infections, stress, and lifestyle choices, contributes to the growing incidence of autoimmune diseases. Polymyositis contributes to the understanding of autoimmune diseases by demonstrating how immune system dysfunction causes muscle inflammation, providing insights into the mechanisms of related conditions and potential treatments. For example, in November 2024, Versorgungsatlas.de, a Germany-based organization, reported that in 2022, among 73,241,305 insured individuals, 6,304,340 were diagnosed with at least one autoimmune disease, reflecting a raw prevalence rate of 8.61%. As such, the increasing prevalence of autoimmune diseases is driving the polymyositis market.

The rising demand for oral drugs is expected to further accelerate the growth of the polymyositis market. Oral drugs are medications taken by mouth in the form of tablets, capsules, or liquids, which are absorbed through the digestive system. The growing preference for oral drugs is due to their convenience, ease of use, and non-invasive nature, making them a preferred option over injections or other forms of medication delivery. Polymyositis is often treated with oral drugs that help reduce muscle inflammation, regulate the immune system, and improve muscle function, which helps alleviate symptoms and prevent disease progression. For instance, in October 2022, the Centers for Disease Control and Prevention (CDC) reported a 57% increase in the dispensing of oral antivirals, from 643 per 100,000 persons between April 24 and May 21, 2022, to 1,012 per 100,000 persons between July 31 and August 28, 2022. This increase in demand for oral drugs is contributing to the growth of the polymyositis market.

Companies operating in the polymyositis market are focusing on innovative therapies such as stem cell therapy to improve treatment outcomes and slow disease progression. Stem cell therapy involves using umbilical cord-derived stem cells for regenerative treatments. These stem cells have strong immunomodulatory and anti-inflammatory properties, making them a promising option for treating autoimmune diseases such as polymyositis. For example, in December 2024, RESTEM, a U.S.-based clinical-stage biotechnology company, received Orphan Drug Designation (ODD) from the U.S. Food and Drug Administration (FDA) for its stem cell program, which uses umbilical cord outer lining stem cells (ULSCs) to treat polymyositis and Dermatomyositis. This therapy works by regulating the immune system and reducing muscle inflammation. Early trials have shown promising safety and efficacy, with the potential to reduce dependency on steroids.

Major players in the polymyositis market are Pfizer Inc., F. Hoffmann-La Roche AG, Bristol-Myers Squibb Company, AstraZeneca plc, Novartis AG, GlaxoSmithKline plc, Merck & Co. Inc., C.H. Boehringer Sohn AG & Co. KG, Regeneron Pharmaceuticals Inc., Astellas Pharma Inc., Fresenius SE & Co. KGaA, UCB S.A., Reliance Life Sciences Private Limited, ARUP Laboratories, Teva Pharmaceuticals USA Inc., Kezar Life Sciences Inc., Argenx SE, Mallinckrodt Pharmaceuticals plc, Mitsubishi Tanabe Pharma Corporation, ViiV Healthcare Limited.

North America was the largest region in the polymyositis market in 2024. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in polymyositis report are Asia-Pacific, Western Europe, Eastern Europe, North America, South America, Middle East and Africa. The countries covered in the polymyositis market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

Polymyositis is a chronic inflammatory myopathy that causes progressive muscle weakness, primarily affecting the skeletal muscles. It results from an autoimmune response in which the body’s immune system mistakenly attacks muscle fibers, leading to inflammation, degeneration, and weakness.

The main types of polymyositis include idiopathic polymyositis, dermatomyositis, inclusion body myositis, and overlapping myositis syndromes. Idiopathic polymyositis is a rare muscle disease characterized by weakness and inflammation, typically treated with corticosteroids. Diagnosis is made through various methods, including physical examination, muscle biopsy, electromyography (EMG), blood tests, and magnetic resonance imaging (MRI). Treatments for the condition include immunosuppressants, immunoglobulins, corticosteroids, alkylating agents, monoclonal antibodies, and other medications. These treatments are distributed through various channels, such as offline and online, and are utilized by different end users, including hospital pharmacies, online pharmacies, and retail pharmacies.

The polymyositis market research report is one of a series of new reports that provides polymyositis market statistics, including the polymyositis industry global market size, regional shares, competitors with the polymyositis market share, detailed polymyositis market segments, market trends, and opportunities, and any further data you may need to thrive in the polymyositis industry. This polymyositis market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenarios of the industry.

The polymyositis market consists of revenues earned by entities by providing services such as diagnosis and testing services, pharmacological treatment services, physical therapy and rehabilitation services, and occupational therapy services. The market value includes the value of related goods sold by the service provider or included within the service offering. The polymyositis market also includes sales of anti-inflammatory and pain management medications, biologic therapies, intravenous immunoglobulin (IVIG) therapy, and plasmapheresis (plasma exchange) products. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD, unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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