Polymyositis
MONDO:0019127A rare idiopathic inflammatory myopathy characterized by symmetric proximal muscle weakness and elevated muscle enzymes.
Also known as: PM, polymyositis
95 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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Can a targeted immune drug calm rare muscle inflammation?
Disease control CompletedThis trial tests whether efgartigimod, an injected drug that blocks certain immune antibodies, can improve muscle strength and function in adults with active idiopathic inflammatory myopathy — a group of rare autoimmune diseases that cause muscle inflammation and weakness. About …
Phase: PHASE2, PHASE3 • Sponsor: argenx • Aim: Disease control
Last updated Jul 26, 2026 00:00 UTC
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New drug shows promise for rare muscle disease
Disease control CompletedThis study tested an experimental drug called daxdilimab in 12 adults with dermatomyositis or anti-synthetase myositis that wasn't well controlled by standard treatments. The goal was to see if the drug could reduce disease activity and skin symptoms, and help lower steroid use o…
Phase: PHASE2 • Sponsor: Amgen • Aim: Disease control
Last updated Jun 27, 2026 12:38 UTC
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New pill could ease rare muscle disease
Disease control CompletedThis study tested an oral drug called GLPG3667 (Cadefrecitinib) in 40 adults with dermatomyositis, a rare disease causing muscle weakness and skin rash. Participants took the drug or a placebo daily for 24 weeks to see if it improves symptoms. The trial is complete, and results w…
Phase: PHASE2 • Sponsor: Lakefront Biotherapeutics NV • Aim: Disease control
Last updated Jun 27, 2026 12:33 UTC
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New drug combo shows promise for rare childhood muscle disease
Disease control CompletedThis study tested the drug baricitinib, given with steroids, in 16 children aged 3-18 with newly diagnosed juvenile dermatomyositis, a rare disease causing muscle weakness and skin rashes. The goal was to see if baricitinib works better than the standard treatment (methotrexate p…
Phase: PHASE2 • Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Disease control
Last updated Jun 27, 2026 12:23 UTC
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Experimental drug shows promise for rare muscle diseases
Disease control CompletedThis study tested the long-term safety and effectiveness of a drug called KZR-616 in 18 adults with active polymyositis or dermatomyositis, rare diseases that cause muscle inflammation and weakness. Participants who completed an earlier study received weekly injections of KZR-616…
Phase: PHASE2 • Sponsor: Kezar Life Sciences, Inc. • Aim: Disease control
Last updated Jun 27, 2026 07:58 UTC
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Experimental drug KZR-616 tested for rare muscle disorders
Disease control CompletedThis Phase 2 trial tested a drug called KZR-616 (zetomipzomib) in 25 adults with active polymyositis or dermatomyositis, two rare diseases that cause muscle inflammation and weakness. Participants received either the drug or a placebo for 16 weeks, then switched to the other trea…
Phase: PHASE2 • Sponsor: Kezar Life Sciences, Inc. • Aim: Disease control
Last updated Jun 27, 2026 07:57 UTC
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MRI may replace needle biopsy for muscle disease diagnosis
Diagnosis CompletedThis study looked at whether whole body MRI can accurately diagnose inflammatory myopathies—a group of muscle diseases causing weakness and damage. Researchers compared MRI results with muscle biopsies in 139 people suspected of having these conditions. If MRI proves reliable, it…
Phase: NA • Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Diagnosis
Last updated Jun 27, 2026 12:02 UTC
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Two-Minute sweat test could spot hidden nerve damage
Diagnosis CompletedThis study tested a device called SUDOSCAN, which measures sweat function in just two minutes, to see if it can detect small fiber nerve damage in people with autoimmune diseases (like lupus or rheumatoid arthritis) or unexplained pain. Researchers enrolled 139 adults and compare…
Phase: NA • Sponsor: Hôpital Européen Marseille • Aim: Diagnosis
Last updated Jun 27, 2026 07:51 UTC
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Supplements and exercise show promise for kids with muscle disease
Symptom relief CompletedThis study looked at whether taking creatine and coenzyme Q10 supplements, along with exercise, could help children with juvenile myositis (a disease that causes muscle weakness and fatigue). Fifteen children aged 7 to 18 took part. The goal was to see if these supplements could …
Phase: NA • Sponsor: The Hospital for Sick Children • Aim: Symptom relief
Last updated Jun 27, 2026 12:24 UTC
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Which exercise focus works best for kids with rheumatic conditions?
Symptom relief CompletedThis study tested two different exercise programs in 28 children and teens with rheumatic diseases like juvenile arthritis and familial Mediterranean fever. One program used external focus (thinking about the movement's effect), the other used internal focus (thinking about the b…
Phase: NA • Sponsor: Istanbul University - Cerrahpasa • Aim: Symptom relief
Last updated Jun 27, 2026 12:01 UTC
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Personalized rehab shows promise for rare muscle diseases
Symptom relief CompletedThis study tested whether a personalized exercise program can improve daily function and quality of life for people with dermatomyositis or polymyositis, two rare diseases that cause muscle weakness and inflammation. 80 adults with stable muscle impairment took part. The program …
Phase: PHASE2 • Sponsor: University Hospital, Lille • Aim: Symptom relief
Last updated Jun 27, 2026 08:06 UTC
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Military myositis mystery: could exposures be the trigger?
Knowledge-focused CompletedThis study investigated whether environmental exposures during military service increase the risk of developing myositis, a rare autoimmune disease that attacks muscles. Researchers compared 37 military personnel with and without myositis using questionnaires and blood samples. N…
Sponsor: National Institute of Environmental Health Sciences (NIEHS) • Aim: Knowledge-focused
Last updated Aug 18, 2026 03:00 UTC
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NIH launches major study to unlock secrets of rare inflammatory diseases
Knowledge-focused CompletedThis study follows up to 5,000 people with autoinflammatory diseases (like NOMID, CANDLE, and juvenile dermatomyositis) and their healthy relatives. Researchers will collect medical history, blood samples, and imaging over 2-5 day visits to learn how these diseases work and find …
Sponsor: National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) • Aim: Knowledge-focused
Last updated Aug 16, 2026 00:00 UTC
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Scientists hunt for genetic and environmental triggers of rare muscle diseases
Knowledge-focused CompletedThis study looked at 719 people, including patients with autoimmune connective tissue diseases like myositis, their blood relatives, and healthy volunteers. Researchers collected blood samples and medical histories to find genetic and environmental factors that may trigger these …
Sponsor: National Institute of Environmental Health Sciences (NIEHS) • Aim: Knowledge-focused
Last updated Aug 09, 2026 00:00 UTC
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Tiny study hopes to simplify muscle testing for rare muscle disease
Knowledge-focused CompletedThis study looked at a new way to measure muscle function in people with inflammatory myopathies (diseases that cause muscle weakness). Researchers compared a simple test called the Myositis Functional Index-3 with advanced computerised muscle testing. They also tested whether a …
Phase: NA • Sponsor: Federal University of Espirito Santo • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:00 UTC
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Coaching eases tough move to adult rheumatology care
Knowledge-focused CompletedThis study tested whether coaching sessions are practical for young people with rheumatic diseases moving from pediatric to adult care. 26 participants received up to 8 coaching sessions covering self-advocacy, medication management, and future planning. The main goal was to see …
Phase: NA • Sponsor: McMaster University • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:04 UTC