Understanding how PF-06823859 works in patients with muscle inflammation disorders
Official title: A PHASE 3, MULTICENTER, DOUBLE-BLIND, RANDOMIZED, PLACEBO-CONTROLLED STUDY TO EVALUATE THE EFFICACY AND SAFETY OF PF-06823859 IN PARTICIPANTS WITH ACTIVE IDIOPATHIC INFLAMMATORY MYOPATHIES (INCLUDING PARTICIPANTS WITH ACTIVE DERMATOMYOSITIS OR POLYMYOSITIS)
Run by Pfizer · NCT05895786 · Data updated 2026-11-12
This study is testing a new medication called PF-06823859 to see if it can help adults with muscle inflammation disorders like dermatomyositis and polymyositis feel better compared to a placebo.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 318 (estimated) |
| Sponsor | Pfizer Industry-sponsored |
| Locations | 138 sites (Glendale, Arizona and 137 other locations) |
| Status | Recruiting |
| Started | May 20, 2023 |
| Main results expected | July 29, 2030 |
| Study ends | July 29, 2030 |
| Registry record updated | September 15, 2026 |
| Trial ID | NCT05895786 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are adults aged 18 and older with active dermatomyositis or polymyositis who are on stable doses of corticosteroids or immunosuppressants.
✕Probably not a fit
Patients with myositis due to non-idiopathic causes, inclusion body myositis, or those with significant comorbidities may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial aims to investigate the effects of the medication PF-06823859 in individuals diagnosed with active idiopathic inflammatory myopathies, specifically dermatomyositis and polymyositis. Participants must be adults aged 18 or older and currently receiving stable doses of corticosteroids or traditional immunosuppressants. The study will compare the effects of PF-06823859 against a placebo to assess its efficacy in reducing muscle inflammation and associated symptoms. The trial seeks to provide insights into the medication's mechanism of action and its potential benefits for patients suffering from these conditions.
Why it matters
Potential benefit: If successful, this study could lead to improved treatment options for patients with muscle inflammation disorders, enhancing their quality of life.
How similar studies have gone: Other studies have explored treatments for idiopathic inflammatory myopathies, but the specific approach of PF-06823859 is novel and has not been extensively tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Male or female adults (≥18 years old or minimum legal adult age as defined per local regulation, whichever is greater) * Active dermatomyositis (DM) or polymyositis (PM) with age of onset * 18 years old. * Must be receiving a stable dose of standard of care (SOC) background medications at the time of enrollment. Exclusion Criteria: * Myositis due to non-Idiopathic inflammatory myopathies (non-IIM) * Existing diagnosis of inclusion body myositis (IBM) * Presence of immune-mediated necrotizing myositis (IMNM) * Myositis with end-stage organ involvement * Active bacterial, viral or fungal infections or hospitalizations for serious infections within 60 days prior to enrollment * History of recurrent bacterial, viral, fungal, mycobacterial or other infections * Clinically significant finding on a chest x-ray * Have cancer or a history of cancer within 5 years of screening * Significant current or prior disease conditions that may interfere with the response to or safety of the study medicine, including but not limited to: * history of major organ transplant * acute coronary syndrome or any history of significant cerebrovascular disease within 24 weeks of screening * preexisting demyelinating disorder such as multiple sclerosis, or other severe neurological disorder * major surgery within 4 weeks of screening, or scheduled to occur during the study, excluding diagnostic surgery * previous treatment with total lymphoid irradiation * history of any lymphoproliferative disorder such as Epstein Barr Virus, history of lymphoma, leukemia, or symptoms of current lymphatic or lymphoid disease * Clinically significant depression, suicidal ideation, or previous history of suicidal behaviors * Other medical or laboratory abnormality that may increase the risk of study participation * Previous administration with an investigational product (drug or vaccine) within 30 days or of the first dose of study medicine * Current use or incomplete appropriate washout period of any prohibited medication(s) or known exposure to anti-interferon beta (PF-06823859) or any type of anti-interferon beta therapy * Prior SOC medication that does not fulfill the criteria * Certain laboratory results from screening assessments that may interfere with study participation. * Investigator site staff directly involved in the conduct of the study and their family members, site staff and sponsor and sponsor delegate employees directly involved in the conduct of the study and their family members
Where it's running
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Arizona Arthritis & Rheumatology Research, PLLC
Glendale, Arizona, United States Recruiting -
Neuromuscular Research Center
Phoenix, Arizona, United States Recruiting -
Mayo Clinic Hospital
Phoenix, Arizona, United States Recruiting -
Mayo Clinic in Arizona - Scottsdale
Scottsdale, Arizona, United States Recruiting -
200 UCLA Medical Plaza
Los Angeles, California, United States Recruiting -
UCLA Clinical & Translational Research Center (CTRC)
Los Angeles, California, United States Recruiting
Show 44 more locations
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UCLA
Los Angeles, California, United States Recruiting -
Samir Macwan, M.D., Inc.
Rancho Mirage, California, United States Recruiting -
Mayo Clinic in Florida
Jacksonville, Florida, United States Recruiting -
University of Miami
Miami, Florida, United States Recruiting -
University of Miami Dermatology Clinical Trials Unit
Miami, Florida, United States Recruiting -
University of Miami
Miami, Florida, United States Recruiting -
Unviversity of Miami
Miami, Florida, United States Recruiting -
IRIS Research and Development, LLC
Plantation, Florida, United States Recruiting -
West Broward Pulmonary Consultants
Plantation, Florida, United States Recruiting -
Brigham and Women's Hospital
Boston, Massachusetts, United States Recruiting -
CTC - Brigham & Women's Hospital
Boston, Massachusetts, United States Recruiting -
CTH - Brigham & Women's Hospital
Boston, Massachusetts, United States Recruiting -
NYU Langone Health - Clinical and Translational Science Institute Research Pharmacy
New York, New York, United States Recruiting -
NYU Langone Health Clinical Research Center
New York, New York, United States Recruiting -
NYU Langone Health
New York, New York, United States Recruiting -
NYU Langone Radiology
New York, New York, United States Recruiting -
Cleveland Clinic
Cleveland, Ohio, United States Recruiting -
RAO Research LLC
Oklahoma City, Oklahoma, United States Recruiting -
UPMC Arthritis and Autoimmunity Center, Falk Clinic
Pittsburgh, Pennsylvania, United States Recruiting -
UPMC Montefiore Clinical and Translational Research Center (CTRC)
Pittsburgh, Pennsylvania, United States Recruiting -
UPMC Presbyterian Shadyside Hospital
Pittsburgh, Pennsylvania, United States Recruiting -
Integrative Rheumatology of South Texas
Edinburg, Texas, United States Recruiting -
Arthritis & Rheumatology Research Institute, PLLC
Frisco, Texas, United States Recruiting -
Integrative Rheumatology of South Texas
Harlingen, Texas, United States Recruiting -
Nerve & Muscle Center of Texas
Houston, Texas, United States Recruiting -
Biopharma Informatic, LLC
Katy, Texas, United States Recruiting -
Pulmonary and Sleep Center of the Valley
Weslaco, Texas, United States Recruiting -
CER medical Institute
Quilmes, Buenos Aires F.D., Argentina Recruiting -
Alto Dorrego
Villa Nueva, Mendoza Province, Argentina Recruiting -
Centro de Investigaciones Médicas Tucuman
SAN M. de Tucuman, Tucumán Province, Argentina Recruiting -
Instituto de Reumatología Medical Center S.A.
Mendoza, Argentina Recruiting -
Diagnostic Consultative Center - Fokus-5 - Medical Establishment for Outpatient Care OOD
Sofia, Sofia (stolitsa), Bulgaria Recruiting -
Medical Center Artmed
Plovdiv, Bulgaria Recruiting -
Anhui Provincial Hospital
Hefei, Anhui, China Recruiting -
China-Japan Friendship Hospital
Beijing, Beijing Municipality, China Recruiting -
Peking Union Medical College Hospital
Beijing, Beijing Municipality, China Recruiting -
Dongguan People's Hospital
Dongguan, Guangdong, China Recruiting -
Guangdong Provincial People's Hospital
Guangzhou, Guangdong, China Recruiting -
Xiangya Hospital Central South University
Changsha, Hunan, China Recruiting -
Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School
Nanjing, Jiangsu, China Recruiting -
The Second Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, China Recruiting -
The Second Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, China Recruiting -
Shanghai Jiaotong University School of Medicine, Renji Hospital
Shanghai, Shanghai Municipality, China Recruiting -
Ruijin Hospital Shanghai Jiaotong University School of Medicine
Shanghai, Shanghai Municipality, China Recruiting
+88 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: Pfizer CT.gov Call Center
- Email: ClinicalTrials.gov_Inquiries@pfizer.com
- Phone: 1-800-718-1021
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Imaging markers for bulbar involvement in inclusion body myositis among IBM and comparison groups
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-
CR-402 treatment for refractory autoimmune disease
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-
Treatment Response in Myositis-Associated RP-ILD in Adults
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Measuring muscle health with a handheld electrical impedance device (mScan)
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.