- Conditions
- Active Idiopathic Inflammatory Myopathy, Myositis, Dermatomyositis, Polymyositis, Immune-Mediated Necrotizing Myopathy, Antisynthetase Syndrome
- Interventions
- EFG PH20 SC, PBO
- Biological · Other
- Lead sponsor
- argenx
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 265 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2027
- U.S. locations
- 40
- States / cities
- Phoenix, Arizona • Scottsdale, Arizona • Beverly Hills, California + 35 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2025 · Synced May 21, 2026, 11:24 PM EDT