Overview
- Objective
To collect information and biospecimens (such as blood, muscle, and skin samples) that will be used to research causes and treatments of inflammatory muscle diseases.
- Eligibility
People aged 12 years and older with suspected or confirmed inflammatory muscle disease. Healthy volunteers aged 18 years and older are also needed.
- Design
Participants will have at least 1 clinic visit. Each visit will last 4 to 8 hours. Some may return for additional visits.
All participants will undergo these procedures (unless they are unable to):
- Physical exam, including blood and urine tests.
- Magnetic resonance imaging (MRI) scan of the thigh. Participants will lie still on a table with padding around 1 thigh. The table will slide into a tube. The scan will last for approximately 40 minutes.
Some procedures are optional:
- Muscle biopsy. An area of skin will be numbed. A quarter-inch cut will be made. Several pieces of muscle tissue, about the size of grains of rice, will be removed.
- Skin biopsy. An area of skin will be numbed. A piece of skin about a quarter inch in diameter will be removed.
- Genetic testing. Some of the samples collected may be used for genetic testing.
Description
Study Description:
This is an observational study to characterize the different types of inflammatory myopathies, understand their etiology, pathogenesis, prognosis, and response to different treatments.
- Objectives
Primary objective: Define the different types of inflammatory muscle diseases, their etiology, pathogenesis, prognostic factors, and response to different treatments.
Secondary objectives: Study different diagnostic modalities that may help to diagnose and monitor the evolution of the disease in patients with myositis.
- Endpoints
Primary endpoint: Severity of muscle, skin, pulmonary, and joint involvement. Study of the immune dysregulation, transcriptomic changes, and genetic modifications in patients with inflammatory muscle diseases.
Secondary endpoints: Utility of standard of care laboratory, radiologic, electrophysiologic, and clinical studies to diagnose and monitor the evolution of the disease in patients with myositis.
Eligibility
- INCLUSION CRITERIA:
In order to be eligible to participate in this study, an individual must meet all of the
following criteria:
1. Ability of subject, or Legally Authorized Representative (LAR) to understand and the
willingness to sign a written informed consent and/or assent document.
2a. Patients are adults and minors of age 12 or older, with possible inflammatory myopathy
(suspected or confirmed)
OR
2b. Healthy volunteers will be adults aged 18 or older.
EXCLUSION CRITERIA:
1. Unwilling to participate in research studies or to provide research samples or data.