This observational study is looking into environmental factors that might contribute to myositis, specifically a type called anti-synthetase syndrome. Researchers believe that autoimmune diseases like myositis, which causes muscle weakness, can develop when the body reacts to certain environmental factors. This study aims to find out if specific non-infectious environmental exposures are more common in people who have recently developed anti-synthetase syndrome compared to people without autoimmune diseases. They are also comparing these exposures to people with other recent-onset myositis. The study plans to enroll 580 participants between 2 and 100 years old. To join, you must have a diagnosis of myositis (polymyositis, dermatomyositis, or juvenile forms) confirmed within the last 24 months. The study's success will be measured by whether these environmental exposures are found to be more frequent in the anti-synthetase syndrome group. The current status of this study is unclear.

Study design

This is an observational study, meaning researchers will be looking at information about people without giving them any specific treatments. It aims to enroll 580 participants.

What's involved

Not specified in the trial record.

Compensation

Not stated in the trial record.

Follow-up

The primary endpoint is measured at enrollment, focusing on exposures prior to disease.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.