Twin study seeks clues to rheumatic disease mysteries

NCT ID NCT00055055

First seen Jun 24, 2026 · Last updated Jul 01, 2026 · Updated 3 times

Summary

This study looks at families where one sibling has a rheumatic disease (like rheumatoid arthritis or lupus) and the other does not. Researchers compare their blood, genes, and environmental exposures to find clues about why one got sick. Over 1,000 participants are involved, including siblings, parents, and healthy volunteers. The goal is to understand what causes these diseases, not to test a new treatment.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to

If successful, this study could help identify genetic or environmental factors that trigger rheumatic diseases, pointing toward future prevention or treatment strategies.

What could go wrong

This is an observational study, not a treatment trial. It may not find clear differences, and results may not directly lead to new therapies.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

acquired idiopathic inflammatory myopathy myositis disease rheumatoid arthritis systemic lupus erythematosus systemic sclerosis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • NIEHS Clinical Research Unit (CRU)

    Research Triangle Park, North Carolina, United States

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States

  • University of Wisconsin

    Madison, Wisconsin, 53792, United States