Could a simple injection melt away painful calcium deposits?

NCT ID NCT06672822

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether injecting sodium thiosulfate directly into painful calcium deposits (calcinosis) can shrink them and ease symptoms. Twenty adults with scleroderma, dermatomyositis, or mixed connective tissue disease will receive ultrasound-guided injections. The main goal is to see if the lumps get smaller after 12 weeks.

What this could mean

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

Active substance

sodium thiosulfate

What this could lead to

If it works, this could offer a new way to reduce painful calcium lumps under the skin without major surgery.

What could go wrong

This is a very small early-stage trial with only 20 people, so results may not apply to everyone. The injections are directly into the lesion and could cause pain or infection.

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.

calcinosis dermatomyositis mixed connective tissue disease systemic sclerosis

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • UPMC Arthritis and Autoimmunity Center

    RECRUITING

    Pittsburgh, Pennsylvania, 15213, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact