Could a common arthritis drug help people with down syndrome think and learn better?

NCT ID NCT07598643

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tests whether tofacitinib, a drug used for arthritis, can improve thinking skills and immune function in people with Down syndrome aged 6 to 22. Half of the 92 participants will receive the drug for 6 months, and the other half a placebo. Researchers will measure changes in intelligence, attention, and daily living skills, while closely watching for side effects.

What this could mean

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

Active substance

Tofacitinib (XELJANZ), a JAK inhibitor drug

What this could lead to

If successful, this could point toward a treatment that improves thinking, learning, and overall health in people with Down syndrome.

What could go wrong

This is an early phase 2 trial with only 92 participants, so results may not apply to everyone. The drug also carries risks like infection and requires careful monitoring.

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.

Down syndrome

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: •••••@•••••

  • Contact

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

Locations

  • CU Anschutz, Children's Hospital Colorado

    RECRUITING

    Aurora, Colorado, 80045, United States

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

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

    Contact

    Contact