Botox shots in the thumb could ease arthritis pain

NCT ID NCT06902805

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tests whether injecting Botox into the thumb joint can reduce pain and improve hand function in people with base-of-thumb osteoarthritis. 120 adults with moderate to severe thumb pain will receive either two Botox injections, one Botox and one placebo, or two placebo injections. The main goal is to see if Botox provides better pain relief at 6 months compared to placebo.

What this could mean

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

Active substance
onabotulinumtoxinA (Botox)
What this could lead to
If it works, this could offer a new, non-surgical option to reduce thumb pain and improve hand function for several months.
What could go wrong
This is a mid-stage trial with only 120 participants, so results may not apply to everyone. Botox injections can cause temporary muscle weakness or bruising.

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Conditions

The condition(s) this trial relates to.

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

  • Assistance Publique - Hôpitaux de Paris, Service de Rééducation et de Réadaptation de l'Appareil Locomoteur et des Pathologies du Rachis du Pr François Rannou, Hôpital Cochin

    RECRUITING

    Paris, Île-de-France Region, 75014, France

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

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