Common diabetes drug may limit your workout — study tests the theory

NCT ID NCT06638671

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether short-term use of metformin, a common diabetes drug, changes how well healthy young adults can exercise. Fourteen participants took metformin or a placebo and did bike tests to measure endurance and blood lactate levels. The goal was to see if metformin reduces exercise capacity, as some earlier research suggested.

What this could mean

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

Active substance
metformin
What this could lead to
If it works, this could help doctors understand how metformin affects exercise performance, which may guide advice for people taking the drug.
What could go wrong
This is a small, early-phase study with only 14 healthy young adults, so results may not apply to older or less active people. The findings are about exercise capacity, not disease treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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As listed by the trial registrant

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

Contacts and locations

Locations

  • University of Virginia

    Charlottesville, Virginia, 22903, United States

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