Coffee's hidden power: could your morning cup boost blood stem cells?

NCT ID NCT07193264

First seen Jun 27, 2026 · Last updated Jul 07, 2026 · Updated 2 times

Summary

This study looks at how caffeine, the stimulant in coffee and energy drinks, affects blood stem cells in healthy adults. Researchers will compare people who drink caffeine regularly with those who rarely do. All participants will take a single 200 mg caffeine tablet (about one cup of coffee) on an empty stomach, and blood samples will be taken before and three hours after to see if caffeine changes how stem cells move from bone marrow into the blood.

What this could mean

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

Active substance
caffeine (200 mg tablet)
What this could lead to
If successful, this could reveal how caffeine influences blood stem cell activity, potentially informing future therapies for blood disorders.
What could go wrong
This is a small, early-stage observational study in healthy adults, not a treatment trial. Results may not apply to people with illnesses or lead to direct medical benefits.

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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

  • ETH GLC

    NOT_YET_RECRUITING

    Zurich, Canton of Zurich, 8006, Switzerland

  • ETH GLC

    RECRUITING

    Zurich, Canton of Zurich, 8006, Switzerland

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

    Contact Email: •••••@•••••

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