Smoking and morning hours: a surprising effect on your blood cells?

NCT ID NCT07625111

Recruiting now Knowledge-focused Sponsor: Marek Lommatzsch Source: ClinicalTrials.gov ↗

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

Summary

This study looks at how smoking cigarettes and the time of day change a type of white blood cell called eosinophils. Researchers will compare chronic smokers (who smoke at least 8 cigarettes daily) with non-smokers, all healthy adults aged 18-50. Smokers will have blood tests on two separate days—one with no morning smoking and one after smoking 8 cigarettes—to see how these factors affect eosinophil levels and surface markers.

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Conditions

The condition(s) this trial relates to.

Smoking

As listed by the trial registrant

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

HEALTHY

Contacts and locations

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Study contacts

Contact

Phone: •••-•••-••••
Contact

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

Locations

University of Rostock
RECRUITING

Rostock, 18057, Germany

Contact Phone: •••-•••-••••

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