JUUL vs. cigarettes: which delivers nicotine faster?
NCT ID NCT04053868
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at how nicotine enters the body when people use JUUL e-cigarettes compared to smoking regular tobacco cigarettes. Seventeen healthy adult smokers took part, and researchers measured nicotine levels and heart rate after each product. The goal was to understand the differences in nicotine delivery, not to test a treatment.
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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
Locations
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University of California, San Francisco
San Francisco, California, 94143, United States
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Zuckerberg San Francisco General Hospital
San Francisco, California, 94110, United States
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