Do fruit-flavored e-cigarettes help long-term smokers switch from regular cigarettes?

The role of flavor in the substitutability of e-cigarettes for combustible cigarettes among persistent smokers

NIH-funded research University of Pennsylvania · NIH-11258847

This will see if fruit-flavored e-cigarettes help adult smokers who can't quit switch away from regular cigarettes.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Pennsylvania NIH-funded
Lab location1 site (Philadelphia, United States)
Project IDNIH-11258847 on NIH RePORTER

What this research studies

You would be asked to try e-cigarettes with different flavor types (fruit versus tobacco/menthol) and report how satisfying they are. The team will follow adult smokers over time to see who switches from combustible cigarettes to e-cigarettes and who keeps using both. Researchers will combine self-reports with lab measures, like breath or blood tests, to track exposure to nicotine and harmful chemicals. The work mixes lab, population, and clinical methods to understand initial and sustained switching.

Who could benefit from this research

Good fit: Adults aged 21 or older who are current persistent cigarette smokers and are willing to try e-cigarettes would be ideal candidates.

Not a fit: Non-smokers, people under 21, pregnant people, and smokers seeking complete nicotine-free quitting are unlikely to benefit from this work.

Why it matters

Potential benefit: If successful, the results could help smokers who cannot quit move to less harmful, non-combustible nicotine products and reduce exposure to toxic chemicals.

How similar studies have performed: Laboratory and survey studies suggest fruit flavors may make e-cigarettes more appealing to some smokers, but there are no prospective clinical trials directly testing this substitution question.

Where this research is happening

Philadelphia, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.