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A Method to Amend Cigarettes With Menthol for Use in Research
Kia J Jackson1, Megan J Schroeder1, Jiu Ai1
1Food and Drug Administration, Center for Tobacco Products, Office of Science, 11785 Beltsville Drive, Calverton, MD 20705, USA.
Summary
Researchers developed a method to create menthol cigarettes with varying menthol levels. This technique reliably delivers dose-related menthol, aiding addiction research.
Area of Science:
- Tobacco Research
- Addiction Science
- Pharmacology
Background:
- Limited understanding of how varying menthol content in cigarettes affects addiction-related outcomes.
- Previous studies focused on menthol's general role, not specific concentration effects.
Purpose of the Study:
- To develop and validate a method for modifying non-menthol cigarettes to contain precise, varying levels of menthol.
- To enable research into the independent effects of menthol concentration on smoking behavior and nicotine pharmacokinetics.
Main Methods:
- Modified SPECTRUM Research Cigarettes (NRC 600) by injecting menthol solutions into the filter and tobacco rod.
- Quantified menthol content over 72 hours using gas chromatography with flame ionization detection.
- Confirmed dose-related menthol delivery in participants via urinary menthol glucuronide analysis.
Main Results:
- Achieved reliable menthol distribution in cigarettes for up to 72 hours.
- Observed a decrease in total menthol content from 90.3% at 1 hour to 80.7% at 72 hours.
- Demonstrated dose-related menthol levels delivered to participants using amended cigarettes within 24 hours.
Conclusions:
- A reliable method exists to modify cigarettes with a range of menthol levels for research.
- This technique facilitates the study of varying menthol concentrations' independent effects on smoking outcomes.
