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Ethnic Differences in Response to Topical Capsaicin: A Psychophysical Study on Healthy Subjects
The purpose of this research is to study how people respond differently to capsaicin in different racial groups and the effect it has on your pain levels. Capsaicin is a natural product made from hot chili peppers that is useful for treating the itch symptoms of skin disease.
Details
| Lead sponsor | Wake Forest University |
|---|---|
| Phase | Phase 4 |
| Status | COMPLETED |
| Enrolment | 40 |
| Start date | 2008-02 |
| Completion | 2009-10 |
Conditions
- Healthy
Interventions
- Capsaicin
- Placebo moisturizing cream
Primary outcomes
- Ethnic Differences in Burning Pain Induced by Topical Capsaicin — 1 day
The primary endpoint is to test the burning pain effect of topical capsaicin by using an continuous visual analog scale (CoVAS) intensity scale as an outcome measure. Participants will rate burning pain intensity after topical capsaicin application. The burning or pain sensation intensity was recorded continuously on a 100-mm COVAS (0, no sensation to 100, maximum, strongest imaginable pain sensation). The subjects were also asked to indicate whether they experienced any nonpainful sensation.
Countries
United States