Imiquimod in dermatology: an overview

Area of Science:

• Dermatology
• Immunology

Background:

• Imiquimod is an immune response modifier available as topical creams (3.75% and 5%).
• It stimulates both innate and adaptive immune responses, inducing cytokine production.
• These effects enable its use in treating diverse benign and malignant skin conditions.

Purpose of the Study:

• To review the mechanism of action of topical imiquimod.
• To outline its US Food and Drug Administration (FDA)-approved indications.
• To discuss its off-label uses and potential side effects.

Main Methods:

• Literature review of existing evidence on topical imiquimod.
• Analysis of studies detailing its mechanism, efficacy, and safety.
• Compilation of FDA-approved and off-label applications.

Main Results:

• Topical imiquimod demonstrates antiviral, antitumor, and immunoregulatory effects.
• FDA-approved indications include anogenital warts, actinic keratosis, and superficial basal cell carcinomas.
• Evidence suggests beneficial effects in treating various other skin disorders.

Conclusions:

• Topical imiquimod is a versatile immune response modifier with established and potential therapeutic applications in dermatology.
• Understanding its mechanism and diverse uses is crucial for effective patient management.
• Further research may expand its clinical utility for a broader range of skin conditions.