A real-world, community-based cohort study comparing the effectiveness of topical fluoruracil versus topical imiquimod for the treatment of actinic keratosis

JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY

卷:78

Article

Neugebauer, Romain¹  Levandoski, Katherine A.^2,3  Zhu, Zheng¹  Sokil, Monica¹  Chren, Mary-Margaret⁴  Friedman, Gary D.¹  Asgari, Maryam M.^1,2,3 

[1] Kaiser Permanente Northern Calif, Div Res, Oakland, CA USA

[2] Massachusetts Gen Hosp, Dept Dermatol, Boston, MA 02114 USA

[3] Harvard Med Sch, Dept Populat Med, Harvard Pilgrim Hlth Care Inst, Boston, MA USA

[4] Univ Calif San Francisco, Dept Dermatol, San Francisco, CA 94143 USA

关键词: actinic keratosis;    basal cell carcinoma;    comparative effectiveness;    keratinocyte carcinoma;    skin cancer;    squamous cell carcinoma;   

DOI  :  10.1016/j.jaad.2017.12.042

来源: Elsevier

【 摘 要 】

Background: The most widely used topical agents for the field-based treatment of multiple actinic keratoses (AKs) are 5-fluorouracil and imiquimod, but their comparative effectiveness has not been assessed in a real-world setting. Objective: We compared the effectiveness of 5-fluorouracil and imiquimod in reducing risk for subsequent AKs in a large, integrated health care delivery system in northern California. Methods: In this cohort study, we identified adult health plan members who had an AK diagnosed in 2007 and who subsequently filled a prescription for 5-fluorouracil or imiquimod (N = 5700). We followed subjects for subsequent AKs identified by the International Classification of Diseases codes and estimated the 2-year (short-term) and 5-year (long-term) differences in cumulative risk while controlling for potential confounding by pretreatment variables. Results: 5-Fluorouracil reduced the short-term incidence of subsequent AKs (cumulative risk difference -4.54% [95% confidence interval, -7.91% to -1.17%]), but there was no statistically significant evidence of a long-term decreased risk (cumulative risk difference -1.43% [95% confidence interval, -3.43% to 0.05%]) compared with that with imiquimod. Limitations: This is a retrospective study with limited ascertainment of all relevant potential confounding variables. Conclusion: We found that 5-fluorouracil appeared to be significantly more effective than imiquimod in the short-term, but not long-term, prevention of subsequent AKs. (J Am Acad Dermatol 2018;78:710-6.)

【 授权许可】

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