The use of biodegradable microneedle patches to increase penetration of topical steroid for prurigo nodularis

Jung U. Shin, Jung Dong Kim, Hong Kee Kim, Hong Kyu Kang, Chulmin Joo, Ju Hee Lee, Do Hyeon Jeong, Seungri Song, Howard Chu, Jung Soo Lee, Hemin Lee, Kwang Hoon Lee

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Background: The stratum corneum is an almost impermeable barrier. Recently, microneedles have been used to increase drug delivery passing the stratum corneum by incorporating the drug within the microneedle or by coating the surface of the microneedle with the drug. Objective: This study was performed to investigate whether applying a biodegradable microneedle patch after topical steroid application increases penetration of the steroid in vitro, as well as treatment efficacy in patients with prurigo nodularis. Materials & methods: In vitro penetration of topical steroids after biodegradable microneedle patch application was measured using a 3D skin model. To evaluate the treatment efficacy of the combination of biodegradable microneedle and topical steroids, a split-body clinical study was performed. Results: Penetration of topical steroid in the in vitro skin model was significantly greater in the microneedle-applied skin. In a split-body clinical study with prurigo nodularis patients, the area and height of skin lesions decreased after four weeks of treatment on both sides, however, the microneedle patch side exhibited a significantly greater decrease in both area and height, compared to the control side. The pruritus visual analogue scale was also significantly lower on the microneedle side. Conclusion: We suggest that simply applying a microneedle patch after topical steroid application could be a useful strategy for treating refractory skin diseases such as prurigo nodularis.

Original languageEnglish
Pages (from-to)71-77
Number of pages7
JournalEuropean Journal of Dermatology
Issue number1
Publication statusPublished - 2018 Jan 1

Bibliographical note

Funding Information:
Disclosure. Financial support: this work was supported by a grant from Technological Innovation and Development Project (Grant No. S2175482) funded by the KOREA Small & Medium Business Administration in 2014. Conflict of interest: none.

Publisher Copyright:
© 2018, John Libbey Eurotext.

All Science Journal Classification (ASJC) codes

  • Dermatology


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