Topical diphenylcyclopropenone in the treatment of alopecia areata: A 10-year follow-up of 86 cases in a single center

Background: Diphenylcyclopropenone (DPCP) is a topical contact allergen used for contact immunotherapy in alopecia areata (AA). Objectives: We aimed to evaluate the treatment effectiveness and prognostic factors in Taiwanese patients with AA treated with topical DPCP. Methods: We performed a retrosp...

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Main Authors: Chang-Ming Huang, Tsen-Fang Tsai
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2022-01-01
Series:Dermatologica Sinica
Subjects:
Online Access:http://www.dermsinica.org/article.asp?issn=1027-8117;year=2022;volume=40;issue=4;spage=214;epage=221;aulast=Huang
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author Chang-Ming Huang
Tsen-Fang Tsai
author_facet Chang-Ming Huang
Tsen-Fang Tsai
author_sort Chang-Ming Huang
collection DOAJ
description Background: Diphenylcyclopropenone (DPCP) is a topical contact allergen used for contact immunotherapy in alopecia areata (AA). Objectives: We aimed to evaluate the treatment effectiveness and prognostic factors in Taiwanese patients with AA treated with topical DPCP. Methods: We performed a retrospective study of all consecutive patients with AA affecting more than 10% of scalp area treated with topical DPCP for more than 90 days. Results: Eighty-six patients were assessed in the study. The greatest hair regrowth percentages of 0%, 1%–25%, 26%–50%, 51%–75%, and 76%–100% were 26.7% (23/86), 7.0% (6/86), 2.3% (2/86), 10.5% (9/86), and 53.5% (46/86) of patients, respectively. 32.6% (28/86) of patients achieved near-complete remission (with or without maintenance DPCP therapy), defined as more than 90% sustainable hair regrowth. Positive prognostic factors include older age of onset, shorter duration of AA before DPCP treatment, less severity of hair loss, and no nonscalp hair loss. Multivariate logistic regression analysis showed that more than a 2-year duration of AA before DPCP treatment (P = 0.015) and more than 90% of hair loss (P = 0.032) had a poorer treatment outcome. Factors including eczematous sensitization reaction, history of atopy, adverse reactions, or concentrations of DPCP do not predict treatment effectiveness. Pigmentary change may cause cosmetic concerns in Chinese ethnicity. Conclusion: Topical DPCP is effective for AA. Various factors were associated with the clinical outcomes. Monitoring the possible adverse events is warranted.
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spelling doaj.art-d266724eff1641ad92f90302b22322042023-01-12T11:23:03ZengWolters Kluwer Medknow PublicationsDermatologica Sinica1027-81172223-330X2022-01-0140421422110.4103/1027-8117.360448Topical diphenylcyclopropenone in the treatment of alopecia areata: A 10-year follow-up of 86 cases in a single centerChang-Ming HuangTsen-Fang TsaiBackground: Diphenylcyclopropenone (DPCP) is a topical contact allergen used for contact immunotherapy in alopecia areata (AA). Objectives: We aimed to evaluate the treatment effectiveness and prognostic factors in Taiwanese patients with AA treated with topical DPCP. Methods: We performed a retrospective study of all consecutive patients with AA affecting more than 10% of scalp area treated with topical DPCP for more than 90 days. Results: Eighty-six patients were assessed in the study. The greatest hair regrowth percentages of 0%, 1%–25%, 26%–50%, 51%–75%, and 76%–100% were 26.7% (23/86), 7.0% (6/86), 2.3% (2/86), 10.5% (9/86), and 53.5% (46/86) of patients, respectively. 32.6% (28/86) of patients achieved near-complete remission (with or without maintenance DPCP therapy), defined as more than 90% sustainable hair regrowth. Positive prognostic factors include older age of onset, shorter duration of AA before DPCP treatment, less severity of hair loss, and no nonscalp hair loss. Multivariate logistic regression analysis showed that more than a 2-year duration of AA before DPCP treatment (P = 0.015) and more than 90% of hair loss (P = 0.032) had a poorer treatment outcome. Factors including eczematous sensitization reaction, history of atopy, adverse reactions, or concentrations of DPCP do not predict treatment effectiveness. Pigmentary change may cause cosmetic concerns in Chinese ethnicity. Conclusion: Topical DPCP is effective for AA. Various factors were associated with the clinical outcomes. Monitoring the possible adverse events is warranted.http://www.dermsinica.org/article.asp?issn=1027-8117;year=2022;volume=40;issue=4;spage=214;epage=221;aulast=Huangalopecia areataalopecia totalisalopecia universaliscontact dermatitisdiphenylcyclopropenonetopical immunotherapy
spellingShingle Chang-Ming Huang
Tsen-Fang Tsai
Topical diphenylcyclopropenone in the treatment of alopecia areata: A 10-year follow-up of 86 cases in a single center
Dermatologica Sinica
alopecia areata
alopecia totalis
alopecia universalis
contact dermatitis
diphenylcyclopropenone
topical immunotherapy
title Topical diphenylcyclopropenone in the treatment of alopecia areata: A 10-year follow-up of 86 cases in a single center
title_full Topical diphenylcyclopropenone in the treatment of alopecia areata: A 10-year follow-up of 86 cases in a single center
title_fullStr Topical diphenylcyclopropenone in the treatment of alopecia areata: A 10-year follow-up of 86 cases in a single center
title_full_unstemmed Topical diphenylcyclopropenone in the treatment of alopecia areata: A 10-year follow-up of 86 cases in a single center
title_short Topical diphenylcyclopropenone in the treatment of alopecia areata: A 10-year follow-up of 86 cases in a single center
title_sort topical diphenylcyclopropenone in the treatment of alopecia areata a 10 year follow up of 86 cases in a single center
topic alopecia areata
alopecia totalis
alopecia universalis
contact dermatitis
diphenylcyclopropenone
topical immunotherapy
url http://www.dermsinica.org/article.asp?issn=1027-8117;year=2022;volume=40;issue=4;spage=214;epage=221;aulast=Huang
work_keys_str_mv AT changminghuang topicaldiphenylcyclopropenoneinthetreatmentofalopeciaareataa10yearfollowupof86casesinasinglecenter
AT tsenfangtsai topicaldiphenylcyclopropenoneinthetreatmentofalopeciaareataa10yearfollowupof86casesinasinglecenter