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KMID : 0941820150250030171
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Korean Journal of Clinical Pharmacy
2015 Volume.25 No. 3 p.171 ~ p.177
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Retrospective Pharmacotherapeutic Evaluation of Dutasteride not Approved by US FDA for Androgenetic Alopecia in Korea
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Cheon Young-Ju
Kim Jung-Tae
Lim Sung-Cil
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Abstract
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Background: Androgenetic alopecia (AGA), one of alopecias, requires continuous treatment in order to prevent or stop it, and patient’s compliance is very important. Currently, only two drugs (finasteride, minoxidil) have been approved for AGA by Food and Drug Administration of United States (US FDA). However, another α-2 reductase inhibitor, dutasteride, is approved by Korea Ministry of Food and Drug Safety (MFDS) through a phase III trial. For treatment, pharmacotherapy of AGA usually combines topical minoxidil 7% with one of oral α-2 reductase inhibitor.
Objectives: We evaluated the comparative efficacy and adverse effect between topical minoxidil 7%/finasteride 1 mg and topical minoxidil 7%/dutasteride 0.5 mg pharmacotherapy for outpatients with AGA. Also we evaluated the relationship between therapeutic effect and regular hospital visit.
Method: This study was performed retrospectively based on electronic medical record (EMR) data of total 98 patients (topical minoxidil 7% with dutasteride 0.5 mg (Avodart®) or finasteride 1 mg (Alopecia®, Propecia®) with diagnosis of AGA from department of dermatology at a secondary hospital from January 1st, to May 31st, 2014.
Results: The efficacy and adverse event of topical minoxidil 7%/dutasteride 0.5 mg (DUTA group) were 100% and 45.7%, and of topical minoxidil 7%/finasteride 1 mg (FINA group) were 92.1% and 33.3%, respectively. The mean onset time of responses and adverse events in the FINA group were 3.86 months and 4.43 months. Those in the DUTA group were 3.97 months and 5.06 months.
Conclusion: Both FINA and DUTA group were highly effective, but the DUTA group showed higher efficacy and adverse effects than those in the FINA group. Dutasteride may be another alternative in AGA treatment.
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KEYWORD
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alopecia, dutasteride, finasteride, minoxidil
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