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J Dtsch Dermatol Ges. 2007 May;5(5):391-5.

Comparison of the efficacy and safety of topical minoxidil and topical alfatradiol in the treatment of androgenetic alopecia in women.

[Article in English, German]

Author information

1
Department of Dermatology and Allergy, Charité- Medical University, Berlin, Germany. ulrike.blume-peytavi@charite.de

Abstract

BACKGROUND:

Two drugs which are approved for the treatment of androgenetic alopecia in women in Germany were compared with regard to their influence on hair growth.

PATIENTS AND METHODS:

Patients were randomized to group I (n = 52) who used 2% minoxidil solution twice daily for a period of 12 months or to group II (n = 51) who used 0.025% alfatradiol solution once daily for 6 months and were then switched to 2% minoxidil solution for months 7-12. Changes in hair growth parameters were determined using the TrichoScan.

RESULTS:

Topical treatment with 2% minoxidil solution for 6 months resulted in a significant increase of cumulative hair thickness (p < 0.0001) and absolute hair density (p < or = 0.0025), whereas these parameters of hair growth remained nearly unchanged after 6 months of treatment with alfatradiol solution. Evaluation of the same parameters from month 7 to month 12 demonstrated that 12 months minoxidil treatment resulted in an increasing stabilization (group I). After the alfatradiol-->minoxidil switch in group II a significant increase in cumulative hair thickness (p < 0.0001) and absolute hair density (p < 0.0001) was achieved. Both study medications were well tolerated.

CONCLUSIONS:

Treatment with minoxidil can induce an increase in hair density and hair thickness,whereas treatment with alfatradiol results in deceleration or stabilization of hair loss.

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