[Local therapy of androgenetic alopecia with 17 alpha-estradiol. A controlled, randomized double-blind study (author's transl)].
In a controlled, randomized double-blind study, 51 patients with androgenetic alopecia and increased hair loss (telogen rate greater than 20%) were treated by local application of hair lotions with and without 17 alpha-estradiol (0.025%) for a period of at least 6 months. Before and after therapy trichograms were taken and evaluated under standardized conditions. In 63% of the treated patients a reduction of the amount of telogen hairs appeared, whereas in the control group the same reduction was found in only 37% of the cases. Similarly, in the treated group only 11% of the patients worsened, in contrast to 50% of the control group who showed an increased telogen rate (greater than 10%). The amount of growing anagen hairs and of seborrhea did not change significantly in both groups. Side effects were not seen. These findings indicate that hair lotions containing 17 alpha-estradiol may have a therapeutic value in reducing androgenetic hair loss, if applied topically for a long period of time, similar to 17 beta-estradiol. However, no regrowth of new hair was found.
D000287:Administration, Topical; D000293:Adolescent; D000328:Adult; D000505:Alopecia / Q000188:drug therapy*; D004311:Double-Blind Method; D004958:Estradiol / Q000008:administration & dosage / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
D004958:Estradiol
Lokaltherapie der Alopecia androgenetica mit 17 alpha-Ostradiol. Eine kontrollierte, randomisierte Doppelblindstudie.