title: Six-month administration of 1% testosterone gel is able to restore erectile function in hypogonadal patients with erectile dysfunction.
abstract: OBJECTIVE
  The relationship between hypogonadism and erectile dysfunction (ED) has not been completely clarified. Data derived from studies evaluating the effect of testosterone (T) replacement therapy (TRT) on patients with ED have yield mixed results. The purpose of the present study was to evaluate the efficacy and safety of a 50 mg/day of 1% hydroalcoholic testosterone gel applied on non-scrotal skin for hypogonadal men with sexual dysfunction.
  
  
  METHODS
  We studied a consecutive series of 85 hypogonadal (total testosterone < 12 nmol/L) men (mean age 51.0 +/- 14.0 years) attending our Andrological Unit. Patients were interviewed using ANDROTEST structured interview, a 12-item tool previously validated for the screening of hypogonadism in patients with sexual dysfunction. Patients were also invited to complete erectile function domain of International Index of Erectile Function (IIEF-6;11). Different clinical and biochemical parameters were evaluated at baseline and after 6 months of TRT.
  
  
  RESULTS
  Subjects with ED at baseline (61.2%) showed significant increase of IIEF-6 score after 6 months of TRT (9.7 +/- 7.7 vs. 14.6 +/- 9.8, p < 0.001). Furthermore, subjects with more severe hypogonadism at baseline (T in the lowest quartile) showed the best increase in IIEF-6 score. All haematological and biochemical parameters tested remained in the normal rage at the end of the study.
  
  
  CONCLUSIONS
  Our study demonstrated that 1% hydroalcoholic testosterone gel is an effective and safe treatment option in subjects with ED.
authors.affiliation: Andrology Unit, Department of Clinical Physiopathology, University of Florence, Florence, Italy. jocorona@libero.it
authors.forename: Giovanni
authors.initials: G
authors.lastname: Corona
authors.forename: Luisa
authors.initials: L
authors.lastname: Petrone
authors.forename: Alessandra D
authors.initials: AD
authors.lastname: Fisher
authors.forename: Riccardo
authors.initials: R
authors.lastname: Mansani
authors.forename: Elisa
authors.initials: E
authors.lastname: Bandini
authors.forename: Valentina
authors.initials: V
authors.lastname: Boddi
authors.forename: Francesco
authors.initials: F
authors.lastname: Lotti
authors.forename: Gianni
authors.initials: G
authors.lastname: Forti
authors.forename: Mario
authors.initials: M
authors.lastname: Maggi
mesh_terms: D007172:Erectile Dysfunction / Q000188:drug therapy* / Q000209:etiology*; D005782:Gels; D006801:Humans; D007006:Hypogonadism / Q000150:complications*; D008297:Male; D008875:Middle Aged; D013739:Testosterone / Q000008:administration & dosage*; D013997:Time Factors
chemical_list: D005782:Gels; D013739:Testosterone