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Combination therapy with clomiphene citrate and anastrozole is a safe and effective alternative for hypoandrogenic subfertile men
Author(s) -
Alder Nathan J.,
Keihani Sorena,
Stoddard Gregory J.,
Myers Jeremy B.,
Hotaling James M.
Publication year - 2018
Publication title -
bju international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.773
H-Index - 148
eISSN - 1464-410X
pISSN - 1464-4096
DOI - 10.1111/bju.14390
Subject(s) - testosterone (patch) , medicine , libido , combination therapy , urology , anastrozole , endocrinology , aromatase , cancer , breast cancer
Objectives To assess the efficacy and safety of combination therapy with clomiphene citrate ( CC ) and anastrozole ( AZ ) for male hypoandrogenism. Patients and Methods We identified patients treated with a combination of CC + AZ in the period 2014 to 2017. Data were gathered on patient characteristics and laboratory values at baseline. Total testosterone, bioavailable testosterone, oestradiol and testosterone:oestradiol ratio were measured before combination therapy (treatment with CC only) and at CC + AZ combination therapy follow‐ups. Treatment side effects were recorded; prostatic‐specific antigen and haematocrit levels were measured to assess safety after 6 months. As a secondary outcome, semen characteristics were compared at baseline and after at least 3 months of combination therapy when these data were available. Data were analysed using a paired t ‐test and Wilcoxon's signed‐rank test. Results A total of 51 men were included, with a mean age of 35.4 ± 7.4 years and a mean body mass index of 35.0 ± 8.0 kg/m 2 . After CC treatment, total testosterone, bioavailable testosterone, and oestradiol levels all significantly increased. AZ was added in all patients with hyperoestrogenaemia (oestradiol >50 pg/ mL ) or a testosterone:oestradiol ratio <10. CC + AZ therapy maintained therapeutic total testosterone and bioavailable testosterone levels while also normalizing oestradiol levels and testosterone:oestradiol ratio. Eleven patients experienced side effects: anxiety/irritability, n = 5; decreased libido, n = 4; elevated (>54%) haematocrit, n = 2. Conclusion Combination therapy with CC + AZ is an effective and safe alternative for patients with elevated oestradiol level or low testosterone:oestradiol ratio.

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