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Sylvie Salenave, Valérie Bernard, Christine Do Cao, Laurence Guignat, Anne Bachelot, Sophie Leboulleux, Céline Droumaguet, Hélène Bry-Gauillard, Peggy Pierre, Lise Crinière, Pietro Santulli, Philippe Touraine, Philippe Chanson, Martin Schlumberger, Dominique Maiter, Eric Baudin, Jacques Young, Ovarian macrocysts and gonadotrope–ovarian axis disruption in premenopausal women receiving mitotane for adrenocortical carcinoma or Cushing's disease, European Journal of Endocrinology, Volume 172, Issue 2, Feb 2015, Pages 141–149, https://doi.org/10.1530/EJE-14-0670
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Abstract
Mitotane is an adrenolytic and anticortisolic drug used in adrenocortical carcinoma (ACC), Cushing's disease (CD), and ectopic ACTH syndrome. Its effects on the ovaries are unknown.
To evaluate the ovarian and gonadotrope effects of mitotane therapy in premenopausal women.
We studied 21 premenopausal women (ACC: n=13; CD: n=8; median age 33 years, range 18–45 years) receiving mitotane at a median initial dose of 3 g/day (range 1.5–6 g/day).
Gynecological history was collected and ovarian ultrasound was performed. Four women also underwent ovarian CT or magnetic resonance imaging. Serum gonadotropin, estradiol (E2), androgens, sex hormone-binding globulin (SHBG), and circulating mitotane levels were determined at diagnosis and during mitotane therapy.
In the women included, ovarian macrocysts (bilateral in 51%) were detected after a median 11 months (range: 3–36) of mitotane exposure. The median number of macrocysts per woman was two (range: 1–4) and the median diameter of the largest cysts was 50 mm (range: 26–90). Menstrual irregularities and/or pelvic pain were present in 15 out of 21 women at macrocyst diagnosis. In two women, the macrocysts were revealed by complications (ovarian torsion and hemorrhagic macrocyst rupture) that required surgery. Mitotane therapy was associated with a significant decrease in androstenedione and testosterone levels and a significant increase in LH levels. Serum FSH and E2 levels were also increased, and SHBG levels rose markedly.
Mitotane therapy causes significant morphological and ovarian/gonadotrope hormonal abnormalities in premenopausal women. Follicular thecal steroid synthesis appears to be specifically altered and the subsequent increase in gonadotropins might explain the development of macrocysts. The mechanisms underlying these adverse effects, whose exact prevalence in this population still needs to be determined, are discussed.
