Use of oral contraceptives for management of acne vulgaris and hirsutism in women of reproductive and late reproductive age

Hormonal contraception, as well as contraceptive action, is used also for other indications like dysmen- orrhoea, menstrual disorders, endometriosis, acne vulgaris, and hirsutism [1]. According to epidemiologi- cal data, hirsutism affects 5-15% [2] and acne affects 6-55% [3] of the female population. Both hirsutism and acne are signs of hyperandrogenaemia [4] but are not always related to abnormal hormonal background [5]. Among the causes of hyperandrogenaemia polycystic ovary syndrome, hyperthecosis, adrenal hyperplasia, obesity, Cushing syndrome, androgen secreting ovar - ian and adrenal tumours, and liver insufficiency are re- ported [4]. These are related to increased androgen syn- thesis or impaired androgen inactivation. Although the pathogenesis of acne and hirsutism is multifactorial, it is usually related to the intracrine synthesis of active androgens in the skin. Sebaceous glands and hair fol- licles act as independent endocrine organs and respond to the different levels of androgens [6-8]. The androgens synthesised by adrenal glands and ovaries are converted in enzymatic reactions in seba- ceous glands and hair follicles into dihydrotestoster - one (DHT). Dihydrotestosterone is 5 to 10 times more potent androgen receptor agonist than testosterone. DHT is synthesised from testosterone in the presence of 5α-reductase [6]. Intracrine synthesis and possible oversensitivity of the sebaceous gland and hair follicles to androgens explains why the women affected by acne and hirsutism may have normal androgen levels [9]. Use of oral contraceptives for management of acne vulgaris and hirsutism in women of reproductive and late reproductive age Radosław Słopień, Ewa Milewska, Piotr Rynio, Błażej Męczekalski Department of Gynecological Endocrinology, Poznan University of Medical Sciences, Poland

Hormonal contraception in both reproductive and late reproductive age, as well as contraceptive action, is used also for other indications like dysmenorrhoea, menstrual disorders, endometriosis, acne vulgaris, and hir- sutism. Acne vulgaris and hirsutism are important signs related to hyperandrogenaemia and present a serious medical problem for the patients and a challenge for medical doctors in terms of effective treatment. The ap- plication of hormonal contraception to treat acne vulgaris and hirsutism requires knowledge of the mechanism of antiandrogenic actions and the possible contraindications and complications. These data are presented in this review. Key words: hormonal contraception, acne, hirsutism. Hormonal contraception Hormonal contraception consists of combined hor - monal contraception and progestin-only contraception. Combined hormonal contraception consists of two components: oestrogen and progestin, and is marketed in the form of pills, patches, and vaginal rings. Progestin only contraception is marketed in the form of pills, in- jections, intrauterine devices, and implants. Combined contraception may have a beneficial impact in the treatment of skin changes; progestin-only contracep- tion may not help in the treatment of skin problems and may even worsen the state of the skin [10]. The oestrogen components of combined contracep- tion are ethinyl oestradiol and oestradiol valerate. The oestrogen content of the contraceptive combined pill is very small in relation to the oestrogen content of the pills produced in late 1950s and 1960s. The decrease of oestrogen compound caused an increase of the impor- tance of the progestin compound [11]. Progestins in contraceptive pills may be divided into two groups: 17-OH progesterone derivates and 19-nort- estesterone derivates. Among 17-OH progesterone derivates nomegestrol, medroxyprogesterone acetate, cyproterone acetate, and chlormadinone acetate are used. Among 19-nortesterone derivates there are three generations that differ in relation to antigonadotropic, progesteronic, and androgenic properties [12]. First- generation progestins have both progesterone and an- drogen receptor affinity, while second-generation pro- gestins are more progestagenic and less androgenic. Corresponding author: Błażej Męczekalski, Department of Gynecological Endocrinology, Poznan University of Medical Sciences, Polna 33, 60-135 Poznan, Poland, e-mail: [email protected] Menopause Review/Przegląd Menopauzalny 17(1) 2018 2 Third-generation progestins are strong progesterone agonists with even less androgenic activity. Typical first- and second-generation progestins used in clini- cal practice are norethisterone and levonorgestrel re- spectively. Third-generation progestins include norges- timate, gestodene, and desogestrel. Also there are also so-called fourth-generation progestins, designed to be without androgenic properties. The first of these is dro- spirenone, which is an antimineralocorticoid spironol- actone derivate [13]. The second is dienogest, which is structurally related to 19-nortestesterone [14]. Late reproductive age and combined contraception Combined contraception may be used in women in late reproductive age without smoking, hypertension, and BMI higher than 35 kg/m 2. In this group, higher risk of cardiovascular disease and brain stroke should be kept in mind. In these women the lowest dose of ethinyl oestradiol should be chosen. Apart from effective con- traception, these pills may ameliorate irregular menses, heavy bleedings, climacteric symptoms, and bone den- sity loss [11]. Hirsutism and acne may occur for the first time or aggravate in late reproductive age. This phenomenon is related to decrease of oestrogen level and no change in androgen secretion [10]. Oral contraception: mechanisms of antiandrogenic action Antiandrogenic properties of combined contracep- tion are related to both components of the pill: oestro- gen and progestin. Oestrogen stimulates sex hormone binding globulin (SHBG) liver synthesis that in turn reduces the amount of biologically active androgens, induces oestrogen receptor expression, and decreases gonadotrophin secretion that inhibits LH-related tes- tosterone production by theca cells in the ovaries [15]. Progestins block 5α-reductase activity, and decrease testosterone receptor expression and gonadotrophin (FSH, LH) synthesis [11]. 5α-reductase is responsible for the conversion of testosterone into DHT. Both com- ponents of combined contraception lower the levels of adrenocorticotropic hormone (ACTH) that in conse- quence has inhibitory effect on adrenal androgenesis (dehydroepiandrosterone and dehydroepiandrosterone sulphate production) [16, 17].

of clinical studies The progestins of documented antiandrogenic ac- tivity are as follows: levonorgestrel, norethindrone acetate, norgestimate, chlormadinone acetate, dro- spirenone, dienogest, and cyproterone acetate [1]. Cyproterone acetate (2 mg of cyproterone acetate and 0.35 of ethinyl oestradiol) after 3 months of treat- ment caused subjective improvement in hirsutism in 83%, improvement in trichoscopy in 77%, visible im- provement in acne in 40%, and very good cosmetic effect in 26% of patients. 86% of patient finished the study, which suggests very good compliance and toler- ability [18]. In a comparative study cyproterone acetate showed the stronger antiandrogen activity than dro- spirenone after 12 months of therapy (there was no dif- ference after 6 months of therapy) [19]. Chlormadinone acetate (2 mg of chlormadinone ac- etate and 0.03 mg of ethinyl oestradiol) was effective in the treatment of mild to moderate acne and hirsutism [20], caused visible improvement in hirsutism and seb- orrhoea after 12 months of treatment [21], improve- ment of acne after 3, 6, and 12 months of treatment [22], and a relevant decrease of percentage of patients suffering from acne from 46.5% to 14.9% after 13 cycles of treatment [23]. Chlormadinone acetate reduced the number of patients with skin problems (–55%), reduced the number of patients seeking dermatological treat- ment (–67%) and concealer cosmetics (–55%) and the number of patients who felt that their self-esteem was restricted due to skin problems (–67%) [24]. Chlorma- dinone acetate was more effective in the treatment of acne than levonorgestrel [1] and was more antiandro- genic than dienogest [25]. Drospirenone (3 mg of drospirenone and 0.02 mg of ethinyl estradiol) caused improvement in acne after 6 months of treatment [26], significant improvement in the trunk acne (improvement > 50%) after 6 months of treatment [27] and significant reduction of skin prob- lems treatment costs [28]. Drospirenone was more ef- fective in the treatment of acne than norgestimate [1]. Drospirenone was more effective than chlormadinone acetate in the treatment of skin changes such as seb- orrhoea, acne, increased hair, hydration, homogeneity, and overall quality of the skin [29]. Dienogest significantly improved acne in 52% of treated patients in one study [30] and in 66% of treat- ed patients in another one [31] and its antiandrogenic properties were also seen in a meta-analysis of 56 clini- cal studies (2266 women treated) [32]. Dienogest was more antiandrogenic than both drospirenone and chlo- rmadinone acetate [25]. Adding antiandrogen to oral contraceptives Adding an antioestrogen to an OC can be considered when initial response to 6 months of OC monotherapy has been inadequate. Available antiandrogens are fol- lowing: spironolactone (aldosterone and androgen re- Menopause Review/Przegląd Menopauzalny 17(1) 2018 3 ceptor antagonist; the mechanism of its action is based on the competition with DHT for binding to the androgen receptor and inhibition of enzymes involved in andro- gen biosynthesis), cyproterone acetate (CPA – is a 17 hy- droxyprogesterone derivative which competes with DHT for binding to the androgen receptor and reduces serum LH and ovarian androgen concentrations) [33]. Oral contraception safety The real nightmare for every clinician is a serious ad- verse event during therapy. From time to time medical journals report a complication that is possibly related to the use of oral contraception. One of them was brain stroke in a 23-year-old fitness trainer after 3 weeks of oral contraception because of acne [34]. The patient used 2 mg of cyproterone acetate and 0.35 of ethinyl oestradiol and had no other risk factors of thrombosis. She was diagnosed with nonfluent aphasia and fully re- covered after thrombolytic treatment. Oral contraception and the risk of thrombosis Oral contraception increases the risk of thrombo- sis. The risk of thrombosis is highest during the first year of use [35], and it depends on the dose of ethinyl oestradiol and the type of progestin used. Cyproterone acetate use is related to the highest risk of thrombosis: relative risk of thrombosis during cyproterone acetate use is 6.35 (95% CI: 5.09-7.93) with number needed to harm per year (NNH) 890 [36], the relative risk of brain stroke is 1.4 (95% CI: 0.97-2.03); NNH: 44,643 and relative risk of heart infarction: 1.47 (95% CI: 0.83-2.61); NNH: 303,951 [37]. The relative risk of thrombosis dur - ing the use of norethisterone, levonorgestrel, and norg- estimate is 2-3 with NNH: 2381-4762 [25]. Dienogest has a similar risk profile to levonorgestrel [38]. The rela- tive risk of thrombosis during the use of desogestrel, gestodene, drospirenone, and contraceptive intravagi- nal rings was 4-6 with NNH: 952-1587 [39]. Chlormadi- none acetate was reported to have a similar risk profile to desogestrel [40]. Who should be treated with hormonal contraception Hirsutism and acne vulgaris may be symptoms of hormonal disturbances like polycystic ovary syndrome or adrenal hyperplasia. Idiopathic hirsutism is also a serious medical problem. In the case of hormonal dis- turbances the use of hormonal contraception not only improves the cosmetic situation of the patient but is also necessary to decrease the risks related to hyperan- drogenaemia [41]. Hormonal tests are indicated in patients with acne resistant to treatment, in patients with hirsutism, and in patients with menstrual disorders. In this case, the following hormonal tests should be done: follitropin (FSH), lutropin (LH), total testosterone (T), sex hormone binding globulin (SHBG), dehydroepiandrosterone sul- phate (DHEAS), 17OH-progesterone, thyrotropin (TSH), and prolactin (PRL) [42]. Contraindication to oral contraception According to WHO recommendations, the contrain- dications to oral contraception are as follows: pregnan- cy, breast feeding, history of deep venous thrombosis and thromboembolic event, active liver disease, smok- ing after the age of 35 years, migraine, breast cancer, hypertension, diabetes mellitus with vascular changes, and long-term immobilisation [43]. Summary In summary the application of combined hormonal contraception in the treatment of acne vulgaris and hir- sutism improves the cosmetic situation and should be considered as an effective option. This therapy should be applied after evaluation of the hormonal profile of the patient and exclusion of possible contraindications. In this setting hormonal therapy is relatively safe but possible serious complications should be discussed with the patient. Disclosure Authors report no conflict of interest.

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