Hirsutism: metabolic effects of two commonly used oral contraceptives and spironolactone

A systematic review and meta-analysis of the impact of mineralocorticoid receptor antagonists on glucose homeostasis

BACKGROUND

Spironolactone, a nonselective mineralocorticoid receptor antagonist (MRA), may have a deleterious effect on glycemia. The objective of this review was to assess current knowledge on MRAs' influence (spironolactone, eplerenone, and canrenone) on glucose homeostasis and the risk of diabetes.

METHOD

A systematic review was conducted using the Medline database on articles published from 1946 to January 2017 that studied the effects of MRAs on any glucose-related endpoints, without any restrictions regarding the participants' characteristics.Study design, patient population, dose and duration of intervention, and the quantitative results on glycemic markers were extracted, interpreted for result synthesis, and evaluated for sources of bias. From the articles included in the qualitative analysis, a select number were used in a meta-analysis on studies having measured glycated hemoglobin (HbA1c) or risk of diabetes.

RESULTS

Seventy-two articles were selected from the Medline database and references of articles. Results on spironolactone were heterogeneous, but seemed to be disease-specific. A potential negative effect on glucose regulation was mainly observed in heart failure and diabetes trials, while a neutral or positive effect was detected in diseases characterized by hyperandrogenism, and inconclusive for hypertension. Interpretation of data from heart failure trials was limited by the small number of studies. From a meta-analysis of 12 randomized controlled studies evaluating spironolactone's impact on HbA1c in diabetic patients, spironolactone had a nonsignificant effect in parallel-group studies (mean difference 0.03 [-0.20;0.26]), but significantly increased HbA1c in crossover studies (mean difference 0.24 [0.18;0.31]). Finally, eplerenone did not seem to influence glycemia, while limited data indicated that canrenone may exert a neutral or beneficial effect.The studies had important limitations regarding study design, sample size, duration of follow-up, and choice of glycemic markers.

CONCLUSION

Spironolactone may induce disease-specific and modest alterations on glycemia. It is uncertain whether these effects are transient or not. Data from the most extensively studied population, individuals with diabetes, do not support a long-term glycemic impact in these patients. Further prospective studies are necessary to establish spironolactone's true biological effects and their clinical implications.

Interventions for hirsutism (excluding laser and photoepilation therapy alone)

BACKGROUND

Hirsutism occurs in 5% to 10% of women of reproductive age when there is excessive terminal hair growth in androgen-sensitive areas (male pattern). It is a distressing disorder with a major impact on quality of life. The most common cause is polycystic ovary syndrome. There are many treatment options, but it is not clear which are most effective.

OBJECTIVES

To assess the effects of interventions (except laser and light-based therapies alone) for hirsutism.

SEARCH METHODS

We searched the Cochrane Skin Group Specialised Register, CENTRAL (2014, Issue 6), MEDLINE (from 1946), EMBASE (from 1974), and five trials registers, and checked reference lists of included studies for additional trials. The last search was in June 2014.

SELECTION CRITERIA

Randomised controlled trials (RCTs) in hirsute women with polycystic ovary syndrome, idiopathic hirsutism, or idiopathic hyperandrogenism.

DATA COLLECTION AND ANALYSIS

Two independent authors carried out study selection, data extraction, 'Risk of bias' assessment, and analyses.

MAIN RESULTS

We included 157 studies (sample size 30 to 80) comprising 10,550 women (mean age 25 years). The majority of studies (123/157) were 'high', 30 'unclear', and four 'low' risk of bias. Lack of blinding was the most frequent source of bias. Treatment duration was six to 12 months. Forty-eight studies provided no usable or retrievable data, i.e. lack of separate data for hirsute women, conference proceedings, and losses to follow-up above 40%.Primary outcomes, 'participant-reported improvement of hirsutism' and 'change in health-related quality of life', were addressed in few studies, and adverse events in only half. In most comparisons there was insufficient evidence to determine if the number of reported adverse events differed. These included known adverse events: gastrointestinal discomfort, breast tenderness, reduced libido, dry skin (flutamide and finasteride); irregular bleeding (spironolactone); nausea, diarrhoea, bloating (metformin); hot flushes, decreased libido, vaginal dryness, headaches (gonadotropin-releasing hormone (GnRH) analogues)).Clinician's evaluation of hirsutism and change in androgen levels were addressed in most comparisons, change in body mass index (BMI) and improvement of other clinical signs of hyperandrogenism in one-third of studies.The quality of evidence was moderate to very low for most outcomes.There was low quality evidence for the effect of two oral contraceptive pills (OCPs) (ethinyl estradiol + cyproterone acetate versus ethinyl estradiol + desogestrel) on change from baseline of Ferriman-Gallwey scores. The mean difference (MD) was -1.84 (95% confidence interval (CI) -3.86 to 0.18).There was very low quality evidence that flutamide 250 mg, twice daily, reduced Ferriman-Gallwey scores more effectively than placebo (MD -7.60, 95% CI -10.53 to -4.67 and MD -7.20, 95% CI -10.15 to -4.25). Participants' evaluations in one study with 20 participants confirmed these results (risk ratio (RR) 17.00, 95% CI 1.11 to 259.87).Spironolactone 100 mg daily was more effective than placebo in reducing Ferriman-Gallwey scores (MD -7.69, 95% CI -10.12 to -5.26) (low quality evidence). It showed similar effectiveness to flutamide in two studies (MD -1.90, 95% CI -5.01 to 1.21 and MD 0.49, 95% CI -1.99 to 2.97) (very low quality evidence), as well as to finasteride in two studies (MD 1.49, 95% CI -0.58 to 3.56 and MD 0.40, 95% CI -1.18 to 1.98) (low quality evidence).Although there was very low quality evidence of a difference in reduction of Ferriman-Gallwey scores for finasteride 5 mg to 7.5 mg daily versus placebo (MD -5.73, 95% CI -6.87 to -4.58), it was unlikely it was clinically meaningful. These results were reinforced by participants' assessments (RR 2.06, 95% CI 0.99 to 4.29 and RR 11.00, 95% CI 0.69 to 175.86). However, finasteride showed inconsistent results in comparisons with other treatments, and no firm conclusions could be reached.Metformin demonstrated no benefit over placebo in reduction of Ferriman-Gallwey scores (MD 0.05, 95% CI -1.02 to 1.12), but the quality of evidence was low. Results regarding the effectiveness of GnRH analogues were inconsistent, varying from minimal to important improvements.We were unable to pool data for OCPs with cyproterone acetate 20 mg to 100 mg due to clinical and methodological heterogeneity between studies. However, addition of cyproterone acetate to OCPs provided greater reductions in Ferriman-Gallwey scores.Two studies, comparing finasteride 5 mg and spironolactone 100 mg, did not show differences in participant assessments and reduction of Ferriman-Gallwey scores (low quality evidence). Ferriman-Gallwey scores from three studies comparing flutamide versus metformin could not be pooled (I² = 62%). One study comparing flutamide 250 mg twice daily with metformin 850 mg twice daily for 12 months, which reached a higher cumulative dosage than two other studies evaluating this comparison, showed flutamide to be more effective (MD -6.30, 95% CI -9.83 to -2.77) (very low quality evidence). Data showing reductions in Ferriman-Gallwey scores could not be pooled for four studies comparing finasteride with flutamide as the results were inconsistent (I² = 67%).Studies examining effects of hypocaloric diets reported reductions in BMI, but which did not result in reductions in Ferriman-Gallwey scores. Although certain cosmetic measures are commonly used, we did not identify any relevant RCTs.

AUTHORS' CONCLUSIONS

Treatments may need to incorporate pharmacological therapies, cosmetic procedures, and psychological support. For mild hirsutism there is evidence of limited quality that OCPs are effective. Flutamide 250 mg twice daily and spironolactone 100 mg daily appeared to be effective and safe, albeit the evidence was low to very low quality. Finasteride 5 mg daily showed inconsistent results in different comparisons, therefore no firm conclusions can be made. As the side effects of antiandrogens and finasteride are well known, these should be accounted for in any clinical decision-making. There was low quality evidence that metformin was ineffective for hirsutism and although GnRH analogues showed inconsistent results in reducing hirsutism they do have significant side effects.Further research should consist of well-designed, rigorously reported, head-to-head trials examining OCPs combined with antiandrogens or 5α-reductase inhibitor against OCP monotherapy, as well as the different antiandrogens and 5α-reductase inhibitors against each other. Outcomes should be based on standardised scales of participants' assessment of treatment efficacy, with a greater emphasis on change in quality of life as a result of treatment.

Short term effects of spironolactone on blood lipid profile: a 3-month study on a cohort of young women with hirsutism

AIMS

To investigate the effects of spironolactone on serum lipids in women with hirsutism over a 3-month period.

METHODS

In a prospective setting, 27 hirsute women (20 with polycystic ovary syndrome and seven with idiopathic hirsutism) with a mean age of 23.0 +/- 5.1 years were studied at baseline and 3 months after receiving a daily dose of 100 mg of spironolactone. Patients did not receive any other medications and did not go through a specific diet during the study. Lipid profile, fasting blood glucose, testosterone, dehydroepiandrosterone sulphate (DHEAS) and prolactin (PRL) were measured at baseline and 3 months after therapy.

RESULTS

Mean body mass index of patients was 26.1 +/- 5.1 kg m(-2) before treatment and 25.9 +/- 5.7 kg m(-2) after treatment (NS). The therapy was associated with a significant decline of mean high-density lipoprotein (HDL), 39.5 mg dl(-1)[95% confidence interval (CI) 35.6, 43.4]vs. 32.2 mg dl(-1) (95% CI 29.2, 35.2), and a significant increase in mean low-density lipoprotein (LDL), 133.1 mg dl(-1) (95% CI 120.2, 146) vs. 150.8 mg dl(-1) (95% CI 139.1, 162.5), and cholesterol/HDL ratio, 5 (95% CI 4.4, 5.6) vs. 6.4 (95% CI 5.7, 7.1) (P < 0.05). No significant change was noted in total cholesterol, triglyceride or fasting blood glucose levels. Serum values of testosterone, DHEAS and PRL decreased significantly after 3 months of therapy (P < 0.05).

CONCLUSIONS

Spironolactone might have adverse effects on serum lipoprotein levels by increasing LDL and decreasing HDL over a short course of treatment. While treating hirsutism with spironolactone, special care should be given to women with metabolic disorders such as dyslipidaemia.

Evidence for statin therapy in polycystic ovary syndrome

Polycystic ovary syndrome (PCOS) is a common endocrine disorder in women of reproductive age group that is associated with increased cardiovascular risk. In addition to its lipid-lowering effects, statin therapy has shown been shown to have beneficial pleiotropic effects that may contribute to their reduction in cardiovascular morbidity and mortality. In this review, the effect of statins on PCOS is discussed with reference to the underlying potential mechanism of action.

Spironolactone versus placebo or in combination with steroids for hirsutism and/or acne

BACKGROUND

Hirsutism is the presence of excessive hair growth in women and is an important cosmetic condition often resulting in severe distress. The most common cause is by increased production of male sex hormones (androgens). It is also affected by increased sensitivity to androgens in the hair follicles, and secretory glands around hair follicles (sebaceous glands). Spironolactone is an antiandrogen and aldosterone antagonist used to treat hirsutism.

OBJECTIVES

The objective was to investigate the effectiveness of spironolactone and/or in combination with steroids (oral contraceptive pill included) in reducing excess hair growth and/or acne in women.

SEARCH STRATEGY

The Cochrane Menstrual Disorders and Subfertility Group (MDSG) trials register was searched (April 2008). The Cochrane MDSG register is based on regular searches of MEDLINE, EMBASE, CINAHL, PsycINFO and CENTRAL, handsearching of 20 relevant journals and conference proceedings, and searches of several key grey literature sources. In addition, all reference lists of relevant trials were searched and drug companies contacted for details of unpublished trials.

SELECTION CRITERIA

All randomised controlled comparisons of spironolactone versus: placebo, steroids (oral contraceptive pill included), spironolactone of varying dosages, or spironolactone and steroids versus steroids alone when used to reduce hair growth and acne in women.

DATA COLLECTION AND ANALYSIS

Nine trials were included in the review, eight trials were excluded. Two other trials are awaiting assessment. Only one trial studied acne as an outcome, the remainder were concerned with hirsutism. Major outcome measures include the following: subjective observations, Ferriman and Gallwey hair scores, hormonal and biochemical parameters, side effects, sebum production measurement.

MAIN RESULTS

In the two trials that compared 100 mg of spironolactone with placebo significant differences were reported for subjective improvements in hair growth (OR 7.18, 95% CI 1.96 to 26.28), although not the Ferriman-Galwey score (WMD 7.20, 95% CI -10.98 to -3.42)). Data could not be otherwise pooled as only one trial reported an outcome.

AUTHORS' CONCLUSIONS

From the studies included in this review, there is some evidence to show that spironolactone is an effective treatment to decrease the degree of hirsutism but there was no evidence for effectiveness for the treatment of acne vulgaris. Studies in this area are scarce and small. Individual study data indicates some superiority of spironolactone over other drugs but results cannot be generalised.

Spironolactone in the treatment of polycystic ovary syndrome: effects on clinical features, insulin sensitivity and lipid profile

This prospective clinical trial was designed to assess the effects of a long-term therapy with spironolactone, with and without dietary-induced weight-loss, on clinical features, lipid profile and insulin levels in women with polycystic ovary syndrome (PCOS). Twenty-five patients (range of age 16-32 yr; 13 lean and 12 overweight) fulfilling formal diagnostic criteria for PCOS (oligomenorrhea and/or amenorrhea, biochemical and/or clinical evidence of hyperadrogenism) were studied at baseline and then received oral spironolactone (100 mg/die) for 12 months; association with lifestyle modifications was recommended to all over-weight patients. Clinical, endocrine and metabolic parameters [oral glucose tolerance test (OGTT), lipid profile] were measured at baseline and at the end of the antiandrogen treatment. The therapy was associated with a significant average decline of triglycerides in overweight subjects and with increased HDL-cholesterol levels in lean patients. The insulin levels at 60 min during OGTT, homeostasis model assessment-insulin resistance and area under curve of insulin were significantly lowered in overweight women after 12 months of spironolactone and weight loss and no negative changes in insulin secretion and sensitivity were observed in PCOS women after pharmacological treatment alone. The efficacy of spironolactone on the androgenic clinical aspects of PCOS has been confirmed in this study. Furthermore, our data show that long-term treatment with spironolactone exerts no negative effects on lipoprotein profile and glucose metabolism; more relevant beneficial effects on glucose and lipid metabolism were observed when the antiandrogen was associated with weight loss in overweight PCOS women.

Sibutramine has a positive effect on clinical and metabolic parameters in obese patients with polycystic ovary syndrome

OBJECTIVE

To evaluate the effectiveness of sibutramine therapy alone and in combination with ethinyl estradiol-cyproterone acetate (EE-CPA) on the clinical and metabolic parameters of obese women with polycystic ovary syndrome (PCOS).

DESIGN

Prospective randomized, controlled study.

SETTING

Endocrinology and gynecology clinics.

PATIENT(S)

Forty obese women with PCOS.

INTERVENTION(S)

Group 1 was treated with oral EE-CPA (35 microg-2 mg/day), group 2 with oral sibutramine (10 mg/day), and group 3 with a combination of EE-CPA plus sibutramine for 6 months. All groups were advised to consume a diet of 1200 kcal/day.

MAIN OUTCOME MEASUREMENT(S)

Measurements were performed before and 6 months after treatment of body mass index, waist-to-hip ratio, systolic and diastolic blood pressure, Ferriman-Gallwey hirsutism score, total testosterone, free testosterone, sex hormone-binding globulin, dihydroepiandrosterone sulfate (DHEAS), total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglyceride, glucose and insulin during oral glucose tolerance test, and insulin sensitivity index; area under the curve for glucose and insulin were obtained from OGTT.

RESULT(S)

Body mass index, Ferriman-Gallwey hirsutism score, serum total testosterone, free testosterone, and DHEAS levels were significantly decreased and SHBG was significantly increased in all groups at the end of the study. WHR, diastolic blood pressure, and serum triglyceride level were significantly reduced only in the sibutramine group.

CONCLUSION(S)

Sibutramine might have a positive effect on hyperandrogenemia, and clinical and metabolic risk factors for cardiovascular disease in obese women with PCOS.

Spironolactone versus placebo or in combination with steroids for hirsutism and/or acne

BACKGROUND

Hirsutism is the presence of excessive hair growth in women and is an important cosmetic condition often resulting in severe distress. Hirsutism is most often caused by increased production of male sex hormones also known as androgens. It is also affected by increased sensitivity to androgens in the hair follicles, and the secretory glands around the hair follicles, called sebaceous glands. Spironolactone is an antiandrogen and aldosterone antagonist used to treat hirsutism.

OBJECTIVES

The objective of this review was to investigate the effectiveness of spironolactone and/or in combination with steroids (oral contraceptive pill included) in reducing excess hair growth and/or acne in women.

SEARCH STRATEGY

We searched the Cochrane Menstrual Disorders and Subfertility Group trials register (searched 12 June 2003). The Cochrane Menstrual Disorders and Subfertility Group register is based on regular searches of MEDLINE, EMBASE, CINAHL, PsycINFO and CENTRAL, the handsearching of 20 relevant journals and conference proceedings, and searches of several key grey literature sources. In addition, all reference lists of relevant trials were searched and drug companies contacted for details of unpublished trials.

SELECTION CRITERIA

All randomised controlled comparisons of spironolactone versus: placebo, steroids (oral contraceptive pill included), spironolactone of varying dosages, or spironolactone and steroids versus steroids alone when used to reduce hair growth and acne in women.

DATA COLLECTION AND ANALYSIS

Seven trials were included in the review, eight trials were excluded. Two other trials are awaiting assessment. All included trials were small (no more than 41 participants) randomised and controlled. Only one trial studied acne as an outcome, the remainder were concerned with hirsutism. Two trials investigated spironolactone versus placebo; one trial was a dosage studies of spironolactone; one trial compared spironolactone with spironolactone in combination with dexamethasone; one trial used topical spironolactone for the treatment of acne, one trial compared three treatments; spironolactone, finasteride, cyproterone acetate. Major outcome measures include the following: subjective observations, Ferriman and Gallwey hair scores, hormonal and biochemical parameters, side effects, sebum production measurement.

MAIN RESULTS

All sample populations were small and confidence intervals were wide. In the two trials that compared 100 mg of spironolactone with placebo significant differences were reported for subjective improvements in hair growth (OR 7.18, 95% CI 1.96 to 26.28), Ferriman-Galwey score (WMD 7.20, 95% CI -10.98 to -3.42)). The remaining comparisons were not statistically significant. There were statistically significant improvements in Ferriman-Galwey scores 12 months after the end of treatment in those women who received 100mg/day spironolactone compared to 12.5 mg/day cyproterone acetate (first 10 days of cycle) (WMD -1.18, 95% CI -2.1 to -0.26) and 5mg/day finasteride (WMD -2.34, 95% CI -3.23 to -1.45).

REVIEWER'S CONCLUSIONS

Six months treatment with 100 mg/day spironolactone compared with placebo was associated with a statistically significant subjective improvement in hair growth and a decrease in Ferriman-Galwey scores. Spironolactone 100mg/day is superior to finasteride 5 mg/day and low dose cyproterone acetate 12.5 mg/day (first 10 days of cycle) up to 12 months after the end of treatment. The effectiveness of treatment for acne vulgaris cannot be determined due to the small sample populations involved in the trials. Its value in clinical practice is difficult to assess from currently available research.

Does obesity diminish the positive effect of oral contraceptive treatment on hyperandrogenism in women with polycystic ovarian syndrome?

Polycystic ovarian syndrome (PCOS) is an obvious indication for long-term treatment. Combined oral contraceptives (COC) remain the first choice for the treatment of hyperandrogenism in most patients. However, differences in endocrine and metabolic parameters between obese and lean patients have been postulated. This is the first study evaluating the effect of COC treatment in obese versus non-obese PCOS patients. In total, 28 lean [body mass index (BMI) <25 kg/m(2))] and 15 obese (BMI >30 kg/m(2)) women patients were enrolled in the study. The concentrations of androgens, sex hormone-binding globulin (SHBG) and lipids were measured before and after 6 months of treatment with COC containing low-androgenic progestins. Clinical androgenic symptoms were monitored. There was a lower concentration of SHBG in obese patients, but there were no differences in androgen concentrations between both groups before the study. Highly significant changes in concentrations of testosterone (P < 0.001), androstenedione (P < 0.0001), SHBG (P < 0.001) and LH (P = 0.01) were demonstrated in lean patients, with only less significant changes in SHBG (P < 0.01) and testosterone (P < 0.05) in obese patients during the study. Clinical androgenic symptoms improved significantly (P = 0.05) only in the group of lean women. No reduction in low-density lipoprotein-cholesterol/high-density lipoprotein-cholesterol ratio was observed in either group. In conclusion, the positive effect of COC treatment on androgen production, serum androgen binding capacity, and clinical androgenic symptoms was negatively influenced by an increased BMI.

The current status of polycystic ovary syndrome

The importance of polycystic ovary syndrome (PCOS) has recently received much publicity. Whereas previously it was thought simply to be a disorder which was characterised by irregular ovulation, there is now evidence to show that it is a systemic metabolic disease determined genetically and inherited. As well as treating the presenting problem which, for gynaecologists is usually one of irregular menstruation and anovulation, or sometimes signs of hyperandrogenism, we believe that women should also be screened for their lipid status and insulin resistance. Advice on behaviour modification such as increased exercise and dietary adjustment should be recommended in addition to the treatment for ovulation induction. In the future, the use of insulin sensitising agents may become important in the treatment of PCOS.

Treatment of androgen excess in females: yesterday, today and tomorrow

Hirsutism, acne and androgenic alopecia represent, in females, some of the manifestations of the clinical spectrum of hyperandrogenism. These pictures represent not only cosmetic damage, but also a source of remarkable psychological distress. Often hirsutism is regarded as presumptive evidence of a lack of femininity. The major diagnostic concern is to exclude an ovarian or adrenal androgen-secreting tumor, a congenital hyperplasia or polycystic ovary disease. Ethnic background should be taken into account together with the progression of the symptoms. Following the etiology, surgery and exogenous glucocorticoids or inhibition of gonadotropin secretion have to be carefully chosen in the management of different kinds of hyperandrogenism. Several pharmacologic agents have recently shown the ability to block the androgen receptors at target organ sites, thus allowing a specific antiandrogenic treatment. In some cases cosmetic measures could be of great value. Obesity accompanied by hyperinsulinemia can represent the main cause of ovary androgen hypersecretion; therefore a reduced body weight and muscle activity represent the basis of any treatment. Some other drugs, such as long-acting analogs of somatostatin, could be considered among possible drugs for the future. The aim of this article is to provide an appraisal of what is presently known about the regulation of hair growth, the various causes of excessive androgen secretion and the current methods to solve, safely, this important feminine clinical problem.

Prolonged treatment of hirsutism with flutamide alone in patients affected by polycystic ovary syndrome

Hirsutism is a common symptom of women affected by polycystic ovary syndrome (PCOS). The effectiveness of the antiandrogen flutamide alone was studied in 25 patients affected by PCOS with severe hirsutism for a period of 24 months. Seventeen of these patients had not been treated before and eight had had previous but unsatisfactory therapy. Nineteen patients showed a normal body weight (BMI < 25 kg/m2) whereas six were obese (BMI > 35 kg/m2). A chemical and endocrinological evaluation and an assessment of the degree of hirsutism, assigned by Ferriman-Gallwey score (mean 22 +/- 3.038), was performed under baseline conditions. Patients started treatment with flutamide (Eulexin, Schering-Plough, Kenilworth, USA) at the dose of 500 mg daily. A chronobiological assessment of gonadotropin episodic secretion and of gonadotropin response to GnRH challenge (10 micrograms in bolus) was done before and on day 7 of flutamide administration. During treatment, our patients showed a marked and significant reduction of hirsutism starting from a score of 6 and reaching the maximum (9.6 + 2.1) at 24 months of therapy. No relevant hormonal changes or side-effects were observed during therapy. Our data demonstrate that hirsutism in PCOS can rapidly and markedly respond to treatment with flutamide alone without important side-effects even if administered for a long period.

The role of oral contraceptives in the treatment of hyperandrogenic disorders

The clinical manifestations associated with hyperandrogenism, such as hirsutism and acne, are disturbing to most patients. In addition to correcting androgen-related problems, concerns such as contraception or other metabolic problems (for example, lipid/lipoprotein abnormalities, diabetes, hypertension) associated with these disorders and the effects of unopposed estrogen on the endometrium also need to be considered. Oral contraceptives are a therapeutic modality that may address these multiple problems. The potential mechanisms of action by which oral contraceptives correct excess androgen states include gonadotropin suppression, reduction of circulating androgens, increased androgen binding, suppression of adrenal androgen secretion and inhibition of 5 alpha-reductase, and androgen receptor binding. In normal women, there is good evidence that these actions occur with the use of oral contraceptives. Among women with anovulatory hyperandrogenic states, such as polycystic ovary syndrome, the response to oral contraceptives in each of these areas is somewhat more variable. However, oral contraceptive preparations that are more estrogen dominant appear to produce many of the desired effects. From a clinical standpoint, 60-100% of women with hirsutism improve on oral contraceptives; acne shows improvement in a high percentage of women as well. The use of oral contraceptives also reduces the risk of endometrial hyperplasia that may be associated with anovulatory states. Finally, current low-dose preparations containing the newer progestins (for example, norgestimate and desogestrel) appear to be either neutral, or perhaps beneficial, with respect to their metabolic impact.

Unwanted pregnancies: understanding contraceptive use and benefits in adolescents and older women

The highest percentages of unintended pregnancies and the largest increases in births reported in the United States in recent years were in adolescents and in women more than 35 years of age. Increasing numbers of these women will require contraception to avoid unintended pregnancy. In adolescents the combined oral contraceptive agents protect fertility indirectly and exert favorable actions on menstrual dysfunction and certain hormone-related disorders such as acne and hirsutism. To avoid sexually transmitted disease, barrier protection should be used along with oral contraceptives until mutually monogamous, stable relationships are established. Healthy older women who are nonsmokers may also safely use currently available contraceptives. These agents have little impact on metabolic parameters linked to the development of cardiovascular disease. In addition to providing reliable contraception, oral contraceptives offer noncontraceptive benefits to older reproductive-age women, including control of abnormal bleeding and a reduction in the incidence of ovarian and endometrial cancers and other gynecologic pathology. Intrauterine devices and progestin implants are safe, effective, and underused in the United States. Progestin implants may have an additional role in patients for whom estrogen preparations are contraindicated. Counseling is very important before insertion because of the high rate of nuisance side effects. The contraception selection process must consider the efficacy and acceptability of the specific method to avoid the probability of unintended pregnancy and the risk of sexually transmitted diseases.

Contraceptive choices for women with endocrine complications

Previous confusion regarding the interference by oral contraceptives in measurements of endocrine function have been largely eliminated by the advent of improved, more sensitive assays. There are few if any contraindications to oral contraceptive use in patients with thyroid disease. Patients with prolactinoma can be treated with bromocriptine to restore fertility and prevent mineral loss. However, as a less expensive alternative, oral contraceptives can be prescribed to correct mineral loss, because there is no convincing evidence of an adverse effect on prolactinomas by the steroidal content of the pill. Oral contraceptives comprise a near ideal treatment modality for women with polycystic ovary disease because, among other effects, oral contraceptives reduce synthesis of androgen by inhibiting pituitary gonadotropin secretion.