Uterine fibroids: an update on current and emerging medical treatment options

Uterine fibroids are the most common gynecological disorder, classically requiring surgery when symptomatic. Although attempts at finding a nonsurgical cure date back to centuries, it is only around the middle of the last century that serious attempts at a medical treatment were carried out. Initially, both progestins and estrogen–progestin combinations have been utilized, although proof of their usefulness is lacking. A major step forward was achieved when peptide analogs of the GnRH were introduced, first those with superagonist properties and subsequently those acting as antagonists. Initially, the latter produced side effects preventing their routine utilization; eventually, this problem was overcome following the synthesis of cetrorelix. Because both types of analogs produce hypoestrogenism, their use is limited to a maximum of 6 months and, for this reason, today they are utilized as an adjuvant treatment before surgery with overall good results. Over the last decade, new, nonpeptidic, orally active GnRH-receptor blockers have also been synthesized. One of them, Elagolix, is in the early stages of testing in women with fibroids. Another fundamental development has been the utilization of the so-called selective progesterone receptor modulators, sometimes referred to as “antiprogestins”. The first such compound to be applied to the long-term treatment of fibroids was Mifepristone; today, this compound is mostly used outside of Western Countries, where the substance of choice is Ulipristal acetate. Large clinical trials have proven the effectiveness of Ulipristal in the long-term medical therapy of fibroids, although some caution must be exercised because of the rare occurrence of liver complications. All selective progesterone receptor modulators produce unique endometrial changes that are today considered benign, reversible, and without negative consequences. In conclusion, long-term medical treatment of fibroids seems possible today, especially in premenopausal women.

Pharmacodynamics of combined estrogen-progestin oral contraceptives 3. Inhibition of ovulation

INTRODUCTION

Following a historical overview, the ovulation-inhibiting effect of various orally administered estrogen-progestin combinations (combined oral contraceptives [COCs]) are examined for their components alone or in the various combined formulations. Special emphasis is given to products containing natural estrogens. Areas covered: Inhibition of ovulation with progestins alone; estrogens alone; various progestins in combination with ethinyl estradiol; various progestins in combination with natural estrogens (estradiol, estradiol valerate, and estetrol). Expert commentary: The original idea to achieve ovulation blockage through the administration of steroid hormones involved the use a progestogen (both progesterone and its synthetic homologous). The ability of a progestin to inhibit ovulation depends on the type of compound and on its dosage and a difference of more than 20-fold in activity exists between compounds utilized today in COCs. Initially, the estrogenic component was present only because it contaminated the first progestin utilized. It was soon found that an estrogen is necessary for proper cycle control. It was also found that the estrogen acts synergistically in inhibiting ovulation. For almost half a century, most COCs contained ethinyl estradiol. Today, also natural estrogens are being employed. Inhibition of ovulation was complete with all early high dose preparations. Decreasing dosage allowed some ovarian activity to occur, occasionally leading to a mature follicle. Even in this situation, defective corpus luteum formation assured contraceptive protection.

Menopause and hormone replacement therapy: the 2017 Recommendations of the Italian Menopause Society

Over the last decade, the risk benefits ratio of hormone replacement therapy (HRT) has been reevaluated mainly in tens of cardiovascular risk. Present Consensus Statement is largely inspired by the Global Consensus on Menopausal Hormone Therapy in 2013 and 2016 by leading global menopause societies (The American Society for Reproductive Medicine, The Asia Pacific Menopause Federation, The Endocrine Society, The European Menopause and Andropause Society, The International Menopause Society, The International Osteoporosis Foundation and The North American Menopause Society). The aim of these recommendations is to provide a simple and updated reference on postmenopausal HRT. The term HRT typically includes estrogen replacement therapy (ERT) and estrogen-progestogen therapy (EPT). EPT can be sequential, when progestogen is added to ERT for 10-14 days a month, or continuous combined when progestogen is administered continuously every day along with a fixed amount of estrogen, In the everyday language, HRT includes also tibolone and the tissue-selective estrogen complex.

An observational study of adherence to combined oral contraceptive regimens

OBJECTIVE

To analyze adherence to an oral contraceptive (OC) regimen and correlate results to participants' socio-demographic and behavioral characteristics.

METHODS

Women were prospectively enrolled and followed for 6 months. At enrollment, subjects were given a card for recording daily pill intake; its completion was checked at 6 months when women completed a self-administered questionnaire.

RESULTS

Out of 755 eligible subjects, 704 agreed to participate; 402 women completed 6 months of recording of use of an OC and properly filled the questionnaire. Good adherence was reported by 64% of participants; 20.9% missed one pill and 14.9% missed more than one pill. Mean number of missed pills per subject was 0.59 and mean number of pills delayed for less than 24 h was 1.18. Best adherence to a COC regimen was associated with evening time intake (p = 0.0019). No statistically significant associations of adherence with socio-demographic characteristics were found. Age was only marginally associated with having missed at least one pill.

CONCLUSION

In the present study, a lower number of missed pills were observed than previously reported, but the proportion of missed pills was similar. No association with specific subject characteristics that could serve as markers of increased risk of nonadherence was found.

Pharmacodynamics of combined estrogen-progestin oral contraceptives: 1. Effects on metabolism

INTRODUCTION

The risk-benefit profile of any pharmacologic agent must be evaluated against risks connected with the events to be avoided. This is especially true in the case of hormonal contraception, not intended to combat a disease. Over the six decades during which their use has progressively expanded, the risk-benefit profile of combined oral contraceptives (COC) has substantially changed, with new combinations, dosages and mode of administration appearing on the market. Area covered: In a series of articles, recent information on the complex issue of COC risks and benefits will be reviewed in the hope of providing an updated picture. The present article reviews metabolic changes occurring during use of modern combinations of estrogens (ethinyl estradiol, estradiol, estradiol valerate and estetrol) and new progestins (desogestrel, gestodene, dienogest, drospirenone, nomegestrol acetate), often compared to classic compounds, such as levonorgestrel. Three categories of metabolic effects in healthy women are detailed: on carbohydrates, lipid and bone mineral content. Expert commentary: Overall, the picture is reassuring: the new generations of progestins are basically devoid of androgenic, estrogenic or glucocorticoid related side-effects. This should result in an improved safety profile, although past history teaches us that that large comparative and surveillance studies are required before firm conclusions can be drawn. At any rate, available evidence indicates that metabolic effects of third and fourth generation progestins, especially when they are combined with natural estrogens, are minimal and, if used in healthy women, should not cause concern.

Mechanism of Action of Ulipristal Acetate for Emergency Contraception: A Systematic Review

Ulipristal acetate (UPA) is now recommended as first choice hormonal emergency contraception (EC), due to its higher efficacy and similar safety compared to Levonorgestrel - EC. Even though all trials demonstrated that the first mechanism of action is inhibition of ovulation, some authors still postulate that a post fertilization effect is also possible, raising the alert on medication and fostering the ethical debate. A Medline database search was performed in order to find recent articles related to UPA's effects on ovulation, on fallopian tube and on endometrium. We also analyzed the effects on sperm function and pregnancy. All studies conclude that UPA is effective in inhibition of ovulation even when administered shortly before LH peak. The effects on fallopian tube are unclear: according to some authors UPA inhibits ciliar beat through an agonistic effect on progesterone receptors, according to others it antagonizes the progesterone-induced ciliar beat decrease. Concerning the action on endometrium and on embryo implantation most of the studies concluded that low dose UPA used for EC has no significant effect on the decrease of endometrial thickness and on embryo's attachment, but these results are still matter of debate. Finally recent evidence suggests that UPA modulates human sperm functions while it has no effect on established pregnancy. To date the majority of the evidence concurs in excluding a post-fertilization effect of UPA, even though more studies are needed to clarify its mechanism of action.

Selective progesterone receptor modulators: an update

INTRODUCTION

Several selective progesterone receptor modulators (SPRMs) show promise in several areas of medicine and this work has been summarized by us in 2008.

AREAS COVERED

Since the publication of our reviews, several developments have taken place in the field of reproductive medicine. The first is emergency contraception (EC). Two SPRMs are clinically utilized today: mifepristone (MFP) and ulipristal acetate (UPA). MFP is available for EC in up to 120 h following unprotected intercourse. A dose of 10 mg is significantly more effective than levonorgestrel (LNG). In a metanalysis of the use of UPA versus LNG up to 72 h after unprotected intercourse, failure rates of 1.4 versus 2.2% were reported. The second is contraception. A daily dose of 2 mg MFP can block ovulation and several MFP regimens are being tested, including a vaginal ring releasing MFP. The third is the preoperative administration in women harboring leiomyomas, where clinical testing of several SPRM has shown that they can decrease uterine leiomyomas' size and substantially reduce uterine bleeding. SPRM can induce unusual, specific endometrial appearances. Many believe that these changes should not cause concern, but the issue remains controversial.

EXPERT OPINION

SPRMs are very effective in EC and for the preoperative treatment of uterine leiomyomas.

Second-trimester induced abortions in two tertiary centres in Rome

OBJECTIVE

Demand for second-trimester induced abortions (STIAs) increases in Italy. For these procedures, prostaglandins alone were used until 2010, when mifepristone became available. The present study compares the two modalities, and investigates the reasons for STIAs.

METHODS

The records of all such procedures performed at the Department of Gynaecology, Obstetrics and Urology of the 'Sapienza' University (Rome), between January 2004 and December 2012, and of all those done at the 'San Filippo' Hospital (Rome), between January 2010 and December 2012, were analysed. Data gathered included women's age, obstetric history, reasons for requesting the STIA, gestational age, mode of intervention, and complications if any.

RESULTS

During the study period, 353 women requested a STIA. Karyotype or genetic anomalies were the reason for the request in 187 cases (53%), while structural anomalies, both single and multiple, were given as the reason in 158 (45%). In most cases, these anomalies were assessed by ultrasound scan.

CONCLUSION

Few studies have investigated reasons for requesting STIAs. Of all chromosome abnormalities diagnosed in this study, trisomy 21 was the most common (59%) and it was the most frequent reason for requesting pregnancy termination.

Unmet needs and knowledge of postpartum contraception in Italian women

PURPOSE OF INVESTIGATION

Clinic visits during pregnancy and puerperium provide a unique opportunity to counsel women on contraception practices. With the aim of evaluating postpartum contraceptive attitudes among urban women attending an antenatal care center and delivering in the same facility, a structured questionnaire was administered to assess desired and received information on contraception in the postpartum period.

RESULTS

A total of 436 consecutive interviews were collected during the study period. Pregnancy was unplanned in 39% of the women interviewed. Overall, 269 women (61.7%) had decided to use a method of family planning during postpartum. Among the 112 women who stated they did not want to use a method during postpartum, almost 50% stated that they "did not think they needed it", due to a perceived lack of real risk. Of the 436 women interviewed, only 5.5 % women acknowledged that they had received information on contraceptive use.

CONCLUSION

The present study indicates a need for ante- and postpartum counseling of women even in urban areas of Italy.

Mirena, an Italian experience

AIM

The aim of this review was to evaluate contraceptive efficacy, compliance, effect on menstrual cycle of a levonorgestrel-releasing device (Mirena®) in an Italian setting.

METHODS

During the 48 months of recruitment, 128 women accepted the insertion of the LNG-IUS satisfying all inclusion criteria; 71.6% of the women completing five years of use had heavy menstrual blood loss. General and pelvic examination, including an ultrasound scan were performed at recruitment and repeated at 1, 3, 6, months postinsertion. Each subject was given a menstrual diary to report both menstrual patterns and side effects.

RESULTS

Over the 7 308 woman/months of observation, no pregnancy occurred. Menstrual blood flow decreased in all patients, both in terms of quantity and duration. In the vast majority of cases (93.7%), spotting disappeared within six months; within the first six cycles postinsertion, amenorrhoea occurred in 29.5% of all women. In five subjects the device was removed before the planned five years of observation: two women desired a pregnancy and three, in spite of a pre-existing condition of menorrhagia, requested removal within the first nine months, because they could not tolerate amenorrhoea. Three expulsions and one dislocation of the device were also detected, all within the first eight months.

CONCLUSION

Although in Italy intrauterine contraception is poorly accepted, once started on Mirena® women found that the device represents a safe and effective contraceptive modality, particularly indicated in the presence of heavy or prolonged bleeding. The only important side effect reported was breast tenderness; in addition the transient appearance of ovarian cystic images was observed.