Treatment continuation and satisfaction in women using combined oral contraception with nomegestrol acetate and oestradiol: a multicentre, prospective cohort study (BOLERO)

A review of the pharmacology, clinical outcomes, and real-world effectiveness, safety, and non-contraceptive effects of NOMAC/E2

Selecting an appropriate oral contraceptive can be challenging for healthcare professionals due to the abundance of marketed contraceptive options with different clinical and real-world effectiveness and safety profiles. Nomegestrol acetate + 17β-estradiol (NOMAC/E2) is a combined oral contraceptive (COC) that inhibits ovulation by suppressing ovarian function by a 17-hydroxy-progesterone derivative and an estrogen identical to that endogenously produced by the ovaries. This narrative review examines clinical and real-world studies of NOMAC/E2 based on a background literature search using PubMed and Google Scholar. The review outlines the pharmacology of NOMAC/E2, including its progestational activity, pharmacokinetics, and effects on carbohydrate metabolism, lipid metabolism, and coagulation parameters, and summarizes key clinical efficacy and safety data that led to the approval of NOMAC/E2 in Europe, Brazil, and Australia. To help elucidate how NOMAC/E2 clinical trial data translate into a real-world setting, this review describes the effectiveness and safety of NOMAC/E2 in prospective studies that include over 90,000 users (half of whom received NOMAC/E2), outlining its effects on risk of thrombosis, menstrual bleeding patterns, weight, mood, acne, bone health, and patient quality of life. Non-contraceptive benefits of NOMAC/E2 for women with endometriosis, dysmenorrhea, or pre-menstrual dysphoric disorder are also discussed. These data demonstrate that NOMAC/E2 has a long half-life and rapid absorption, is effective at preventing unwanted pregnancies, and exhibits a favorable safety profile in both clinical trials and real-world settings. Importantly, NOMAC/E2 is not associated with increased risk of venous thromboembolism, a major safety concern of healthcare professionals for women receiving hormonal contraceptives. This review highlights NOMAC/E2 as a differentiated option among COCs and could help inform oral contraceptive choice to ultimately improve patient management and outcomes in real-world settings.

Current and future hormonal contraception in Italy: results from an Italian consensus expert meeting

BACKGROUND

Hormonal pills are among the most widely contraceptive methods used by women, despite the possible onset of different adverse events. To minimize the risk of thrombosis-related adverse events, different formulations and doses have been investigated. Micronized estradiol (E2)/nomegestrol acetate (NOMAC) 24+4 is the first monophasic combined oral contraceptive pill containing natural E2, the same steroid produced by the granulosa cells of women ovaries. This combination presents an improved effect on hemostasis and metabolism compared to ethinyl-estradiol (EE)-based products and may be considered a good option to meet women's needs in a more physiological way. Despite the benefits of E2, its use is still not so common among combined oral contraceptives (COC).

METHODS

Seventy-seven Italian gynecologists were involved and asked to answer a survey to investigate some aspects related to contraception. The results of the survey were discussed within the same gynecologists and a panel of experts during eight macro-regional meetings.

RESULTS

The survey demonstrated that clinicians dedicate 40-60% of their time to contraception and confirmed the importance of the choice of the contraceptive pill, which is mostly prescribed for contraceptive purposes. Moreover, COC containing E2 is considered as the first choice in oral contraception and meets the features of an ideal pill.

CONCLUSIONS

Italian gynecologists reported that E2-based pill presents benefits related to safety, good tolerability, and low adverse events, in particular, related to a reduced thromboembolic risk. Research market data highlight that the use of these types of COC should expand with respect to traditional compounds containing EE.

Real world utilization of 91 day extended levonorgestrel-containing combined oral contraceptives in Europe: a multinational database study

OBJECTIVE

As part of the risk management plan in Europe, this study was conducted to characterize drug utilization patterns of Seasonique, a 91 day extended levonorgestrel-containing combined oral contraceptive (COC_LNG).

METHODS

A retrospective observational study was conducted in France, Italy and Belgium using electronic medical record databases obtained from general practitioners (GPs) in all participating countries and gynecologists in France from 2015 to 2018. The study population included women receiving ≥1 prescription of 91 day COC_LNG during the study period. Prescribing patterns of 91 day COC_LNG were examined including: (1) treatment duration; (2) indication; (3) use of combined oral contraceptive (COC) before 91 day COC_LNG initiation; and (4) switch from and to combined hormonal contraceptives (CHCs) or other contraceptives.

RESULTS

Totals of 235, 220, 207 and 659 women using 91 day COC_LNG were identified in French, Italian and Belgian GP, and French gynecologist databases, respectively. Across databases, 46-76% of women were prescribed a single 91 day COC_LNG prescription and median treatment duration ranged from 3 to 6 months. The most common indication was contraception (42-81%), followed by menstrual migraines (2-14%). Use of COC during the 6 months prior to 91 day COC_LNG initiation was 14% across GP databases, but was lower (8%) in the French gynecologist database. The frequency of switching from 91 day COC_LNG to CHCs or other contraceptives was generally low (5-12%), with the highest proportion being among patients of French gynecologists.

CONCLUSIONS

Findings indicate that 91 day COC_LNG was prescribed for relatively short durations and predominantly as indicated for contraception. Most results were comparable across all participating countries. KEY POINTSFindings from this drug utilization study in European databases across general practitioners and French gynecologists confirmed that 91 day extended levonorgestrel-containing combined oral contraceptive (COC_LNG) was prescribed for relatively short durations (median 3-6 months); predominantly for the intended indication of contraception.Combined oral contraceptive use during the 6 months prior to 91 day COC_LNG initiation, and switching from 91 day COC_LNG to combined hormonal contraceptives or other contraceptives, were generally low (14% or less).These findings were mostly consistent across participating countries.