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de Souza IS, Laporta GZ, Zangirolami-Raimundo J, Sorpreso ICE, Silva dos Santos HCL, Soares Júnior JM, Raimundo RD. Association between the use of oral contraceptives and the occurrence of systemic hypertension: A systematic review with statistical comparison between randomized clinical trial interventions. Eur J Obstet Gynecol Reprod Biol X 2024; 22:100307. [PMID: 38736524 PMCID: PMC11088268 DOI: 10.1016/j.eurox.2024.100307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/04/2024] [Accepted: 04/16/2024] [Indexed: 05/14/2024] Open
Abstract
Introduction In the WHO eligibility criteria, there is agreement that hypertensive women taking Oral Contraceptive Hormonal Combined (OCHC) may be at increased risk of cardiovascular disease. The risk-to-benefit ratio hinges on the severity of the condition. While a mild increase in blood pressure is a common occurrence in consumers of OCHC, the potential for developing high blood pressure exists during oral contraceptive use. Consequently, there is a possibility of increased cardiovascular risk, with limited available data on this issue. Objective To evaluate the potential effects of OCHC on blood pressure through a systematic review with statistical analysis of existing randomized controlled trials. Method This systematic review with statistical comparison adheres to the recommendations outlined in the PRISMA (Principal Reporting Items for Systematic Reviews and Meta-analyses) guidelines. The analysis strategy involves comparing the mean difference in blood pressure change according to the type of treatment, in addition to the calculation of clinically relevant outcomes (CRO). Results Our findings suggest a clinically relevant outcome related to the increase in blood pressure in users of ethinyl estradiol combined with gestodene in a cyclic regimen over 6 months. Conversely, a decrease in blood pressure was observed among users of ethinyl estradiol combined with chlormadinone over 24 months of usage. Conclusion While our study found minor variations in blood pressure across varying forms of oral contraceptives, these differences are not significant enough to warrant specific clinical recommendations. However, the results suggest that individuals with hypertension should exercise caution with ethinyl estradiol, particularly when administered cyclically alongside gestodene, due to the potential risk of increased blood pressure. Additionally, the use of oral contraceptives containing ethinyl estradiol paired with chlormadinone acetate or ethinyl estradiol combined with drospirenone may be more suitable for individuals at a high risk of developing hypertension.
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Affiliation(s)
- Ingrid Soares de Souza
- Laboratório de Delineamento de Estudos e Escrita Científica, Centro Universitário FMABC, Santo André, São Paulo, Brazil
| | - Gabriel Zorello Laporta
- Laboratório de Delineamento de Estudos e Escrita Científica, Centro Universitário FMABC, Santo André, São Paulo, Brazil
| | - Juliana Zangirolami-Raimundo
- Laboratório de Delineamento de Estudos e Escrita Científica, Centro Universitário FMABC, Santo André, São Paulo, Brazil
- Laboratório de investigação médica em ginecologia estrutural e molecular, Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, São Pauloṭ, Brazil
| | - Isabel Cristina Esposito Sorpreso
- Laboratório de investigação médica em ginecologia estrutural e molecular, Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, São Pauloṭ, Brazil
| | | | - José Maria Soares Júnior
- Laboratório de investigação médica em ginecologia estrutural e molecular, Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, São Pauloṭ, Brazil
| | - Rodrigo Daminello Raimundo
- Laboratório de Delineamento de Estudos e Escrita Científica, Centro Universitário FMABC, Santo André, São Paulo, Brazil
- Laboratório de investigação médica em ginecologia estrutural e molecular, Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, São Pauloṭ, Brazil
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Slynd: does a drospirenone progestogen-only pill offer an advantage? Drug Ther Bull 2024; 62:55-59. [PMID: 38527766 DOI: 10.1136/dtb.2023.000065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
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Windisch S, Frishman WH. Thrombotic and Vascular Complications of Oral Contraceptives. Cardiol Rev 2024:00045415-990000000-00196. [PMID: 38230942 DOI: 10.1097/crd.0000000000000643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
The oral contraceptive pill is the most commonly used form of reversible contraception, as it has significantly grown in popularity in recent years. The 2 types of oral contraceptive pills are combination oral contraceptives, which contain estrogen and progesterone, and progestin-only pills. Both have failure rates of approximately 7.2-9% with typical use and are safe for most patients. However, several thrombotic and vascular complications have been found to be associated with the usage of oral contraceptive pills, most notably being an increase in blood pressure and thrombosis. Although these complications do not typically affect young, healthy females, they merit concern for patients with a history of hypertension or thrombosis or patients with preexisting risk factors for these conditions. Overall, progestin-only pills are the safer option regarding these complications. Additionally, a complete summary of the medical eligibility criteria for contraceptive use has been created and is regularly updated by the Centers for Disease Control and Prevention. This chart summarizes the recommendations for contraception use by patients with a variety of preexisting conditions or risk factors.
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Affiliation(s)
- Stephen Windisch
- From the Departments of Medicine and Cardiology, New York Medical College/Westchester Medical Center, Valhalla, NY
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Creinin MD, Angulo A, Colli E, Archer DF. The efficacy, safety, and tolerability of an estrogen-free oral contraceptive drospirenone 4 mg (24/4-day regimen) in obese users. Contraception 2023; 128:110136. [PMID: 37544572 DOI: 10.1016/j.contraception.2023.110136] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/25/2023] [Accepted: 08/02/2023] [Indexed: 08/08/2023]
Abstract
OBJECTIVES This study aimed to compare contraceptive efficacy and safety of drospirenone 4 mg in a 24/4-day regimen in nonobese and obese users and describe pharmacokinetics according to bodyweight. STUDY DESIGN We analyzed data from three drospirenone 4 mg trials (2 European and 1 United States) to report outcomes in nonobese (body mass index <30 kg/m2) and obese (body mass index ≥30 kg/m2) users. We used data from the US trial to calculate the Pearl Index (pregnancies per 100 woman-years) in nonbreastfeeding participants aged ≤35 years at enrollment for confirmed pregnancies. We assessed safety outcomes from all trials based on reported treatment-emergent adverse events. We evaluated pharmacokinetics by bodyweight in the US trial. RESULTS The three trials combined comprised 2152 nonobese and 425 obese participants, including 590 nonobese and 325 obese participants in the US trial. Eight nonobese and four obese participants had confirmed pregnancies in the US trial, resulting in Pearl Indices of 3.0 (95% CI: 1.3-5.8) and 2.9 (95% CI: 0.8-7.3), respectively. Two-hundred forty-four (11.3%) nonobese and 39 (9.2%) obese participants discontinued due to a treatment-emergent adverse event. The pharmacokinetic analysis included 814 participants with a median weight of 73 (interquartile range 61-89) kg and median plasma drospirenone exposure (AUC0-24ss) of 661.3 (interquartile range 522-828) ng∙h/mL. Changing bodyweight from the median to the fifth percentile (51 kg) or 95th percentile (118 kg) changed drospirenone exposure (AUC0-24,ss) by 22.2% and -23.6%, respectively. CONCLUSIONS Drospirenone 4 mg demonstrated similar contraceptive efficacy for both nonobese and obese users despite a difference in exposure based on bodyweight. IMPLICATIONS Our limited comparison between obese and nonobese users of drospirenone-only oral contraception demonstrated no evidence that efficacy or discontinuation for adverse events differs between groups. Serum drospirenone levels vary by bodyweight and may correlate with bleeding outcomes.
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Affiliation(s)
- Mitchell D Creinin
- Department of Obstetrics and Gynecology, University of California, Davis, Sacramento, CA, United States
| | | | | | - David F Archer
- Clinical Research Center, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, United States
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Foidart JM, Gemzell-Danielsson K, Kubba A, Douxfils J, Creinin MD, Gaspard U. The benefits of estetrol addition to drospirenone for contraception. AJOG GLOBAL REPORTS 2023; 3:100266. [PMID: 37854030 PMCID: PMC10580049 DOI: 10.1016/j.xagr.2023.100266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023] Open
Abstract
Ethinylestradiol and drospirenone combined oral contraceptive formulations have been marketed for >20 years. Drospirenone has antimineralocorticoid and anti-androgenic effects that may offer several health benefits. Recently, 2 new drospirenone-containing oral contraceptives entered the market, 1 as a progestin-only pill containing 4 mg drospirenone and the other as a combined oral contraceptive containing 15 mg estetrol and 3 mg drospirenone. Estetrol has a unique differential effect on nuclear and membrane estrogen α-receptors when compared with other estrogens, leading to low impact on the liver, breast, and hemostasis parameters and a beneficial effect on the endometrium, vagina, cardiovascular system, bone, and brain. Phase 3 clinical studies demonstrated that the Pearl Index (pregnancies per 100-woman-years) for drospirenone alone is 4.0 in the United States and 0.93 in the European Union and for the estetrol-drospirenone combination it is 2.65 and 0.44, respectively. Drospirenone alone demonstrates high rates of unscheduled bleeding and low rates of scheduled bleeding, whereas the estetrol-drospirenone combination demonstrates a predictable and regular bleeding profile for most users with a high stable rate of scheduled bleeding and a low rate of unscheduled bleeding, reported primarily as spotting only. The adverse event profiles and discontinuation rates owing to adverse events are comparable, and no clinically significant effects were observed on metabolic parameters with either product. Hemostatic assays for drospirenone do not fully evaluate all parameters although the testing that is available suggests negligible effects, whereas validated hemostatic assays demonstrate that the estetrol-drospirenone combination has limited impact on hemostasis. The introduction of 4 mg drospirenone and 15 mg estetrol with 3 mg drospirenone are valuable additions to the contraceptive market. Adding estetrol to 3 mg drospirenone provides advantages of contraceptive efficacy and a regular, predictable bleeding profile with minimal impact on hemostasis parameters.
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Affiliation(s)
- Jean Michel Foidart
- Department of Obstetrics and Gynecology, University of Liège, Liège, Belgium (Prof Foidart and Prof Gaspard)
- Estetra SRL, an affiliate company of Mithra Pharmaceuticals, Liège, Belgium (Prof Foidart)
| | - Kristina Gemzell-Danielsson
- Department of Women's and Children's Health, Karolinska Institute, and Karolinska University Hospital, Stockholm, Sweden (Prof Gemzell-Danielsson)
| | - Ali Kubba
- Department of Gynecological Oncology, Guy's Hospital, London, United Kingdom (Prof Kubba)
| | - Jonathan Douxfils
- Department of Pharmacy, Namur Thrombosis and Hemostasis Center, Namur Research Institute for Life Sciences, University of Namur, Namur, Belgium (Prof Douxfils)
- Qualiblood s.a, Namur, Belgium (Prof Douxfils)
| | - Mitchell D. Creinin
- Department of Obstetrics and Gynecology, University of California, Davis, Sacramento, CA (Prof Creinin)
| | - Ulysse Gaspard
- Department of Obstetrics and Gynecology, University of Liège, Liège, Belgium (Prof Foidart and Prof Gaspard)
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Cameron NA, Blyler CA, Bello NA. Oral Contraceptive Pills and Hypertension: A Review of Current Evidence and Recommendations. Hypertension 2023; 80:924-935. [PMID: 37075131 PMCID: PMC10852998 DOI: 10.1161/hypertensionaha.122.20018] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Oral contraceptive pills (OCPs) have been used as effective and popular forms of contraception since the middle of the last century. By 2019, over 150 million reproductive-aged individuals were using OCPs to prevent unintended pregnancies worldwide. Safety concerns regarding the effects of OCPs on blood pressure were reported soon after these pills gained approval. Although OCP doses were subsequently reduced, epidemiologic evidence continued to support a smaller, but significant association between OCPs and hypertension. Given the rising prevalence of hypertension, as well as the adverse effects of cumulative exposure to blood pressure elevations on cardiovascular disease risk, understanding the nature of the association between OCPs and hypertension is important for clinicians and patients to assess the risks and benefits of use, and make individualized decisions regarding contraception. Therefore, this review summarizes the current and historical evidence describing the association between OCP use and blood pressure elevations. Specifically, it identifies the pathophysiologic mechanisms linking OCPs to hypertension risk, describes the magnitude of the association between OCPs and blood pressure elevations, and distinguishes the effects of various OCP types on blood pressure. Finally, it describes current recommendations regarding hypertension and OCP use, as well as identifies strategies, such as over-the-counter OCP prescribing, to safely and equitably improve access to oral contraception.
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Affiliation(s)
- Natalie A Cameron
- Northwestern University Feinberg School of Medicine, Department of Medicine, Division of General Internal Medicine, Chicago, Illinois
| | - Ciantel A. Blyler
- Department of Cardiology Smidt Heart Institute Cedars-Sinai Medical Center, Los Angeles, California
| | - Natalie A Bello
- Department of Cardiology Smidt Heart Institute Cedars-Sinai Medical Center, Los Angeles, California
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Drospirenone 4 mg in a 24 + 4 regimen in women with contraindications to oestrogen use for contraception: bleeding patterns according to previous menstrual characteristics. Arch Gynecol Obstet 2023; 307:873-879. [PMID: 36409333 DOI: 10.1007/s00404-022-06853-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/06/2022] [Indexed: 11/22/2022]
Abstract
PURPOSE A new POP consisting of 4 mg drospirenone (DRSP) for 24 days with a 4-day hormone-free interval was developed to improve bleeding predictability during POP use. The aim of this study was to evaluate the effect on bleeding patterns during use of this oral contraceptive (OC) in comparison with previous menstrual cycles before the start of OC use. METHODS This is a pilot, prospective trial. A diary was used to collect information about daily bleeding and pelvic pain before and during treatment. During OC use, women were categorised as having (1) unscheduled bleeding or spotting days (UB), (2) scheduled bleeding or spotting days (SB) and (3) absence of bleeding/spotting (AB). SF-36 and FSFI questionnaires were used to quantify health-related quality of life and the quality of sexual life in sexually active participants. RESULTS Eighteen out of twenty-five (72%) women completed the entire follow-up. Women with UB (44.4%) were older at inclusion (p < 0.001) and had higher BMIs (p = 0.02) than those with AB (22.2%) or SB (33.4%). Women recorded a significant reduction of menstrual flow intensity during OC use (p < 0.0001). Those with UB also experienced a significant reduction of menstrual pain intensity (p = 0.006). Women with SB during OC use had a longer baseline cycle than those who reported UB during OC use (p = 0.008). Satisfaction with this OC was very high (8.4 ± 2.2 points) with no modification in SF-36 and FSFI values. CONCLUSION A DRSP-only pill is a good OC option for women with contraindications to oestrogen use. Features of the menstrual cycle before the start of OC use may be used to predict associated changes in bleeding patterns.
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Regidor PA, Mueller A, Mayr M. Pharmacological and metabolic effects of drospirenone as a progestin-only pill compared to combined formulations with estrogen. WOMEN'S HEALTH (LONDON, ENGLAND) 2023; 19:17455057221147388. [PMID: 36744531 PMCID: PMC9905034 DOI: 10.1177/17455057221147388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The spironolactone derivative drospirenone is combined with ethinylestradiol or estetrol in combined oral contraceptives. Formulations with 17-β-estradiol are used to treat climacteric symptoms. A drospirenone-only formulation has been introduced for contraception. Here, the pharmacological properties of drospirenone, the impact of the different formulations on metabolic and laboratory parameters, and the resulting clinical implications are reviewed. Ethinylestradiol, an inhibitor of CYP metabolic enzymes, changes the pharmacokinetics of drospirenone, leading to a higher drospirenone exposure with ethinylestradiol/drospirenone compared to the drospirenone-only preparation. In addition, several metabolic alterations have been described. The impact of estetrol is less pronounced, and for 17-β-estradiol/drospirenone and drospirenone-only, decreased triglyceride and cholesterol levels were observed. Ethinylestradiol induces various pro-coagulatory factors, leading to hypercoagulability. The effect is significantly reduced with estetrol, and no influence was observed with the drospirenone-only preparation. The anti-mineralocorticoid activity of drospirenone seems to positively counteract the renin-angiotensin-aldosterone-system-activating action of ethinylestradiol. There is no influence on blood pressure with ethinylestradiol/drospirenone and estetrol/drospirenone formulations, while in clinical trials, a reduction has been observed with 17-β-estradiol/drospirenone and drospirenone-only. Anti-aldosterone activity via non-renal mineralocorticoid receptors is associated with cardiovascular health, while interactions with parathyroid hormone signaling impact bone structure and vascular calcification. Though the clinical relevance is unclear for drospirenone, data in this context are reviewed. To sum up, the advantages of drospirenone in hormonal contraception and treatment of menopausal symptoms have been demonstrated for all the formulations described here. Combination with estrogen confers benefits and risks, which must be considered.
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Affiliation(s)
- Pedro-Antonio Regidor
- Pedro-Antonio Regidor, Exeltis Germany GmbH, Adalperostraße 84, 85737 Ismaning, Germany.
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Kubba A, Gemzell-Danielsson K, Palacios S, Wiegratz I, Grandi G, Colli E, Regidor PA. The drospirenone (DRSP)-only pill: clinical implications in the daily use. EUR J CONTRACEP REPR 2023; 28:36-43. [PMID: 36724207 DOI: 10.1080/13625187.2022.2164186] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Progestins used in contraception are either components of combined hormonal contraceptives or are used as a single active ingredient. Progestins are highly effective in long-term contraception and have a very good safety profile with very few contraindications. METHODS An oestrogen-free ovulation inhibitor POP has been authorised in the USA and the EU. It contains 4 mg of drospirenone (DRSP). The hormone administration regimen of 24 days followed by a 4-day hormone-free period was chosen to improve bleeding control and to maintain oestradiol concentrations at early follicular- phase levels, preventing oestrogen deficiency. RESULTS Clinical trials have demonstrated high contraceptive effectiveness, a very low risk of cardiovascular risk events and a favourable bleeding pattern. Due to the long half-life of DRSP (30-34 h), the effectiveness is maintained even in case of a forgotten pill on a single occasion. Studies involving deliberate 4 days in one cycle 24-hour delays in taking a pill have demonstrated that ovulation inhibition is maintained if a single pill is missed. CONCLUSIONS This review article will describe the clinical impact in the daily use of the 4 mg DRSP only pill and the resulting data on the effectiveness and safety of this hormonal contraceptive.
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Affiliation(s)
- Ali Kubba
- Gynaecology, Guy's Hospital, London, UK
| | - Kristina Gemzell-Danielsson
- Department of Women´s and Children´s Health, Karolinska Institutet and WHO-centre, Karolinska University Hospital, Stockholm, Sweden
| | | | - Inka Wiegratz
- Frankfurt Hormone and Fertility Center & Goethe University of Frankfurt, Frankfurt, Germany
| | - Giovanni Grandi
- Department of Medical and Surgical Sciences for Mother, Child and Adult, Obstetrics and Gynecology Unit, university of Modena and Reggio Emilia; Azienda Ospedaliero Universitaria Policlinico, Modena, Italy
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Latham-Cork HC, Nicol C. Progestogen only pills commentary. BMJ SEXUAL & REPRODUCTIVE HEALTH 2023; 49:3-6. [PMID: 36198480 DOI: 10.1136/bmjsrh-2022-201666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Affiliation(s)
- Harriett Charlotte Latham-Cork
- Obstetrics and Gynaecology, University of Nottingham, Nottingham, UK
- Integrated Sexual Health Services, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Claire Nicol
- Lothian SRH Services, Chalmers Sexual Health Centre, Edinburgh, UK
- Deputy Director, Clinical Effectiveness Unit, Faculty of Sexual and Reprodctive Healthcare, Edinburgh, UK
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McNamee K, Edelman A, Li RHW, Kaur S, Bateson D. Best Practice Contraception Care for Women with Obesity: A Review of Current Evidence. Semin Reprod Med 2022; 40:246-257. [PMID: 36746158 DOI: 10.1055/s-0042-1760214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The prevalence of obesity among females of reproductive age is increasing globally. Access to the complete range of appropriate contraceptive options is essential for upholding the reproductive rights of this population group. People with obesity can experience stigma and discrimination when seeking healthcare, and despite limited evidence for provider bias in the context of contraception, awareness for its potential at an individual provider and health systems level is essential. While use of some hormonal contraceptives may be restricted due to increased health risks in people with obesity, some methods provide noncontraceptive benefits including a reduced risk of endometrial cancer and a reduction in heavy menstrual bleeding which are more prevalent among individuals with obesity. In addition to examining systems-based approaches which facilitate the provision of inclusive contraceptive care, including long-acting reversible contraceptives which require procedural considerations, this article reviews current evidence on method-specific advantages and disadvantages for people with obesity to guide practice and policy.
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Affiliation(s)
| | - Alison Edelman
- Department of Obstetrics and Gynecology, School of Medicine, Oregon Health and Science University, Portland, Oregon
| | - Raymond Hang Wun Li
- Department of Obstetrics and Gynaecology, Queen Mary Hospital, University of Hong Kong, Hong Kong, Hong Kong
| | - Simranvir Kaur
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Palo Alto, California
| | - Deborah Bateson
- Faculty of Medicine and Health, Daffodil Centre, University of Sydney, Sydney, Australia
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Regidor PA, Richter WH, Koytchev R, Kirkov V, Colli E. Evaluation of the food effect on a drospirenone only contraceptive containing 4 mg administered with and without high-fat breakfast in a randomised trial. BMC Womens Health 2022; 22:381. [PMID: 36123682 PMCID: PMC9484173 DOI: 10.1186/s12905-022-01960-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 09/02/2022] [Indexed: 12/04/2022] Open
Abstract
Background The objective of the present trial was to assess the difference in pharmacokinetics (PK) of an oral test preparation containing 4 mg drospirenone (DRSP) under fasting conditions compared to PK upon food intake after single dose administration.
Methods Open label, single centre, two-treatment, two-sequence, crossover study in 24 healthy female volunteers, with duration of 1 day per sequence and with a real wash-out period of 14 days to investigate the relative bioavailability of DRSP with both forms of administration. The 90% confidence intervals (CI) were calculated for the intra-individual ratio (test with food vs. without food) of the PK endpoints Area under the curve; 0–72 h [AUC(0-72 h)] and maximal plasma concentration [Cmax] of DRSP.
Results The 90% CI calculated by analysis of variance using logistic transformation (ANOVA-log) for the endpoint, intra-individual ratio (Test ‘A’ = with food intake) vs. Test ‘B’ = without food intake) of AUC(0-72 h) of drospirenone was between 104.72 and 111.36%. The 90% CI calculated by means of ANOVA- log for the endpoint intra-individual ratio (Test ‘A’ vs. Test ‘B’) of Cmax of DRSP was between 118.58 and 141.10%. The mean relative bioavailability of the test with food ‘A’ compared to the Test without food ‘B’ after single dose administration based on the endpoints AUC(0-72 h) was 107.99%; for the endpoint Cmax it was 129.35%. Conclusions The rate of absorption, based on the endpoint Cmax of DRSP was increased by about 30% under fed conditions. With respect to consumer habits, this may represent a relevant benefit for contraceptive safety, as the time span between food consumption and pill intake does not play a role. Implications Our results suggest that the food intake has no impact on the absorption of 4 mg DRSP in the management of contraception. This increases the contraceptive efficacy as no interference with food is expected when consuming the oral formulation under real life conditions. Trail registration: Trial registration number: EudraCT-No: 2012–004,309-28.
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Bleeding Patterns of Oral Contraceptives with a Cyclic Dosing Regimen: An Overview. J Clin Med 2022; 11:jcm11154634. [PMID: 35956249 PMCID: PMC9369460 DOI: 10.3390/jcm11154634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/29/2022] [Accepted: 07/30/2022] [Indexed: 11/17/2022] Open
Abstract
Bleeding irregularities are one of the major reasons for discontinuation of oral contraceptives (OCs), and therefore clinicians need to set expectations during consultations. In this review we provide an overview of bleeding data of recently marketed cyclic combined OCs (COCs) and one progestin-only pill (POP). We evaluated data from phase 3 trials (≥12 months) used to gain regulatory approval. Overall, each type of OC has its own specific bleeding pattern. These patterns however were assessed by using different bleeding definitions, which hampers comparisons between products. In COCs, the estrogen balances the effects of the progestin on the endometrium, resulting in a regular bleeding pattern. However, this balance seems lost if a too low dose of ethinylestradiol (EE) (e.g., 10 µg in EE/norethindrone acetate 1 mg) is used in an attempt to lower the risk of venous thromboembolism. Replacement of EE by 17β-estradiol (E2) or E2 valerate could lead to suboptimal bleeding profile due to destabilization of the endometrium. Replacement of EE with estetrol (E4) 15 mg in the combination with drospirenone (DRSP) 3 mg is associated with a predictable and regular scheduled bleeding profile, while the POP containing DRSP 4 mg in a 24/4 regimen is associated with a higher rate of unscheduled and absence of scheduled bleeding than combined products.
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FSRH Guideline (August 2022) Progestogen-only Pills. BMJ SEXUAL & REPRODUCTIVE HEALTH 2022; 48:1-75. [PMID: 36316023 DOI: 10.1136/bmjsrh-2022-pop] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
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Cea García J. Critical commentary on 'Oestrogen-free oral contraception with a 4 mg drospirenone-only pill: new data and a review of the literature'. EUR J CONTRACEP REPR 2022; 27:269-270. [PMID: 35442142 DOI: 10.1080/13625187.2022.2057470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Jorge Cea García
- Clinical Management Unit for Obstetrics and Gynecology, University Hospital Virgen Macarena, Seville, Spain
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Prämenstruelles Syndrom und prämenstruelle dysphorische Störung. GYNAKOLOGISCHE ENDOKRINOLOGIE 2022. [DOI: 10.1007/s10304-022-00451-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Baker CC, Chen MJ. New Contraception Update — Annovera, Phexxi, Slynd, and Twirla. CURRENT OBSTETRICS AND GYNECOLOGY REPORTS 2022; 11:21-27. [PMID: 35795653 PMCID: PMC9255890 DOI: 10.1007/s13669-021-00321-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Abstract
Purpose of Review
In this review, we discuss the efficacy, safety, and benefits of four new contraceptive products available in the USA, specifically Annovera, Phexxi, Slynd, and Twirla.
Recent Findings
Annovera is a vaginal ring releasing ethinyl estradiol and segesterone acetate that can be used for up to one year (13 cycles), offering patients an effective, user-controlled option that may improve contraceptive access for those in low-resource settings or those with barriers to retrieving monthly prescriptions; however, given limited efficacy and safety data in people with body mass index (BMI) > 29 kg/m2, clinicians may consider whether Annovera is an appropriate contraceptive method for obese patients if there are other acceptable alternatives. Phexxi prescription-only vaginal gel is a user-controlled, non-hormonal, on-demand contraceptive method that represents a novel addition to the market with its additional uses as a personal lubricant and as a potential microbicide for urogenital infection prevention. Slynd, a drospirenone-only pill, provides more flexibility for delayed or missed pills while maintaining efficacy and a more favorable bleeding profile compared with previously available progestin-only pills. Lastly, Twirla is a transdermal patch releasing ethinyl estradiol and levonorgestrel that offers users an additional option for a user-controlled, combined hormonal contraceptive method without daily dosing; however, prescription is limited to patients with BMI < 30 kg/m2 due to decreased efficacy and VTE events in people with obesity.
Summary
The addition of these products expands the available options for pregnancy prevention to address unmet contraceptive needs.
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Affiliation(s)
- Courtney C. Baker
- Department of Obstetrics and Gynecology, University of California, Davis, 4860 Y Street, Suite 2500, Sacramento, CA 95817, USA
| | - Melissa J. Chen
- Department of Obstetrics and Gynecology, University of California, Davis, 4860 Y Street, Suite 2500, Sacramento, CA 95817, USA
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Singh P, Covassin N, Marlatt K, Gadde KM, Heymsfield SB. Obesity, Body Composition, and Sex Hormones: Implications for Cardiovascular Risk. Compr Physiol 2021; 12:2949-2993. [PMID: 34964120 PMCID: PMC10068688 DOI: 10.1002/cphy.c210014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Cardiovascular disease (CVD) continues to be the leading cause of death in adults, highlighting the need to develop novel strategies to mitigate cardiovascular risk. The advancing obesity epidemic is now threatening the gains in CVD risk reduction brought about by contemporary pharmaceutical and surgical interventions. There are sex differences in the development and outcomes of CVD; premenopausal women have significantly lower CVD risk than men of the same age, but women lose this advantage as they transition to menopause, an observation suggesting potential role of sex hormones in determining CVD risk. Clear differences in obesity and regional fat distribution among men and women also exist. While men have relatively high fat in the abdominal area, women tend to distribute a larger proportion of their fat in the lower body. Considering that regional body fat distribution is an important CVD risk factor, differences in how men and women store their body fat may partly contribute to sex-based alterations in CVD risk as well. This article presents findings related to the role of obesity and sex hormones in determining CVD risk. Evidence for the role of sex hormones in determining body composition in men and women is also presented. Lastly, the clinical potential for using sex hormones to alter body composition and reduce CVD risk is outlined. © 2022 American Physiological Society. Compr Physiol 12:1-45, 2022.
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Affiliation(s)
- Prachi Singh
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
| | | | - Kara Marlatt
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
| | - Kishore M Gadde
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
| | - Steven B Heymsfield
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
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Regidor PA, Colli E, Palacios S. Overall and bleeding-related discontinuation rates of a new oral contraceptive containing 4 mg drospirenone only in a 24/4 regimen and comparison to 0.075 mg desogestrel. Gynecol Endocrinol 2021; 37:1121-1127. [PMID: 34402728 DOI: 10.1080/09513590.2021.1963432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVES Progestin-only pills do not increase the risk of venous thromboembolism, stroke, and myocardial infarction but are associated with poor cycle control. A novel estrogen-free pill containing only drospirenone (DRSP) to improve bleeding patterns and tolerability and reduce discontinuation rates has been introduced into the market. The present study aims to describe the improvement in the acceptability of this DRSP-only pill, e.g. regarding the bleeding profile and the reduction in discontinuation rates due to unacceptable bleeding compared to desogestrel (DSG). STUDY DESIGN Double-blind, double-dummy prospective phase III study in healthy women aged 18-45 years evaluating a total of 858 women with 6691 DRSP and 332 women with 2487 DSG treatment cycles. RESULTS Overall, 82 (9.6%) women in the DRSP group and 44 (13.3%) women in the DSG group experienced treatment-emergent adverse events (TEAEs) leading to premature termination of the trial meaning that 32% more women in the DRSP group finished the trial in comparison to the DSG group (based on the AUC of Kaplan-Meier's curves). Discontinuation rates due to abnormal bleeding were 3.7% for DRSP and 7.3% for DSG users. This is a 55.7% lower discontinuation rate in the DRSP group compared to the DSG group. CONCLUSIONS This report describes the improvement in acceptability and bleeding profile of women using the new DRSP-only oral contraceptive compared to DSG, providing a better quality of life and adherence to the contraceptive method as demonstrated by lower discontinuation rates of women using the estrogen-free DRSP-only pill.
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20
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Römer T, Bitzer J, Egarter C, Hadji P, Kiechle M, Kramer H, Oppelt PG, Peters K, Stute P, Schaudig K, Wiegratz I, Regidor PA. Oral Progestins in Hormonal Contraception: Importance and Future Perspectives of a New Progestin Only-Pill Containing 4 mg Drospirenone. Geburtshilfe Frauenheilkd 2021; 81:1021-1030. [PMID: 34565826 PMCID: PMC8454215 DOI: 10.1055/a-1471-4408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/28/2021] [Indexed: 12/14/2022] Open
Abstract
Hormonal contraceptives are an effective and safe method for preventing pregnancy. Progestins used in contraception are either components of combined hormonal contraceptives (tablets, patches or vaginal rings) or are used as a single active ingredient in progestin mono-preparations (the progestin-only pill (POP), implants, intrauterine systems or depot preparations). Progestins are highly effective in long-term contraception when used properly, and have a very good safety profile with very few contraindications. A new oestrogen-free ovulation inhibitor (POP) has recently been authorised in the USA and the EU. This progestin mono-preparation contains 4 mg of drospirenone (DRSP), which has anti-gonadotropic, anti-mineralocorticoidic and anti-androgenic properties. The hormone administration regimen of 24 days followed by a 4-day hormone-free period was chosen to improve bleeding control and to maintain oestradiol concentrations at early follicular-phase levels, preventing oestrogen deficiency. Clinical trials have demonstrated a high contraceptive effectiveness, a very low risk of cardiovascular side effects and a favourable menstrual bleeding pattern. Due to the long half-life of DRSP (30 - 34 hours), the effectiveness of the preparation is maintained even if a woman forgets to take a pill on a single occasion. Studies involving deliberate 24-hour delays in taking a pill have demonstrated that ovulation inhibition is maintained if a single pill is missed. Following a summary of the current status of oestrogen-free contraception, this review article will describe the clinical development programme of the 4 mg DRSP mono-preparation and the resulting data on the effectiveness and safety of this new oestrogen-free oral hormonal contraceptive.
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Affiliation(s)
- Thomas Römer
- Abteilung für Gynäkologie und Geburtshilfe, Evangelisches Klinikum Köln Weyertal GmbH, Köln, Germany
| | - Johannes Bitzer
- Klinik für Geburtshilfe und Gynäkologie, Universitätskrankenhaus Basel, Basel, Switzerland
| | - Christian Egarter
- Abteilung für Gynäkologische Endokrinologie, Medizinische Universität Wien, Wien, Austria
| | - Peyman Hadji
- Frankfurter Hormon und Osteoporosezentrum, Frankfurt am Main, Germany,Philipps Universität Marburg, Marburg, Germany
| | - Marion Kiechle
- Direktorin der Frauenklinik, Universitätsklinikum Rechts der Isar der Technischen Universität München (TUM), München, Germany
| | - Heike Kramer
- Ärztliche Gesellschaft zur Gesundheitsförderung e. V., Spardorf/Erlangen, Germany
| | | | | | - Petra Stute
- Klinik für Gynäkologie und Geburtshilfe, Universitätsklinikum Inselspital Bern, Bern, Switzerland
| | - Katrin Schaudig
- Praxis für gynäkologische Endokrinologie HORMONE HAMBURG, Hamburg, Germany
| | - Inka Wiegratz
- Kinderwunsch & Hormonzentrum Frankfurt – Am Palmengarten, Frankfurt am Main, Germany,Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | - Pedro-Antonio Regidor
- Medical Director Exeltis Europe, Ismaning, Germany,Correspondence/Korrespondenzadresse Prof. Pedro-Antonio Regidor, MD PhD Medical Director Exeltis EuropeAdalperostraße 8485737 IsmaningGermany
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21
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Luque-Ramírez M, Ortiz-Flores AE, Nattero-Chávez L, Escobar-Morreale HF. A safety evaluation of current medications for adult women with the polycystic ovarian syndrome not pursuing pregnancy. Expert Opin Drug Saf 2020; 19:1559-1576. [PMID: 33070640 DOI: 10.1080/14740338.2020.1839409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION The polycystic ovary syndrome (PCOS) is a very prevalent disorder in premenopausal women. Cardiovascular risk factors cluster in these patients, raising concern about the safety of the drugs commonly used to ameliorate symptoms of androgen excess in in this population at risk of cardiovascular morbidity. AREAS COVERED This review summarizes the clinical efficacy and safety profiles of drugs commonly used for the management of hyperandrogenic symptoms and endometrial protection in adult women with PCOS who do not seek pregnancy. EXPERT OPINION Antiandrogenic drugs usually used in adult women with PCOS carry a low risk of severe side effects. In spite of the cardiovascular risk profile of women with PCOS, and that individualized risk assessment is of paramount importance, there is no solid evidence supporting that the use of combined oral contraceptives in these women increases the risk of cardiovascular or thromboembolic events compared with the general population. However, virtually all these drugs are used in an off-label fashion. Large, high-quality studies addressing the long-term safety of pharmacological treatments in women with PCOS are definitely needed.
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Affiliation(s)
- Manuel Luque-Ramírez
- Diabetes, Obesity, and Human Reproduction Research Group, Instituto Ramón Y Cajal De Investigación Sanitaria, Centro De Investigación Biomédica En Red Diabetes Y Enfermedades Metabólicas Asociadas (CIBERDEM) & University of Alcalá , Madrid, Spain.,Department of Endocrinology and Nutrition, Hospital Universitario Ramón Y Cajal , Madrid, Spain
| | - Andrés E Ortiz-Flores
- Diabetes, Obesity, and Human Reproduction Research Group, Instituto Ramón Y Cajal De Investigación Sanitaria, Centro De Investigación Biomédica En Red Diabetes Y Enfermedades Metabólicas Asociadas (CIBERDEM) & University of Alcalá , Madrid, Spain
| | - Lia Nattero-Chávez
- Diabetes, Obesity, and Human Reproduction Research Group, Instituto Ramón Y Cajal De Investigación Sanitaria, Centro De Investigación Biomédica En Red Diabetes Y Enfermedades Metabólicas Asociadas (CIBERDEM) & University of Alcalá , Madrid, Spain.,Department of Endocrinology and Nutrition, Hospital Universitario Ramón Y Cajal , Madrid, Spain
| | - Héctor F Escobar-Morreale
- Diabetes, Obesity, and Human Reproduction Research Group, Instituto Ramón Y Cajal De Investigación Sanitaria, Centro De Investigación Biomédica En Red Diabetes Y Enfermedades Metabólicas Asociadas (CIBERDEM) & University of Alcalá , Madrid, Spain.,Department of Endocrinology and Nutrition, Hospital Universitario Ramón Y Cajal , Madrid, Spain
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Palacios S, Colli E, Regidor PA. Efficacy and cardiovascular safety of the new estrogen-free contraceptive pill containing 4 mg drospirenone alone in a 24/4 regime. BMC WOMENS HEALTH 2020; 20:218. [PMID: 33008401 PMCID: PMC7530969 DOI: 10.1186/s12905-020-01080-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 09/17/2020] [Indexed: 02/07/2023]
Abstract
Background A new estrogen-free contraceptive has been approved by both the FDA and more than 15 European authorities. It is composed of drospirenone (DRSP) at a dosage of 4 mg in a regimen 24/4. The molecule is known to have anti-gonadotropic, anti-mineralocorticoid, anti-estrogenic, and antiandrogenic properties. The purpose of these clinical trials with a new estrogen-free contraceptive was to introduce a contraceptive method with high efficacy and showing a profile with low cardiovascular risks. Methods Three European and American multicenter clinical trials have been conducted in more than 2500 patients and more than 25,000 cycles, not only demonstrating an excellent efficacy (Pearl Index of 0.73) but also investigating possible cardiovascular risks. In the USA study, 422 participants (41.9%) had a risk factor for VTE, while in the European studies, 261 patients (16.6%) had at least one VTE risk factor. Amount of arterial and venous thromboembolic events, hemostasiological data, blood pressure development, and ECG data were evaluated. Results No single case of VTE was documented, no changes in hemastosiological parameters were observed, a small decrease in RR in patients with pretreatment values between 130 and 140 and/or 85 to 90 mm HG and no influence on ECG parameters were observed. Conclusions The introduction of a new estrogen-free contraceptive with 4 mg of non-micronized drospirenone in a 24/4-day regimen expands contraception options for women as not only a high efficacy could be demonstrated during clinical trials but also a very high cardiovascular safety profile was observed even in women with cardiovascular risk factors. Trial registration EudraCT registration numbers: 2010–021787-15 & 2011–002396-42. Clincaltrials.gov: NCT02269241.
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Affiliation(s)
- Santiago Palacios
- Instituto Palacios, Salud y Medicina de la Mujer, C/ Antonio Acuña 9, 28009, Madrid, Spain
| | - Enrico Colli
- Exeltis HealthCare Madrid. C/ Manuel Pombo Angulo 28, 4thFloor, 28050, Madrid, Spain
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Chiara Del Savio M, De Fata R, Facchinetti F, Grandi G. Drospirenone 4 mg-only pill (DOP) in 24+4 regimen: a new option for oral contraception. Expert Rev Clin Pharmacol 2020; 13:685-694. [DOI: 10.1080/17512433.2020.1783247] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Maria Chiara Del Savio
- Department of Medical and Surgical Sciences for Mother, Child and Adult, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Di Modena, 41124, Modena, Italy
| | - Riccardo De Fata
- Department of Medical and Surgical Sciences for Mother, Child and Adult, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Di Modena, 41124, Modena, Italy
| | - Fabio Facchinetti
- Department of Medical and Surgical Sciences for Mother, Child and Adult, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Di Modena, 41124, Modena, Italy
| | - Giovanni Grandi
- Department of Medical and Surgical Sciences for Mother, Child and Adult, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Di Modena, 41124, Modena, Italy
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Goldstuck ND. Modern menstruation: Is it abnormal and unhealthy? Med Hypotheses 2020; 144:109955. [PMID: 32526510 DOI: 10.1016/j.mehy.2020.109955] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/04/2020] [Indexed: 12/17/2022]
Abstract
The menstrual cycle appears to have evolved in humans and some other species to improve reproductive efficiency by enabling progesterone production without the presence of the fetus. This phenomenon is termed spontaneous decidualization. Repeated menstruation is produced in modern women because of better general health and having fewer pregnancies later in life and limiting breast feeding. The repeated breakdown of a progesterone primed endometrium releases an inflammatory cascade which appears to have short and long term adverse consequences. Repetitive modern menstruation is no longer a sign of good general and reproductive health but a harbinger of possible future health problems. Cyclical menstruation has no intrinsic biological value or necessity in modern life. Spontaneous decidualization can be prevented by using estrogen-progestin combinations or progestins on their own. Newer and safer hormonal products are now available and should become even safer in the future. Hormonal suppression of spontaneous decidualization should be encouraged in adolescent and young women as a health promotional option.
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Affiliation(s)
- Norman D Goldstuck
- Department of Obstetrics and Gynaecology, Faculty of Medicine and Health Sciences, University of Stellenbosch, Francie van Zyl Dr, Tygerberg Hospital, Bellville, Cape Town 7505, South Africa.
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