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Fruzzetti F, Machado RB, Lete I, Patel A, Boolell M. A review of the pharmacology, clinical outcomes, and real-world effectiveness, safety, and non-contraceptive effects of NOMAC/E2. Eur J Obstet Gynecol Reprod Biol X 2024; 21:100283. [PMID: 38318398 PMCID: PMC10839580 DOI: 10.1016/j.eurox.2024.100283] [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: 11/13/2023] [Revised: 01/15/2024] [Accepted: 01/21/2024] [Indexed: 02/07/2024] Open
Abstract
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.
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Affiliation(s)
- Franca Fruzzetti
- Clinica San Rossore, Viale delle Cascine, 152/f, 56122 Pisa, Italy
| | - Rogerio Bonassi Machado
- Faculty of Medicine of Jundiai, Jundiai, R. Francisco Telles, 250, 13202-550 Jundiaí, São Paulo, Brazil
| | - Iñaki Lete
- Jose Atxotegi Kalea, s/n, 01009 Gasteiz, Araba, Spain
- University Hospital Araba, s/n, 01009 Gasteiz, Araba, Spain
| | - Amisha Patel
- Theramex HQ UK Ltd, 50 Broadway, 5th Floor, London SW1H 0BL, UK
| | - Mitra Boolell
- Theramex HQ UK Ltd, 50 Broadway, 5th Floor, London SW1H 0BL, UK
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Ackerman KE, Singhal V, Slattery M, Eddy KT, Bouxsein ML, Lee H, Klibanski A, Misra M. Effects of Estrogen Replacement on Bone Geometry and Microarchitecture in Adolescent and Young Adult Oligoamenorrheic Athletes: A Randomized Trial. J Bone Miner Res 2020; 35:248-260. [PMID: 31603998 PMCID: PMC7064307 DOI: 10.1002/jbmr.3887] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 09/27/2019] [Accepted: 10/01/2019] [Indexed: 02/04/2023]
Abstract
Oligoamenorrheic athletes (OAs) have lower bone mineral density (BMD) and greater impairment of bone microarchitecture, and therefore higher fracture rates compared to eumenorrheic athletes. Although improvements in areal BMD (aBMD; measured by dual-energy X-ray absorptiometry) in OAs have been demonstrated with transdermal estrogen treatment, effects of such treatment on bone microarchitecture are unknown. Here we explore effects of transdermal versus oral estrogen versus no estrogen on bone microarchitecture in OA. Seventy-five OAs (ages 14 to 25 years) were randomized to (i) a 100-μg 17β-estradiol transdermal patch (PATCH) administered continuously with 200 mg cyclic oral micronized progesterone; (ii) a combined 30 μg ethinyl estradiol and 0.15 mg desogestrel pill (PILL); or (iii) no estrogen/progesterone (NONE) and were followed for 12 months. Calcium (≥1200 mg) and vitamin D (800 IU) supplements were provided to all. Bone microarchitecture was assessed using high-resolution peripheral quantitative CT at the distal tibia and radius at baseline and 1 year. At baseline, randomization groups did not differ by age, body mass index, percent body fat, duration of amenorrhea, vitamin D levels, BMD, or bone microarchitecture measurements. After 1 year of treatment, at the distal tibia there were significantly greater increases in total and trabecular volumetric BMD (vBMD), cortical area and thickness, and trabecular number in the PATCH versus PILL groups. Trabecular area decreased significantly in the PATCH group versus the PILL and NONE groups. Less robust differences between groups were seen at the distal radius, where percent change in cortical area and thickness was significantly greater in the PATCH versus PILL and NONE groups, and changes in cortical vBMD were significantly greater in the PATCH versus PILL groups. In conclusion, in young OAs, bone structural parameters show greater improvement after 1 year of treatment with transdermal 17β-estradiol versus ethinyl estradiol-containing pills, particularly at the tibia. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Kathryn E Ackerman
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Division of Sports Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Vibha Singhal
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Division of Pediatric Endocrinology, Massachusetts General Hospital for Children and Harvard Medical School, Boston, MA, USA
| | - Meghan Slattery
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Kamryn T Eddy
- Eating Disorders Clinical and Research Program, Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Mary L Bouxsein
- Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, Division of Endocrinology, Massachusetts General Hospital, and Harvard Medical School, Boston, MA, USA
| | - Hang Lee
- Biostatistics Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Anne Klibanski
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Division of Pediatric Endocrinology, Massachusetts General Hospital for Children and Harvard Medical School, Boston, MA, USA
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Ackerman KE, Singhal V, Baskaran C, Slattery M, Campoverde Reyes KJ, Toth A, Eddy KT, Bouxsein ML, Lee H, Klibanski A, Misra M. Oestrogen replacement improves bone mineral density in oligo-amenorrhoeic athletes: a randomised clinical trial. Br J Sports Med 2018; 53:229-236. [PMID: 30301734 DOI: 10.1136/bjsports-2018-099723] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Normal-weight oligo-amenorrhoeic athletes (OAA) are at risk for low bone mineral density (BMD). Data are lacking regarding the impact of oestrogen administration on bone outcomes in OAA. Our objective was to determine the effects of transdermal versus oral oestrogen administration on bone in OAA engaged in weight-bearing activity. METHODS 121 patients with OAA aged 14-25 years were randomised to receive: (1) a 17β-estradiol transdermal patch continuously with cyclic oral micronised progesterone (PATCH), (2) a combined ethinyl estradiol and desogestrel pill (PILL) or (3) no oestrogen/progesterone (NONE). All participants received calcium and vitamin D supplementation. Areal BMD was assessed at the lumbar spine, femoral neck, total hip and total body less head using dual-energy X-ray absorptiometry at baseline, 6 and 12 months. Intention-to-treat (ITT) and completers analyses were performed. RESULTS Randomised groups did not differ for age, body mass index or BMD Z-scores at baseline. For ITT analysis, spine and femoral neck BMD Z-scores significantly increased in the PATCH versus PILL (p=0.011 and p=0.021, respectively) and NONE (p=0.021 and p=0.033, respectively) groups, and hip BMD Z-scores significantly increased in the PATCH versus PILL group (p=0.018). Similar findings were noted in completers analysis. CONCLUSION Transdermal estradiol over 12 months improves BMD in young OAA, particularly compared with an ethinyl estradiol-containing contraceptive pill/oral contraceptives. TRIAL REGISTRATION NUMBER NCT00946192; Pre-results.
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Affiliation(s)
- Kathryn E Ackerman
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Divisions of Sports Medicine and Endocrinology, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Vibha Singhal
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Division of Pediatric Endocrinology, Mass General Hospital for Children and Harvard Medical School, Boston, Massachusetts, USA
| | - Charumathi Baskaran
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Division of Pediatric Endocrinology, Mass General Hospital for Children and Harvard Medical School, Boston, Massachusetts, USA
| | - Meghan Slattery
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | | | - Alexander Toth
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Kamryn T Eddy
- Eating Disorders Clinical and Research Program, Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Mary L Bouxsein
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.,Division of Endocrinology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Hang Lee
- Biostatistics Center, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Anne Klibanski
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Division of Pediatric Endocrinology, Mass General Hospital for Children and Harvard Medical School, Boston, Massachusetts, USA
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Shah D, Patil M. Consensus Statement on the Use of Oral Contraceptive Pills in Polycystic Ovarian Syndrome Women in India. J Hum Reprod Sci 2018; 11:96-118. [PMID: 30158805 PMCID: PMC6094524 DOI: 10.4103/jhrs.jhrs_72_18] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Objective: To provide consensus recommendations for health-care providers on the use of oral contraceptive pills (OCPs) in polycystic ovarian syndrome (PCOS) women in India. Participants: Extensive deliberations, discussions, and brainstorming were done with different fraternities (specialists) being involved. These included endocrinologists, gynecologists, reproductive endocrinologists, dermatologists, public health experts, researchers, and a project manager with a team to develop the guideline. Evidence: Published literature was retrieved through searches of Medline and The Cochrane Database from January 2003 to December 2017 using appropriate-controlled vocabulary (e.g., oral contraceptive pills, polycystic ovarian syndrome, long term outcomes, infertility). Clinical practice guideline collections, clinical trial registries, and national and international medical specialty societies' publications and data were also reviewed to suggest the recommendations.
Process: The working group for guideline committee included members from the PCOS Society (India), Indian Society for Assisted Reproduction, The Mumbai Obstetric and Gynecological Society, The Endocrine Society of India, Indian Association of Dermatologists, Venereologists and Leprologists, Cosmetic Dermatology Society (India), Academicians from Medical Colleges, National Institute for Research in Reproductive Health, and a Research Associate. The core team included five reproductive endocrinologists, five gynecologists, five dermatologists, three endocrinologists, two public health experts and one research associate.
Conclusions: This consensus statement provides the guidance/recommendations for Indian practitioners regarding the use of OCP in women with PCOS. PCOS is one of the common endocrinopathies encountered in gynecological/endocrine practice. The spectrum of this disorder may range from prepubertal girls with premature pubarche, young girls with hirsutism, acne and anovulatory cycles, married women with infertility, and elderly women. Although obesity is a common feature for most PCOS patients, 'lean PCOS' also exists. For several years, OCPs have played an important role in the symptom management of PCOS women. This is due to the fact that OCPs decrease the luteinizing hormone, reduce androgen production, and increase sex hormone-binding globulin, which binds androgens. Several new formulations of OCPs have been developed to decrease the side effects. This includes use of less androgenic progestins and lower doses of ethinyl estradiol. These consensus recommendations help the health provider to choose the right type of OCPs, which will alleviate the symptoms with least side effects. It also gives insight into the indications, contraindications, and concerns regarding its short, intermediate and long-term use.
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Affiliation(s)
- Duru Shah
- President PCOS Society of India, Mumbai, Maharashtra, India.,Director Gynaecworld the Center for Women's Health and Fertility, Mumbai, Maharashtra, India
| | - Madhuri Patil
- Scientific Coordinator, The PCOS Society of India, Bengaluru, Karnataka, India.,Editor, Journal of Human Reproductive Sciences, Bengaluru, Karnataka, India.,Clinical Director and Principal, Dr. Patil's Fertility and Endoscopy Clinic, Bengaluru, Karnataka, India
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Pooled analysis of two randomized, open-label studies comparing the effects of nomegestrol acetate/17β-estradiol and drospirenone/ethinyl estradiol on bleeding patterns in healthy women. Contraception 2017; 95:390-397. [DOI: 10.1016/j.contraception.2016.12.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 12/08/2016] [Accepted: 12/12/2016] [Indexed: 11/20/2022]
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Caruso S, Cianci S, Cariola M, Fava V, Di Pasqua S, Cianci A. Improvement of Low Sexual Desire Due to Antiandrogenic Combined Oral Contraceptives After Switching to an Oral Contraceptive Containing 17β-Estradiol. J Womens Health (Larchmt) 2017; 26:728-734. [PMID: 28323519 DOI: 10.1089/jwh.2016.5801] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES To investigate the effects of a combined oral contraceptive (COC) containing 17β-estradiol (E2) 1.5 mg and nomegestrol acetate 2.5 mg (NOMAC/E2) on the sexual health of women affected by low sexual desire due to COCs containing ethinylestradiol. MATERIALS AND METHODS Eighty-three women (age range 19-32) participated in the study. Sex hormone-binding globulin (SHBG), total testosterone (TT), and free androgen index (FAI) were measured. The Female Sexual Function Index (FSFI) and the Female Sexual Distress Scale (FSDS) questionnaires were used to assess sexual function and distress, respectively. Hormonal levels were measured and questionnaires were administered before the women switched COC NOMAC/E2 usage (baseline) and at the 3-month (first) and 6-month (second) follow-ups. RESULTS SHBG reduction (p < 0.001), TT (p < 0.05), and FAI increases (p < 0.001) were observed during the first and second follow-ups with respect to baseline values. Sexual desire increased from baseline to the first and second follow-ups (p < 0.001). At baseline, the total FSFI score was 22 ± 1.5 and the FSDS score was 16.6 ± 1.3, both indicating sexual dysfunction with sexual distress. At the first follow-up, the total FSFI score and the FSDS score increased toward sexual health values, being 28.3 ± 1.6 and 12.1 ± 1.5, respectively (p < 0.001). At the second follow-up, the FSFI score had risen to 30.6 ± 1.3 (p < 0.001) and the FSDS score had dropped to 8.3 ± 1.4 (p < 0.001). CONCLUSIONS COCs containing E2 are an innovation that could help women to not suffer from low sexual desire during hypoandrogenic COC usage.
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Affiliation(s)
- Salvatore Caruso
- 1 Department of General Surgery and Medical Surgical Specialties, Gynecological Clinic of the Policlinico Universitario , Catania, Italy .,2 Research Group for Sexology, University of Catania , Catania, Italy
| | - Stefano Cianci
- 1 Department of General Surgery and Medical Surgical Specialties, Gynecological Clinic of the Policlinico Universitario , Catania, Italy
| | - Maria Cariola
- 1 Department of General Surgery and Medical Surgical Specialties, Gynecological Clinic of the Policlinico Universitario , Catania, Italy
| | - Valentina Fava
- 1 Department of General Surgery and Medical Surgical Specialties, Gynecological Clinic of the Policlinico Universitario , Catania, Italy .,2 Research Group for Sexology, University of Catania , Catania, Italy
| | - Salvatore Di Pasqua
- 1 Department of General Surgery and Medical Surgical Specialties, Gynecological Clinic of the Policlinico Universitario , Catania, Italy
| | - Antonio Cianci
- 1 Department of General Surgery and Medical Surgical Specialties, Gynecological Clinic of the Policlinico Universitario , Catania, Italy .,2 Research Group for Sexology, University of Catania , Catania, Italy
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DeVore GR. Computing the Z Score and Centiles for Cross-sectional Analysis: A Practical Approach. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2017; 36:459-473. [PMID: 28093799 DOI: 10.7863/ultra.16.03025] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 05/30/2016] [Indexed: 06/06/2023]
Abstract
Although Z scores have been reported in the literature, one of the problems for the nonstatistician is understanding the systematic approach used to compute the predicted mean and standard deviation, components of the Z score equation, which may vary as the independent variable changes over time (eg, gestational age). This review focuses on a step-by-step analysis using linear, quadratic, and fractional polynomials to compute the mean and standard deviation as a function of a continuous independent variable. Once the mean and standard deviation are computed, the Z score and centile can be derived and Z score calculators created that enable investigators to implement the results in the laboratory and/or clinical setting.
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Affiliation(s)
- Greggory R DeVore
- Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- Fetal Diagnostic Centers, Pasadena, Tarzana, and Lancaster, California, USA
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Grandi G, Napolitano A, Cagnacci A. Metabolic impact of combined hormonal contraceptives containing estradiol. Expert Opin Drug Metab Toxicol 2016; 12:779-87. [DOI: 10.1080/17425255.2016.1190832] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Giovanni Grandi
- Department of Obstetrics Gynecology and Pediatrics, Obstetrics and Gynecology Unit, Azienda Ospedaliero Universitaria Policlinico of Modena, Modena, Italy
| | - Antonella Napolitano
- Department of Obstetrics Gynecology and Pediatrics, Obstetrics and Gynecology Unit, Azienda Ospedaliero Universitaria Policlinico of Modena, Modena, Italy
| | - Angelo Cagnacci
- Department of Obstetrics Gynecology and Pediatrics, Obstetrics and Gynecology Unit, Azienda Ospedaliero Universitaria Policlinico of Modena, Modena, Italy
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Abstract
INTRODUCTION The focus in contraception is shifting from oral contraceptives to more effective methods, such as implants and intrauterine devices. Generics are favored by third-party payors. As a result, potentially exciting developments in branded pills to increase safety or to reduce side effects may have gone unnoticed. AREAS COVERED This article reviews the features of each of the four new oral contraceptives that have been introduced in the United States and/or Europe in the last few years. The motivation for the development of each product is outlined as is its efficacy, safety, tolerability and the noncontraceptive applications that have been explored are described. EXPERT OPINION The hypothesis that using estradiol in place of ethinyl estradiol would reduce the risk of venous thromboembolism is still to be proven. However, the stronger progestogens used in these formulations may offer other tangible benefits for selected women. The new products for extended cycle pill use may have less impact. The flexible regimen can be adopted using any pill, but the approved product does provide convenience to patients. Cost will continue to be the determining factor in the acceptance of these new products, unless substantial health benefits can be conclusively proven.
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Affiliation(s)
- Anita L Nelson
- a Obstetrics and Gynecology , David Geffen School of Medicine at UCLA , Manhattan Beach , CA , USA
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Akintomide H, Panicker S. Nomegestrol acetate/17-beta estradiol: a review of efficacy, safety, and patient acceptability. Open Access J Contracept 2015; 6:77-86. [PMID: 29386925 PMCID: PMC5683186 DOI: 10.2147/oajc.s61942] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Nomegestrol acetate (NOMAC) 2.5 mg with 17-beta estradiol (E2) 1.5 mg is a new combined oral contraceptive (COC) formulation and is the first monophasic E2 pill to be marketed, having been licensed for use in Europe in 2011. It is available to be taken daily in a regimen of 24 active pills followed by four placebo pills. NOMAC is a highly selective 19-nor progestogen derivative with specific binding to progesterone receptors, anti-estrogenic activity and no androgenic, mineralocorticoid nor glucocorticoid effects. E2 is an estrogen that is identical to endogenous estrogen. While it has been in use for only a short period of time, current evidence suggests that NOMAC/E2 is just as effective, safe, and acceptable as existing COC preparations. Two large Phase III trials conducted in the Americas and across Europe, Australia, and Asia showed lower cumulative pregnancy rates in the NOMAC/E2 groups compared to the drospirenone (DRSP) 3 mg in combination with ethinyl estradiol (EE) 30 µg (DRSP/EE) groups but this difference was not statistically significant. NOMAC/E2 exhibits a good safety profile and has less effects on cardiovascular risk, hemostatic, metabolic, and endocrine factors in comparison to COCs containing EE in combination with levonorgestrel (LNG) or DRSP. NOMAC/E2 has also been found to cause less breast cell proliferation when compared to E2 alone and has some anti-proliferative effect on human breast cancer cells. NOMAC/E2 is considered acceptable as its compliance, continuation rates, and bleeding patterns were similar to COCs containing DRSP/EE and LNG 150 µg combined with EE 30 µg or LNG 100 µg combined with EE 20 µg (LNG/EE). However, discontinuation was found to be slightly higher in the NOMAC/E2 groups in the two large Phase III trials comparing NOMAC/E2 use with DRSP/EE. As the scientific literature has limited information on NOMAC/E2, further experience with NOMAC/E2 is required.
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Affiliation(s)
- Hannat Akintomide
- Sexual and Reproductive Health, Central and North West London NHS Trust, Margaret Pyke Centre, London, UK
| | - Sabeena Panicker
- Sexual and Reproductive Health, Central and North West London NHS Trust, Margaret Pyke Centre, London, UK
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Mattison DR, Karyakina N, Goodman M, LaKind JS. Pharmaco- and toxicokinetics of selected exogenous and endogenous estrogens: A review of the data and identification of knowledge gaps. Crit Rev Toxicol 2014; 44:696-724. [DOI: 10.3109/10408444.2014.930813] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Lopez LM, Grimes DA, Schulz KF, Curtis KM, Chen M. Steroidal contraceptives: effect on bone fractures in women. Cochrane Database Syst Rev 2014; 2014:CD006033. [PMID: 24960023 PMCID: PMC11127753 DOI: 10.1002/14651858.cd006033.pub5] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Steroidal contraceptive use has been associated with changes in bone mineral density in women. Whether such changes increase the risk of fractures later in life is not clear. Osteoporosis is a major public health concern. Age-related decline in bone mass increases the risk of fracture, especially of the spine, hip, and wrist. Concern about bone health influences the recommendation and use of these effective contraceptives globally. OBJECTIVES Our aim was to evaluate the effect of using hormonal contraceptives before menopause on the risk of fracture in women. SEARCH METHODS Through April 2014, we searched for studies of fracture or bone health and hormonal contraceptives in MEDLINE, POPLINE, CENTRAL, EMBASE, and LILACS, as well as ClinicalTrials.gov and ICTRP. We examined reference lists of relevant articles for other trials. For the initial review, we wrote to investigators to find additional trials. SELECTION CRITERIA Randomized controlled trials (RCTs) were considered if they examined fractures, bone mineral density (BMD), or bone turnover markers in women with hormonal contraceptive use prior to menopause. Eligible interventions included comparisons of a hormonal contraceptive with a placebo or with another hormonal contraceptive that differed in terms of drug, dosage, or regimen. They also included providing a supplement to one group. DATA COLLECTION AND ANALYSIS We assessed all titles and abstracts identified through the literature searches. Mean differences were computed using the inverse variance approach. For dichotomous outcomes, the Mantel-Haenszel odds ratio (OR) was calculated. Both included the 95% confidence interval (CI) and used a fixed-effect model. Due to differing interventions, no trials could be combined for meta-analysis. We applied principles from GRADE to assess the evidence quality and address confidence in the effect estimates. In addition, a sensitivity analysis included trials that provided sufficient data for this review and evidence of at least moderate quality. MAIN RESULTS We found 19 RCTs that met our eligibility criteria. Eleven trials compared different combined oral contraceptives (COCs) or regimens of COCs; five examined an injectable versus another injectable, implant, or IUD; two studied implants, and one compared the transdermal patch versus the vaginal ring. No trial had fracture as an outcome. BMD was measured in 17 studies and 12 trials assessed biochemical markers of bone turnover. Depot medroxyprogesterone acetate (DMPA) was associated with decreased bone mineral density (BMD). The placebo-controlled trials showed BMD increases for DMPA plus estrogen supplement and decreases for DMPA plus placebo supplement. COCs did not appear to negatively affect BMD, and some formulations had more positive effects than others. However, no COC trial was placebo-controlled. Where studies showed differences between groups in bone turnover markers, the results were generally consistent with those for BMD. For implants, the single-rod etonogestrel group showed a greater BMD decrease versus the two-rod levonorgestrel group but results were not consistent across all implant comparisons.The sensitivity analysis included 11 trials providing evidence of moderate or high quality. Four trials involving DMPA showed some positive effects of an estrogen supplement on BMD, a negative effect of DMPA-subcutaneous on lumbar spine BMD, and a negative effect of DMPA on a bone formation marker. Of the three COC trials, one had a BMD decrease for the group with gestodene plus EE 15 μg. Another indicated less bone resorption in the group with gestodene plus EE 30 μg versus EE 20 μg. AUTHORS' CONCLUSIONS Whether steroidal contraceptives influence fracture risk cannot be determined from existing information. The evidence quality was considered moderate overall, largely due to the trials of DMPA, implants, and the patch versus ring. The COC evidence varied in quality but was low overall. Many trials had small numbers of participants and some had large losses. Health care providers and women should consider the costs and benefits of these effective contraceptives. For example, injectable contraceptives and implants provide effective, long-term birth control yet do not involve a daily regimen. Progestin-only contraceptives are considered appropriate for women who should avoid estrogen due to medical conditions.
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Affiliation(s)
- Laureen M Lopez
- FHI 360Clinical Sciences359 Blackwell St, Suite 200DurhamNorth CarolinaUSA27701
| | - David A Grimes
- University of North Carolina, School of MedicineObstetrics and GynecologyCB#7570Chapel HillNorth CarolinaUSA27599‐7570
| | - Kenneth F Schulz
- FHI 360 and UNC School of MedicineQuantitative Sciences359 Blackwell Street, Suite 200Suite 200DurhamNorth CarolinaUSA27701
| | - Kathryn M. Curtis
- Centers for Disease Control and PreventionDivision of Reproductive HealthMS K‐34, 4770 Buford Highway, NEAtlantaGeorgiaUSA30341
| | - Mario Chen
- FHI 360Division of Biostatistics359 Blackwell St, Suite 200Durham, NCNorth CarolinaUSA27709
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Abstract
Oral contraceptives remain a popular method of contraception over 50 years after their introduction. While safe and effective for many women, the failure rate of oral contraception is about 8%. Concerns about the risk of venous thromboembolism continue to drive the search for the safest oral contraceptive formulations. The oral contraceptive NOMAC-E2 contains nomegestrol acetate (NOMAC) 2.5 mg + 17b-estradiol (E2) 1.5 mg. The approved dosing regimen is 24 days of active hormone, followed by a 4-day hormone-free interval. NOMAC is a progestin derived from testosterone, which has high bioavailability, rapid absorption, and a long half-life. Estradiol, though it has a lower bioavailability, has been successfully combined with NOMAC in a monophasic oral contraceptive. Two recently published randomized controlled trials demonstrate that NOMAC-E2 is an effective contraceptive, with a Pearl Index less than one pregnancy per 100 woman-years. The bleeding pattern on NOMAC-E2 is characterized by fewer bleeding/spotting days, shorter withdrawal bleeds, and a higher incidence of amenorrhea than the comparator oral contraceptive containing drospirenone and ethinyl estradiol. The adverse event profile appears to be acceptable. Few severe adverse events were reported in the randomized controlled trials. The most common adverse events were irregular bleeding, acne, and weight gain. Preliminary studies suggest that NOMAC-E2 does not seem to have negative effects on hemostatic and metabolic parameters. While no one oral contraceptive formulation is likely to be the optimum choice for all women, NOMAC-E2 is a formulation with effectiveness comparable with that of other oral contraceptives, and a reassuring safety profile.
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Affiliation(s)
- Anne Burke
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Stanczyk FZ, Archer DF, Bhavnani BR. Ethinyl estradiol and 17β-estradiol in combined oral contraceptives: pharmacokinetics, pharmacodynamics and risk assessment. Contraception 2013; 87:706-27. [DOI: 10.1016/j.contraception.2012.12.011] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 12/25/2012] [Accepted: 12/25/2012] [Indexed: 11/16/2022]
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Shulman LP. Changing convention in combination oral contraceptives: estradiol and nomegestrol acetate in a monophasic 24/4 regimen. JOURNAL OF FAMILY PLANNING AND REPRODUCTIVE HEALTH CARE 2013; 39:211-6. [DOI: 10.1136/jfprhc-2013-100605] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Christin-Maitre S, Laroche E, Bricaire L. A New Contraceptive Pill Containing 17β-Estradiol and Nomegestrol Acetate. WOMENS HEALTH 2013; 9:13-23. [DOI: 10.2217/whe.12.70] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Most combined oral contraceptive pills contain ethinyl estradiol (EE) with progestins. In order to minimize the pill's cardiovascular risks, the concept of using 17β-estradiol (E2), the endogenous estradiol, arose in the 1970s. Many attempts to develop a pill containing 17β-E2 have failed as cycle control was low. The first pill containing 17β-E2 was launched in 2011. This monophasic pill contains 24 pills with 1.5 mg 17β-E2 and 2.5 mg nomegestrol acetate, and four placebo pills. Studies conducted in Europe and the USA demonstrate that its Pearl index is 0.38 and 1.13, respectively. It has less influence on hemostasis, fibrinolysis markers, lipids and carbohydrate metabolism than the combined oral contraceptive levonorgestrel/EE (150 g/30 g and 100 μg/20 μg). Withdrawal bleedings are shorter and lighter as compared with women using drospirenone/EE (3 mg/30 μg). The number of women without withdrawal bleeding is approximately 30% after 12 months. Even though its contraindications are identical to other combined oral contraceptives, this nomegestrol acetate/E2 pill should be considered to be of interest for many women.
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Affiliation(s)
- Sophie Christin-Maitre
- Reproductive Endocrine Unit, Hôpital Saint-Antoine, Université Pierre et Marie Curie, 75012 Paris, France
| | - Emmanuelle Laroche
- Reproductive Endocrine Unit, Hôpital Saint-Antoine, Université Pierre et Marie Curie, 75012 Paris, France
| | - Léopoldine Bricaire
- Reproductive Endocrine Unit, Hôpital Saint-Antoine, Université Pierre et Marie Curie, 75012 Paris, France
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