The DOI matches its Crossref record; 258 of the 268 references it cites were found in a registry or an index.
Ethinyl estradiol and 17β-estradiol in combined oral contraceptives: pharmacokinetics, pharmacodynamics and risk assessment
Abstract
The need to seek improved combined oral contraceptive (COC) efficacy, with fewer health risks and better acceptability, has been ongoing since the introduction of COCs more than 50 years ago. New progestin formulations combined with lower doses of ethinyl estradiol (EE), the predominant estrogenic component of COCs, have reduced the incidence of venous thromboembolism and other negative outcomes of COC treatment. Previous attempts to use endogenous 17β-estradiol (E₂) instead of EE were limited primarily by poor cycle control. The recent introduction of E₂-based formulations has renewed interest to determine if there are potential benefits of using E₂ in COCs. These formulations have been shown to have similar efficacy and cycle control as EE-based COCs. This review provides a brief summary of the pharmacology of EE and E₂, including metabolism, pharmacokinetics and pharmacodynamics, as well as adverse effects of these estrogens.
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In the citing paper
“New combinations containing E2, its ester estradiol valerate (EV), and estetrol (E4) have proven effective in combined contraceptives.”
From Ethinylestradiol in combined hormonal contraceptive has a broader effect on serum proteome compared with estradiol valerate: a randomized controlled trial (2023) · cites this paper as Stanczyk et al., 2013
In the citing paper
“They induce good cycle control and provoke less marked changes in metabolic and endocrine parameters compared with EE”
From Ethinylestradiol in combined hormonal contraceptive has a broader effect on serum proteome compared with estradiol valerate: a randomized controlled trial (2023) · cites this paper as Stanczyk et al., 2013
Citations
Cites
Plum, F. (1960) · Archives of Neurology · doi:10.1001/archneur.1960.03840090124020 · Cited by 10,388
The Steroid and Thyroid Hormone Receptor Superfamily
Evans, R. M. (1988) · Science · doi:10.1126/science.3283939 · Cited by 7,394
International Union of Pharmacology: Approaches to the Nomenclature of Voltage-Gated Ion Channels
Catterall, W. A., Chandy, K. G., Clapham, D. E., Gutman, G. A., Hofmann, F., Harmar, A. J., Abernethy, D. R., & Spedding, M. (2003) · Pharmacological Reviews · doi:10.1124/pr.55.4.5 · Cited by 7,126
The nuclear receptor superfamily: the second decade
Mangelsdorf, D. J., Thummel, C., Beato, M., Herrlich, P., Schütz, G., Umesono, K., Blumberg, B., Kastner, P., Mark, M., Chambon, P., et al. (1995) · Cell · doi:10.1016/0092-8674(95)90199-x · Cited by 6,964
Cloning of a novel receptor expressed in rat prostate and ovary.
Kuiper, G. G. J. M., Enmark, E., Pelto‐Huikko, M., Nilsson, S., & Gustafsson, J.-Α. (1996) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.93.12.5925 · Cited by 4,802
Williams Textbook of Endocrinology
Melmed, S., & Polonsky, K. S. (2016) · Elsevier eBooks · doi:10.1016/c2013-0-15980-6 · Cited by 3,715
Clinical gynecologic endocrinology and infertility
Fritz, M. A., & Speroff, L. (1983) · Cited by 2,099
Beatson, G. (1896) · The Lancet · doi:10.1016/s0140-6736(01)72384-7 · Cited by 1,609
Aromatase Cytochrome P450, The Enzyme Responsible for Estrogen Biosynthesis*
SIMPSON, E. R., Mahendroo, M., Means, G., Kilgore, M. W., Hinshelwood, M. M., Graham-Lorence, S. E., Amarneh, B., Ito, Y., Fisher, C. R., Michael, M. D., et al. (1994) · Endocrine Reviews · doi:10.1210/edrv-15-3-342 · Cited by 1,542
Regulation of ovarian follicular development in primates: facts and hypotheses
GOUGEON, A. (1996) · Endocrine Reviews · doi:10.1210/edrv-17-2-121 · Cited by 1,497
Flagged first, then by citations
10 of the 268 references couldn’t be matched to a known paper.
Research works printed but not linked: 3
- Stanczyk, 2001, Estrogens used for replacement therapy in postmenopausal women, Gynecol Endocrinol, 15, 17
- Waine, 1963, Metabolic effects of Envoid in rheumatoid patients, Arthritis Rheum, 6, 796
- Frobenius, 2011, “The rabbits are prepared …” — The development of ethinylestradiol and ethinyl testosterone, J Reprod Med Endo, 8, 32
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HIV pre-exposure prophylaxis in transgender women: a subgroup analysis of the iPrEx trial
Deutsch, M. B., Glidden, D. V., Sevelius, J. M., Keatley, J. G., McMahan, V., Guanira, J. V., Kallas, E. G., Chariyalertsak, S., & Grant, R. M. (2015) · The Lancet HIV · doi:10.1016/s2352-3018(15)00206-4 · Cited by 283
Estrogen and thrombosis: a bench to bedside review
Abou-Ismail, M. Y., Citla Sridhar, D., & Nayak, L. (2020) · Thrombosis Research · doi:10.1016/j.thromres.2020.05.008 · Cited by 261
Laurenson, J. P., Bloom, R. A., Page, S., & Sadrieh, N. K. (2014) · The AAPS Journal · doi:10.1208/s12248-014-9561-3 · Cited by 153
(2019) · Obstetrics & Gynecology · doi:10.1097/aog.0000000000003072 · Cited by 147
Hampson, E. (2020) · Hormones and Behavior · doi:10.1016/j.yhbeh.2019.104655 · Cited by 136
Metadata
- Authors
- Stanczyk, F. Z., Archer, D. F., & Bhavnani, B. R.
- Affiliations
- University of Southern California (US)
- Eastern Virginia Medical School (US)
- St. Michael's Hospital (CA)
- Venue
- Contraception
- Publisher
- Elsevier BV
- Published
- 2013-06
- Volume
- 87
- Issue
- 6
- Pages
- 706-727
- ISSN
- 0010-7824 (ISSN-L)
- OpenAlex
- W2072831812
- Cited by
- 201
- References
- 268
- Citations by year
- 2026: 14 · 2025: 17 · 2024: 29 · 2023: 18 · 2022: 25 · 2021: 25 · 2020: 16 · 2019: 12 · 2018: 9 · 2017: 8 · 2016: 4 · 2015: 11 · 2014: 10 · 2013: 2
- FWCI
- 1.29
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Contraception (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Health and Contraception
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Estrogen and related hormone effects
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Menopause: Health Impacts and Treatments
- Keywords
- ethinyl estradiol, estradiol, combined oral contraceptives, estrogen metabolism, endogenous estradiol, venous thromboembolism, cycle control, contraceptive efficacy, risk assessment
- MeSH terms
- Contraceptives, Oral, Combined, Dose-Response Relationship, Drug, Drug Interactions, Estradiol, Estrogens, Ethinyl Estradiol, Female, Humans, Menstrual Cycle, Progestins, Progesterone, Risk Assessment
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