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Edelman A, Jensen JT, Brown J, Thomas M, Archer DF, Schreiber CA, Teal S, Westhoff C, Dart C, Blithe DL. Emergency contraception for individuals weighing 80 kg or greater: A randomized trial of 30 mg ulipristal acetate and 1.5 mg or 3.0 mg levonorgestrel. Contraception 2024:110474. [PMID: 38663539 DOI: 10.1016/j.contraception.2024.110474] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/05/2024] [Accepted: 04/16/2024] [Indexed: 05/15/2024]
Abstract
OBJECTIVES To compare the efficacy of emergency contraception (EC) regimens used within 72 hours of unprotected intercourse in individuals weighing ≥80 kg. STUDY DESIGN We enrolled reproductive-aged healthy women in a multicenter, single-blind, randomized study of levonorgestrel 1.5 mg (LNG1X) and 3.0 mg (LNG2X) and ulipristal acetate 30 mg (UPA) (enrollment goal 1200). Key eligibility requirements included regular cycles, weight >/= 80kg, unprotected intercourse within 72 hours, no recent use of hormonal contraception, a negative urine pregnancy test (UPT), and willingness to abstain from intercourse until next menses. To assess our primary outcome of incidence of pregnancy, participants completed home UPTs; if no menses by 2-weeks post-treatment, or a positive UPT, they returned for an in-person visit with quantitative serum human chorionic gonadotropin and ultrasound. RESULTS We enrolled and randomized 532; 44 were not dosed or not evaluable for primary end point, leaving an analyzable sample of 488 (173 LNG1X, 158 LNG2X, 157 UPA) with similar demographics between groups (mean age 29.6 years [5.74], body mass index 37.09 kg/m2 [6.95]). Five pregnancies occurred (LNG1X n = 1, LNG2X n = 1, UPA n = 3); none occurred during the highest at-risk window (day of ovulation and the 3 days prior). We closed the study before achieving our enrollment goal because the low pregnancy rate in all groups established futility based on an interim blinded analysis. CONCLUSIONS Although slow enrollment limited our study power, we found no differences in pregnancy rates between EC regimens among women weighing 80 kg or more. Our results are not able to refute or support differences between the treatment arms. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov, www.clincialtrials.gov Clinical trials#: NCT03537768. IMPLICATIONS Women weighing 80 kg or more experienced no differences in pregnancy rates between oral EC regimens but due to several significant study limitations including sample size and the lack of a study population at high risk of pregnancy, our results are not able to determine if differences in treatment effectiveness exist.
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Affiliation(s)
- Alison Edelman
- Department of OB/GYN, Oregon Health & Science University, Portland, OR, United States.
| | - Jeffrey T Jensen
- Department of OB/GYN, Oregon Health & Science University, Portland, OR, United States
| | - Jill Brown
- Department of OB/GYN, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Michael Thomas
- Department of OB/GYN, University of Cincinnati, Cincinnati, OH, United States
| | - David F Archer
- Clinical Research Center, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, United States
| | - Courtney A Schreiber
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Stephanie Teal
- Department of OB/GYN, University Hospitals, Cleveland, OH, United States
| | - Carolyn Westhoff
- Department of OB/GYN, Columbia University, New York, NY, United States
| | - Clint Dart
- Health Decisions, A division of Premier Research, Durham, NC, United States
| | - Diana L Blithe
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, United States
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Gawron LM, Kaiser JE, Gero A, Sanders JN, Johnstone EB, Turok DK. Pharmacodynamic evaluation of the etonogestrel contraceptive implant initiated midcycle with and without ulipristal acetate: An exploratory study. Contraception 2024; 132:110370. [PMID: 38232940 PMCID: PMC10922844 DOI: 10.1016/j.contraception.2024.110370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/19/2024]
Abstract
OBJECTIVE To estimate the incidence of ovulation suppression within five days of etonogestrel 68 mg implant insertion in the presence of a dominant follicle with and without same-day ulipristal acetate. STUDY DESIGN This single site non-masked, exploratory randomized trial recruited people age 18-35 years with regular menstrual cycles, no pregnancy risk, and confirmed ovulatory function. We initiated transvaginal ultrasound examinations on menstrual day 7-9 and randomized participants 1:1 to etonogestrel implant alone or with concomitant ulipristal acetate 30 mg oral when a dominant follicle reached ≥14 mm in diameter. We completed daily sonography and serum hormone levels for up to seven days or transitioned to labs alone if sonographic follicular rupture occurred. We defined ovulation as follicular rupture followed by progesterone >3 ng/mL. We calculated point estimates, risk ratios and 95% confidence intervals for ovulation for each group. Ovulation suppression of ≥44% in either group (the follicular rupture suppression rate with oral levonorgestrel emergency contraception), would prompt future method testing. RESULTS From October 2020 to October 2022, we enrolled 40 people and 39 completed primary outcome assessments: 20 with etonogestrel implant alone (mean follicular size at randomization: 15.2 mm ± 0.9 mm) and 19 with etonogestrel implant + ulipristal acetate (mean follicular size at randomization: 15.4 mm ± 1.2 mm, p = 0.6). Ovulation suppression occurred in 13 (65%) of etonogestrel implant-alone participants (Risk ratio 0.6 (95% CI: 0.3, 1.1), p = 0.08) and seven (37%) of implant + ulipristal acetate participants. CONCLUSIONS Ovulation suppression of the etonogestrel implant alone exceeds threshold testing for future research while the implant + ulipristal acetate does not. IMPLICATIONS Data are lacking on midcycle ovulation suppression for the etonogestrel implant with and without oral ulipristal acetate. In this exploratory study, ovulation suppression occurred in 65% of implant participants and 37% of implant + ulipristal acetate participants. Ovulation suppression of the implant alone exceeds threshold testing for future emergency contraception research.
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Affiliation(s)
- Lori M Gawron
- Division of Family Planning, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, USA.
| | - Jennifer E Kaiser
- Division of Family Planning, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, USA
| | - Alexandra Gero
- Division of Family Planning, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, USA
| | - Jessica N Sanders
- Division of Family Planning, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, USA
| | - Erica B Johnstone
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, USA
| | - David K Turok
- Division of Family Planning, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, USA
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Gawron LM, Sexsmith CD, Carter G, Kaiser JE, Pangasa M, Turok DK. Efficacy of oral levonorgestrel emergency contraception with same day etonogestrel contraceptive implant: A prospective observational study. Contraception 2024; 131:110344. [PMID: 38008305 PMCID: PMC10872399 DOI: 10.1016/j.contraception.2023.110344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 11/28/2023]
Abstract
OBJECTIVE To determine a 1-month pregnancy rate point estimate and 95% confidence interval for guideline-supported, same-day initiation of an etonogestrel implant plus oral levonorgestrel emergency contraception. STUDY DESIGN In this single-arm, prospective observational study, all emergency contraception clients who presented to four Planned Parenthood Association of Utah clinics from February 2021 to March 2023 received information about oral levonorgestrel with same-day etonogestrel implant insertion. Participants were ≤35 years and reported unprotected intercourse within 5 days with negative pregnancy testing. The primary outcome measure was a 1-month home pregnancy test. We calculated the efficacy using a test of proportions with Yates continuity correction. RESULTS A total of 160 emergency contraception clients (7.6% of 2106 approached) enrolled and 153 had 1-month pregnancy outcomes. A positive pregnancy test occurred in 2 participants resulting in an overall pregnancy rate of 1.32% (95% confidence interval 0.23%-5.19%). Ultrasound gestational dating assigned conception of the first pregnancy to 8 days before enrollment. For the second pregnancy, ultrasound dating designated conception at 5 days prior to enrollment. Limiting the efficacy rate to the single pregnancy that occurred within 5 days of unprotected intercourse, we report a pregnancy rate of 0.66% (95% confidence interval 0.03%-4.19%). CONCLUSIONS In this observational study of emergency contraception clients selecting oral levonorgestrel with same-day etonogestrel implant, we identified a pregnancy rate within the established range of oral emergency contraception methods alone. IMPLICATIONS Clients presenting for emergency contraception may also desire ongoing highly-effective contraception, yet current clinical guidelines serve as a barrier to same-day method initiation for the etonogestrel implant and other hormonal methods. Improving access to contraceptive method initiation will reduce the ongoing risk of unwanted pregnancy for this population. CLINICAL TRIAL REGISTRATION Clinicaltrials.gov NCT04678817; registered 12/16/20.
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Affiliation(s)
- Lori M Gawron
- ASCENT Center for Reproductive Health, Family Planning Division, Department of Obstetrics and Gynecology, University of Utah School of Medicine, Salt Lake City, UT, United States.
| | - Corinne D Sexsmith
- ASCENT Center for Reproductive Health, Family Planning Division, Department of Obstetrics and Gynecology, University of Utah School of Medicine, Salt Lake City, UT, United States
| | - Gentry Carter
- ASCENT Center for Reproductive Health, Family Planning Division, Department of Obstetrics and Gynecology, University of Utah School of Medicine, Salt Lake City, UT, United States
| | - Jennifer E Kaiser
- ASCENT Center for Reproductive Health, Family Planning Division, Department of Obstetrics and Gynecology, University of Utah School of Medicine, Salt Lake City, UT, United States
| | - Misha Pangasa
- ASCENT Center for Reproductive Health, Family Planning Division, Department of Obstetrics and Gynecology, University of Utah School of Medicine, Salt Lake City, UT, United States
| | - David K Turok
- ASCENT Center for Reproductive Health, Family Planning Division, Department of Obstetrics and Gynecology, University of Utah School of Medicine, Salt Lake City, UT, United States
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Rudzinski P, Lopuszynska I, Pazik D, Adamowicz D, Jargielo A, Cieslik A, Kosieradzka K, Stanczyk J, Meliksetian A, Wosinska A. Emergency contraception - A review. Eur J Obstet Gynecol Reprod Biol 2023; 291:213-218. [PMID: 37922775 DOI: 10.1016/j.ejogrb.2023.10.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 10/21/2023] [Accepted: 10/30/2023] [Indexed: 11/07/2023]
Abstract
Emergency contraception (EC), or postcoital contraception, is a therapy aimed at preventing unintended pregnancy after an act of unprotected or under-protected sexual intercourse. Options include both emergency contraceptive pills (most commonly containing levonorgestrel or ulipristal acetate) and insertion of an intrauterine device. The aim of this paper is to summarize current evidence surrounding the use of emergency contraceptives and to present an evidence-based approach to EC provision. Emergency contraception is a safe and effective option in preventing unwanted pregnancy, irrespective of age, weight, or breastfeeding status. Efforts should be made to increase their availability, as well as knowledge of these methods, both among patients and healthcare providers.
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Affiliation(s)
- Patryk Rudzinski
- Independent Public Clinical Hospital Named After Prof. W. Orłowski of the Centre for Postgraduate Medical Education, Warsaw, Poland.
| | - Inga Lopuszynska
- The National Institute of Medicine of the Ministry of Interior and Administration, Warsaw, Poland
| | - Dorota Pazik
- Independent Public Clinical Hospital Named After Prof. W. Orłowski of the Centre for Postgraduate Medical Education, Warsaw, Poland
| | - Dominik Adamowicz
- University Clinical Centre of the Medical University of Warsaw, Warsaw, Poland
| | - Anna Jargielo
- Military Institute of Medicine - National Research Institute, Warsaw, Poland
| | | | | | - Justyna Stanczyk
- National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland
| | - Astrik Meliksetian
- The National Institute of Medicine of the Ministry of Interior and Administration, Warsaw, Poland
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Agyemang N, Scarsi KK, Baker P, Smeaton LM, Podany AT, Olefsky M, Woolley E, Barr E, Pham M, Mawlana S, Supparatpinyo K, Gatechompol S, Jalil EM, Gadama L, Badal-Faesen S, Van Schalkwyk M, Kayama C, Belaunzaran-Zamudio PF, Godfrey C, Cohn SE, Mngqibisa R, Haas DW. Pharmacogenetic interactions of efavirenz or rifampin and isoniazid with levonorgestrel emergency contraception during treatment of HIV or tuberculosis. Pharmacogenet Genomics 2023; 33:126-135. [PMID: 37306344 PMCID: PMC10309098 DOI: 10.1097/fpc.0000000000000501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/16/2023] [Indexed: 06/13/2023]
Abstract
OBJECTIVE In AIDS Clinical Trials Group study A5375, a pharmacokinetic trial of levonorgestrel emergency contraception, double-dose levonorgestrel (3 mg, versus standard dose 1.5 mg) offset the induction effects of efavirenz or rifampin on plasma levonorgestrel exposure over 8 h post-dose (AUC 0-8h ). We characterized the pharmacogenetics of these interactions. METHODS Cisgender women receiving efavirenz- or dolutegravir-based HIV therapy, or on isoniazid-rifampin for tuberculosis, were followed after a single oral dose of levonorgestrel. Linear regression models, adjusted for BMI and age, characterized associations of CYP2B6 and NAT2 genotypes (which affect plasma efavirenz and isoniazid exposure, respectively) with levonorgestrel pharmacokinetic parameters. RESULTS Of 118 evaluable participants, 17 received efavirenz/levonorgestrel 1.5 mg, 35 efavirenz/levonorgestrel 3 mg, 34 isoniazid-rifampin/levonorgestrel 3 mg, and 32 (control group) dolutegravir/levonorgestrel 1.5 mg. There were 73 Black and 33 Asian participants. Regardless of genotype, women on efavirenz and isoniazid-rifampin had higher levonorgestrel clearance. In the efavirenz/levonorgestrel 3 mg group, CYP2B6 normal/intermediate metabolizers had levonorgestrel AUC 0-8h values similar to controls, while CYP2B6 poor metabolizers had AUC 0-8h values of 40% lower than controls. In the isoniazid-rifampin group, NAT2 rapid/intermediate acetylators had levonorgestrel AUC 0-8h values similar to controls, while NAT2 slow acetylators had AUC 0-8h values 36% higher than controls. CONCLUSION CYP2B6 poor metabolizer genotypes exacerbate the efavirenz-levonorgestrel interaction, likely by increased CYP3A induction with higher efavirenz exposure, making the interaction more difficult to overcome. NAT2 slow acetylator genotypes attenuate the rifampin-levonorgestrel interaction, likely by increased CYP3A inhibition with higher isoniazid exposure.
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Affiliation(s)
- Nana Agyemang
- Tufts University School of Medicine, Boston, Massachusetts
| | - Kimberly K. Scarsi
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska
| | - Paxton Baker
- Vanderbilt Technologies for Advanced Genomics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Laura M. Smeaton
- Center for Biostatistics in AIDS Research, Harvard TH Chan School of Public Health; Boston, Massachusetts
| | - Anthony T. Podany
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska
| | - Maxine Olefsky
- Center for Biostatistics in AIDS Research, Harvard TH Chan School of Public Health; Boston, Massachusetts
| | | | - Elizabeth Barr
- Office of Research on Women’s Health, National Institutes of Health, Bethesda, Maryland, USA
| | - Michelle Pham
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska
| | - Sajeeda Mawlana
- Enhancing Care Foundation, Wentworth Hospital, Durban, South Africa
| | | | | | - Emilia M. Jalil
- Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Brazil
| | - Luis Gadama
- Johns Hopkins Research Project, Blantyre, Malawi
| | - Sharlaa Badal-Faesen
- Clinical HIV Research Unit, Faculty of Health Sciences, University of Witwatersrand, Johannesburg
| | - Marije Van Schalkwyk
- Family Center for Research with Ubuntu, Division of Infectious Diseases, Department of Medicine, Stellenbosch University, Cape Town, South Africa
| | - Cecelia Kayama
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | | | - Catherine Godfrey
- Office of the Global AIDS Coordinator, Department of State, Washington, DC
| | - Susan E. Cohn
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Rosie Mngqibisa
- Enhancing Care Foundation, Wentworth Hospital, Durban, South Africa
| | - David W. Haas
- Department of Medicine, Vanderbilt University School of Medicine
- Department of Internal Medicine, Meharry Medical College, Nashville, Tennessee, USA
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Scarsi KK, Smeaton LM, Podany AT, Olefsky M, Woolley E, Barr E, Pham M, Mawlana S, Supparatpinyo K, Gatechompol S, Jalil EM, Gadama L, Badal-Faesen S, Belaunzaran-Zamudio PF, Godfrey C, Cohn SE, Mngqibisa R. Pharmacokinetics of dose-adjusted levonorgestrel emergency contraception combined with efavirenz-based antiretroviral therapy or rifampicin-containing tuberculosis regimens. Contraception 2023; 121:109951. [PMID: 36641094 PMCID: PMC10187685 DOI: 10.1016/j.contraception.2023.109951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 12/09/2022] [Accepted: 12/19/2022] [Indexed: 01/13/2023]
Abstract
OBJECTIVES To determine if double-dose levonorgestrel emergency contraception (EC) in combination with efavirenz or rifampicin, 2 drugs known to decrease levonorgestrel exposure, resulted in similar pharmacokinetics compared to standard-dose levonorgestrel EC without drug-drug interactions. STUDY DESIGN We conducted a phase 2, open-label, multicenter, partially randomized, 4 parallel group trial in pre-menopausal females ≥16 years old without an indication for EC and not on hormonal contraception. Participants on dolutegravir-based antiretroviral therapy (ART) received levonorgestrel 1.5 mg (control group); those on rifampicin-containing tuberculosis therapy received levonorgestrel 3 mg; those on efavirenz-based ART were randomized 1:2 to levonorgestrel 1.5 mg or 3 mg. Plasma was collected through 48 hours post-dose to assess levonorgestrel pharmacokinetics. Area under the concentration-time curve (AUC) over 8 hours was the primary outcome. Levonorgestrel pharmacokinetic parameters were compared between groups using geometric mean ratios (GMR) with 90% confidence intervals. RESULTS The median (Q1, Q3) age for all participants (n = 118) was 34 (27, 41) years and BMI was 23.2 (20, 26.3) kg/m2. Participants receiving levonorgestrel 1.5mg plus efavirenz (n = 17) had 50% lower AUC0-8h compared to the control group (n = 32) [0.50 (0.40, 0.62)]. Participants receiving levonorgestrel 3 mg had a similar AUC0-8h when receiving either efavirenz (n = 35) [0.99 (0.81, 1.20)] or rifampicin (n = 34) [1.16 (0.99, 1.36)] compared to control. Levonorgestrel 3 mg resulted in similar or higher maximum concentration with either efavirenz [1.17 (0.96, 1.41)] or rifampicin [1.27 (1.09, 1.49)] compared to the control group. CONCLUSIONS Doubling the dose of levonorgestrel EC successfully increased levonorgestrel exposure over the first 8 hours in participants receiving either efavirenz-based ART or rifampicin-containing tuberculosis therapy. IMPLICATIONS Adjusting levonorgestrel emergency contraception from 1.5 mg to 3 mg improves levonorgestrel pharmacokinetic exposure in participants receiving either efavirenz-based antiretroviral regimens or rifampicin-containing tuberculosis therapy. These data support guideline recommendations to double the dose of levonorgestrel emergency contraception in persons on medications that decrease levonorgestrel exposure by inducing levonorgestrel metabolism.
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Affiliation(s)
- Kimberly K Scarsi
- College of Pharmacy, University of Nebraska Medical Center; Omaha, NE, United States.
| | - Laura M Smeaton
- Center for Biostatistics in AIDS Research, Harvard TH Chan School of Public Health; Boston, MA, United States
| | - Anthony T Podany
- College of Pharmacy, University of Nebraska Medical Center; Omaha, NE, United States
| | - Maxine Olefsky
- Center for Biostatistics in AIDS Research, Harvard TH Chan School of Public Health; Boston, MA, United States
| | | | - Elizabeth Barr
- Office of Research on Women's Health, National Institutes of Health, Bethesda, MD, United States
| | - Michelle Pham
- College of Pharmacy, University of Nebraska Medical Center; Omaha, NE, United States
| | - Sajeeda Mawlana
- Enhancing Care Foundation, Wentworth Hospital, Durban, South Africa
| | | | | | - Emilia M Jalil
- Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Brazil
| | - Luis Gadama
- Johns Hopkins Research Project, Blantyre, Malawi
| | - Sharlaa Badal-Faesen
- Clinical HIV Research Unit, Faculty of Health Sciences, University of Witwatersrand, South Africa
| | - Pablo F Belaunzaran-Zamudio
- Contractor, Division of AIDS, National Institute of Allergy and Infectious Diseases; Bethesda, MD, United States
| | | | - Susan E Cohn
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Rosie Mngqibisa
- Enhancing Care Foundation, Wentworth Hospital, Durban, South Africa
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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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Шайдуллина МР, Валеева ФВ, Субханкулова АФ, Хусиева ПА. [Contraception in adolescents with obesity and diabetes mellitus]. PROBLEMY ENDOKRINOLOGII 2022; 68:137-145. [PMID: 36689719 PMCID: PMC9939967 DOI: 10.14341/probl12760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/01/2022] [Accepted: 08/10/2022] [Indexed: 01/25/2023]
Abstract
Today most adolescents have their first sexual experience at the age of 15-19. However, only 44% of girls and young women (15-24 years old) report about contraception at that moment. A decision on pregnancy in adolescence is a difficult choice and any scenario may cause serious medical and social problems. Complications after an artificial abortion have a negative impact on a woman's fertility. Diabetes mellitus type 1 and arterial hypertension accompanied with obesity within the metabolic syndrome are defined by the World Health Organization (WHO) as diseases, which increase risk of an unplanned pregnancy. The article consoders problems of interaction of a doctor and a teenage girl with endocrinopathy, when discussing her sexual health, the analysis of the literature reflecting the influence of contraception on the course of the underlying pathology is presented. The authors formed a list of drugs acceptable for use in diabetes and obesity based on assessment of risks and preferences from the use of different methods of fertility control. The work contains information about the procedure of starting contraception, the rules of future dynamic monitoring of the patient.
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Affiliation(s)
- М. Р. Шайдуллина
- Казанский государственный медицинский университет; Детская республиканская клиническая больница
| | | | | | - П. А. Хусиева
- ГАУЗ «Детская республиканская клиническая больница» Минздрава Республики Татарстан
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9
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Double Dosing Levonorgestrel-Based Emergency Contraception for Individuals With Obesity: A Randomized Controlled Trial. Obstet Gynecol 2022; 140:48-54. [PMID: 35849455 PMCID: PMC9205298 DOI: 10.1097/aog.0000000000004717] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/16/2021] [Indexed: 12/30/2022]
Abstract
Increasing the dose of levonorgestrel-containing emergency contraception from 1.5 mg to 3 mg did not improve rates of ovulation delay in individuals with obesity. OBJECTIVE: To assess whether dose escalation (ie, doubling the dose) of emergency contraception that contains levonorgestrel (LNG) improves pharmacodynamic outcomes in individuals with obesity. METHODS: We enrolled healthy, reproductive-age individuals with regular menstrual cycles, body mass index (BMI) higher than 30, and weight at least 176 lbs in a randomized pharmacodynamic study. After confirming ovulation (luteal progesterone level greater than 3 ng/mL), we monitored participants with transvaginal ultrasonography and blood sampling for progesterone, luteinizing hormone, and estradiol every other day until a dominant follicle measuring 15 mm or greater was visualized. At that point, participants received either oral emergency contraception with LNG 1.5 mg or 3 mg (double dose) and returned for daily monitoring for up to 7 days. Our primary outcome was the difference in the proportion of participants with no follicle rupture 5 days postdosing (yes or no) between groups. The study had 80% power to detect a 30% difference in the proportion of cycles with at least a 5-day delay in follicle rupture (50% decrease). RESULTS: A total of 70 enrolled and completed study procedures. The two groups had similar baseline demographics (mean age 28 years, BMI 38). We found no difference between groups in the proportion of participants without follicle rupture more than 5 days post–LNG dosing (LNG 1.5 mg: 18/35 [51.4%]; LNG 3.0 mg: 24/35 [68.6%], P=.14). Among participants with follicle rupture before 5 days, the time to rupture did not differ between groups (day at 75% probability of no rupture is day 2 for both groups). CONCLUSION: Individuals with higher BMIs and weights experience a higher risk of failure of emergency contraception with LNG and exhibit an altered pharmacokinetic profile. However, the simple strategy of doubling the dose does not appear to be an effective intervention to improve outcomes. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, 02859337.
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10
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Westhoff CL, Archer DF, Barnhart K, Darney P, Gilliam M, Jensen J, Nelson A, Teal S, Thomas M, Hu J, Brown J, Blithe DL. Evaluation of ovulation and safety outcomes in a multi-center randomized trial of three 84-day ulipristal acetate regimens. Contraception 2022; 112:54-60. [DOI: 10.1016/j.contraception.2022.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/31/2022] [Accepted: 04/06/2022] [Indexed: 11/03/2022]
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11
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Westhoff CL, Guo H, Wang Z, Hibshoosh H, Polaneczky M, Pike MC, Ha R. The progesterone-receptor modulator, ulipristal acetate, drastically lowers breast cell proliferation. Breast Cancer Res Treat 2022; 192:321-329. [PMID: 35015210 PMCID: PMC10088437 DOI: 10.1007/s10549-021-06503-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 12/29/2021] [Indexed: 11/02/2022]
Abstract
PURPOSE The proliferation of breast epithelial cells increases during the luteal phase of the menstrual cycle, when they are exposed to progesterone, suggesting that ulipristal acetate, a selective progestin-receptor modulator (SPRM), may reduce breast cell proliferation with potential use in breast cancer chemoprevention. METHODS Women aged 18-39 were randomized 1:1 to ulipristal 10-mg daily or to a combination oral contraceptive (COC) for 84 days. Participants underwent a breast biopsy and breast MRI at baseline and at end of study treatment. Proliferation of breast TDLU cells was evaluated by Ki67 immunohistochemical stain. We evaluated the breast MRIs for background parenchymal enhancement (BPE). All slides and images were masked for outcome evaluation. RESULTS Twenty-eight treatment-compliant participants completed the study; 25 of whom had evaluable Ki67 results at baseline and on-treatment. From baseline to end of treatment, Ki67 % positivity (Ki67%+) decreased a median of 84% in the ulipristal group (N = 13; 2-sided p (2p) = 0.040) versus a median increase of 8% in the COC group (N = 12; 2p = 0.85). Median BPE scores decreased from 3 to 1 in the ulipristal group (p = 0.008) and did not decrease in the COC group. CONCLUSION Ulipristal was associated with a major decrease in Ki67%+ and BPE. Ulipristal would warrant further investigation for breast cancer chemoprevention were it not for concerns about its liver toxicity. Novel SPRMs without liver toxicity could provide a new approach to breast cancer chemoprevention. TRIAL REGISTRATION NCT02922127, 4 October 2016.
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Affiliation(s)
- Carolyn L Westhoff
- Department of Obstetrics and Gynecology, Columbia University Irving Medical Center, PH 16-69, 630 West 168th Street, New York, NY, 10032, USA.
| | - Hua Guo
- Department of Pathology, Columbia University Irving Medical Center, New York, NY, USA
| | - Zhong Wang
- Department of Pathology, Columbia University Irving Medical Center, New York, NY, USA
| | - Hanina Hibshoosh
- Department of Pathology, Columbia University Irving Medical Center, New York, NY, USA
| | - Margaret Polaneczky
- Department of Obstetrics and Gynecology, Weill-Cornell Medical Center, New York, NY, USA
| | - Malcolm C Pike
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Richard Ha
- Department of Radiology, Columbia University Irving Medical Center, New York, NY, USA
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12
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Merino PM, Codner E. Contraception for Adolescents and Young Women with Type 2 Diabetes-Specific Considerations. Curr Diab Rep 2022; 22:77-84. [PMID: 35150410 DOI: 10.1007/s11892-022-01448-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/22/2021] [Indexed: 11/03/2022]
Abstract
PURPOSE OF REVIEW This article reviews how to address contraception in young women with type 2 diabetes (T2D). The presence of obesity and comorbidities associated with insulin resistance increases the risk of thromboembolic disease and adverse cardiovascular outcomes. RECENT FINDINGS Recent studies have shown that adolescents with T2D are at high risk of unintended pregnancy with poor outcomes for the mother and offspring. Adolescents with T2D without severe obesity, micro- or macrovascular disease, or other cardiovascular risk factors can use any contraceptive method. However, only nonhormonal or progestin-only methods may be used when morbid obesity, severe hypertension, micro- or macrovascular disease, or multiple cardiovascular risk factors are present. The medical team must provide preconceptional counseling and contraception to reduce adolescent pregnancies in young women with T2D. Progestin-only or nonhormonal long-acting reversible contraception (LARC) should be recommended for women with T2D with compliance issues or adverse cardiovascular risk profiles.
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Affiliation(s)
- Paulina M Merino
- Institute of Maternal and Child Research, School of Medicine, University of Chile, Santa Rosa 1234, 8360160, Santiago, Chile
| | - Ethel Codner
- Institute of Maternal and Child Research, School of Medicine, University of Chile, Santa Rosa 1234, 8360160, Santiago, Chile.
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13
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Duijkers IJ, Klipping C, Rautenberg T, Schug BS, Kochhar PS, Osterwald H, Oettel M. Effect on ovarian activity and ovulation inhibition of different oral dosages of levonorgestrel. Contraception 2022; 110:6-15. [DOI: 10.1016/j.contraception.2022.01.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 11/28/2022]
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14
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Bick AJ, Louw-du Toit R, Skosana SB, Africander D, Hapgood JP. Pharmacokinetics, metabolism and serum concentrations of progestins used in contraception. Pharmacol Ther 2021; 222:107789. [PMID: 33316287 PMCID: PMC8122039 DOI: 10.1016/j.pharmthera.2020.107789] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 11/24/2020] [Indexed: 02/07/2023]
Abstract
Many different forms of hormonal contraception are used by millions of women worldwide. These contraceptives differ in the dose and type of synthetic progestogenic compound (progestin) used, as well as the route of administration and whether or not they contain estrogenic compounds. There is an increasing awareness that different forms of contraception and different progestins have different side-effect profiles, in particular their cardiovascular effects, effects on reproductive cancers and susceptibility to infectious diseases. There is a need to develop new methods to suit different needs and with minimal risks, especially in under-resourced areas. This requires a better understanding of the pharmacokinetics, metabolism, serum and tissue concentrations of progestins used in contraception as well as the biological activities of progestins and their metabolites via steroid receptors. Here we review the current knowledge on these topics and identify the research gaps. We show that there is a paucity of research on most of these topics for most progestins. We find that major impediments to clear conclusions on these topics include a lack of standardized methodologies, comparisons between non-parallel clinical studies and variability of data on serum concentrations between and within studies. The latter is most likely due, at least in part, to differences in intrinsic characteristics of participants. The review highlights the importance of insight on these topics in order to provide the best contraceptive options to women with minimal risks.
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Affiliation(s)
- Alexis J Bick
- Department of Molecular and Cell Biology, University of Cape Town, Private Bag X3, Rondebosch 7700, South Africa
| | - Renate Louw-du Toit
- Department of Biochemistry, Stellenbosch University, Stellenbosch 7602, South Africa
| | - Salndave B Skosana
- Department of Molecular and Cell Biology, University of Cape Town, Private Bag X3, Rondebosch 7700, South Africa
| | - Donita Africander
- Department of Biochemistry, Stellenbosch University, Stellenbosch 7602, South Africa
| | - Janet P Hapgood
- Department of Molecular and Cell Biology, University of Cape Town, Private Bag X3, Rondebosch 7700, South Africa; Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa.
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15
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Têtu C, Gaubil-Kaladjian I, Barbe C, Diaz Cives A, Barrois M, Bertin E, Delemer B, Fèvre A. [Contraception after bariatric surgery: Importance of a specific gynecologic course]. ACTA ACUST UNITED AC 2021; 49:709-715. [PMID: 33766790 DOI: 10.1016/j.gofs.2021.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Indexed: 11/27/2022]
Affiliation(s)
- C Têtu
- Service d'endocrinologie diabète nutrition, CHU de Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France.
| | - I Gaubil-Kaladjian
- Service d'endocrinologie diabète nutrition, CHU de Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France; Centre spécialisé de l'obésité de Champagne Ardenne (CSO CA), CHU Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France
| | - C Barbe
- CHU de Reims, Unité d'aide méthodologique, Pôle recherche et santé publique, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France
| | - A Diaz Cives
- Centre spécialisé de l'obésité de Champagne Ardenne (CSO CA), CHU Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France; Service de chirurgie générale digestive et endocrinienne, CHU de Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France
| | - M Barrois
- Service d'endocrinologie diabète nutrition, CHU de Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France; Centre spécialisé de l'obésité de Champagne Ardenne (CSO CA), CHU Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France
| | - E Bertin
- Service d'endocrinologie diabète nutrition, CHU de Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France; Centre spécialisé de l'obésité de Champagne Ardenne (CSO CA), CHU Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France
| | - B Delemer
- Service d'endocrinologie diabète nutrition, CHU de Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France
| | - A Fèvre
- Service d'endocrinologie diabète nutrition, CHU de Reims, Hôpital Robert-Debré, avenue du Général-Koenig, 51092 Reims cedex, France
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Kardos L. Levonorgestrel emergency contraception and bodyweight: are current recommendations consistent with historic data? J Drug Assess 2020; 9:37-42. [PMID: 32166043 PMCID: PMC7054976 DOI: 10.1080/21556660.2020.1725524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 01/29/2020] [Indexed: 12/30/2022] Open
Abstract
Objective To assess the consistency between current recommendations that women of body weight (BW) or body mass index (BMI) above a defined threshold should use a double dose of levonorgestrel (LNG) for emergency contraception (EC) and observed frequency of pregnancy in historic studies of single-dose LNG for EC. Methods We applied double dose recommendation criteria to individual participant level data from three historic studies of the WHO’s Human Reproductive Program to categorize subjects into single dose-recommended (SDR) and double dose-recommended (DDR) groups and compared the latter to the former using pregnancy risk ratios (RR). Results A total of 5859 subjects with 59 pregnancies made up the full dataset. Depending on the recommendation source (USA or UK) and inclusion or exclusion of heavy outlier data, DDR criteria were satisfied by 3.7% to 18.9% of subjects. Pregnancy proportions were mostly lower in DDR than in SDR subjects, with risk ratio estimates ranging from zero to 1.17, exceeding unity only when the USA criterion was used with outliers included. DDR subjects had a significantly lower relative frequency of pregnancy than SDR subjects when the UK criteria were used and outliers excluded (RR = 0.17 [95% CI: 0.04; 0.70], p = .0024). Conclusions Our findings are consistent with the notion that there is no real loss of pregnancy control with single-dose LNG-EC in high-BMI and/or high-BW users, and today’s double dose recommendations were prematurely issued and remain questionable.
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Affiliation(s)
- László Kardos
- Department of Infectology, University of Debrecen, Debrecen, Hungary
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17
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Cleland K, Wagner B, Smith NK, Trussell J. "My BMI is too high for Plan B." A changing population of women seeking ulipristal acetate emergency contraception online. Women Health 2020; 60:241-248. [PMID: 31284850 PMCID: PMC6946884 DOI: 10.1080/03630242.2019.1635560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 05/31/2019] [Accepted: 06/01/2019] [Indexed: 12/30/2022]
Abstract
Emergency contraceptive (EC) pills may be less effective for women with higher body mass index (BMI), but little is known about public response to the fact that EC may lose efficacy as weight increases. In November 2013, European authorities changed the label for a levonorgestrel EC product to warn of a reduction in effectiveness for women with higher BMI, garnering significant media coverage in the United States. Ulipristal acetate (UPA) EC may be more effective than levonorgestrel for women with BMI levels designated as obese. Among 8,019 women who received UPA from the online pharmacy KwikMed from 2011 to 2015 and self-reported their height, weight and reasons for seeking UPA online, we analyzed changes in the proportion of women in different BMI categories before and after the label change. For the 25 month-period after the label change, the proportion of women in the obese category rose by 26.7 percentage points relative to the 35 months before (B = 0.2665, p < .01). Mean BMI (25.5 versus 29.4, p < .001) and average weight (148.6 pounds versus 175.5 pounds, p < .001) of users were higher after the label change. Some women appear to have acted on the information that EC efficacy may be associated with body weight.
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Affiliation(s)
| | - Brandon Wagner
- Office of Population Research, Princeton University
- Texas Tech University
| | | | - James Trussell
- Office of Population Research, Princeton University
- Dr. Trussell is now deceased
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Abstract
Although pregnancy and abortion rates have declined in adolescents, unintended pregnancies remain unacceptably high in this age group. The use of highly effective methods of contraception is one of the pillars of unintended pregnancy prevention and requires a shared decision making process within a rights based framework. Adolescents are eligible to use any method of contraception and long-acting reversible contraceptives, which are “forgettable” and highly effective, may be particularly suited for many adolescents. Contraceptive methods may have additional non-contraceptive benefits that address other needs or concerns of the adolescent. Dual method use should be encouraged among adolescents for the prevention of both unintended pregnancies and sexually transmitted infections. Health care providers have an important role to play in ensuring that adolescents have access to high quality and non-judgmental reproductive health care services and contraceptive methods in adolescent-friendly settings that recognize the unique biopsychosocial needs of the adolescent.
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Affiliation(s)
- Nicole Todd
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, Canada
| | - Amanda Black
- Department of Obstetrics and Gynecology, University of Ottawa; and The Ottawa Hospital Research Institute, Ottawa, Canada
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19
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Wagner BG, Cleland K, Batur P, Wu J, Rothberg MB. Emergency contraception: Links between providers' counseling choices, prescribing behaviors, and sociopolitical context. Soc Sci Med 2019; 242:112588. [DOI: 10.1016/j.socscimed.2019.112588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 09/20/2019] [Accepted: 10/03/2019] [Indexed: 12/30/2022]
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Tyson NA. Reproductive Health: Options, Strategies, and Empowerment of Women. Obstet Gynecol Clin North Am 2019; 46:409-430. [PMID: 31378285 DOI: 10.1016/j.ogc.2019.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Contraception is paramount to the overall health and longevity of women. Most women in the United States use birth control in their reproductive lifetimes. All options should be available and easily accessible to permit individualization and optimization of chosen methods. Current contraceptive methods available in the United States are reviewed. Emergency contraception, contraception in the postpartum period, and strategies to tailor methods to those affected by partner violence are also addressed. Tables and flow charts help providers and patients compare various contraceptive methods, optimize the start of a method, and identify resources for addressing safety in those with underlying medical conditions.
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Affiliation(s)
- Nichole A Tyson
- Department of Obstetrics and Gynecology, The Permanente Medical Group, 1600 Eureka Road, Medical Office Building C, 3rd Floor, Roseville, CA 95661, USA; UC Davis Medical Center, Sacramento, CA, USA.
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21
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Michie L, Cameron ST. Emergency contraception and impact on abortion rates. Best Pract Res Clin Obstet Gynaecol 2019; 63:111-119. [PMID: 31362908 DOI: 10.1016/j.bpobgyn.2019.06.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/21/2019] [Accepted: 06/27/2019] [Indexed: 12/12/2022]
Abstract
Emergency contraception (EC) is a drug or a device that is taken after sexual intercourse to prevent unintended pregnancy. The most effective EC is the copper-bearing intrauterine device (Cu-IUD), but oral EC methods are more commonly used and include a single dose of either levonorgestrel (1.5 mg) or ulipristal acetate (30 mg). Although all EC methods are extremely safe, access to EC is often limited due to prevailing misconceptions over how EC works. Although EC can prevent unintended pregnancy for an individual woman, it has failed to make an impact on abortion rates at a population level. This may be because it is not used after every episode of unprotected sex and because existing oral EC methods are only effective if used before ovulation. Future strategies around EC should focus on maximising uptake of Cu-IUD, facilitating initiation of effective regular contraception after EC and developing a more effective oral EC.
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Affiliation(s)
- L Michie
- The Gatehouse, NHS Ayrshire and Arran, Ayrshire Central Hospital, United Kingdom.
| | - S T Cameron
- Chalmers Sexual and Reproductive Health Centre, NHS Lothian, 2 A Chalmers Street, Edinburgh, EH3 9ES, United Kingdom; Obstetrics and Gynaecology, University of Edinburgh, United Kingdom.
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22
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Lete I, Doval JL, Pérez-Campos E, Alonso MJ, Sellers G, Sánchez-Borrego R. Prevention of unintended pregnancies by using emergency contraception: the differences between levonorgestrel and ulipristal acetate. A theoretical model using data from a survey on the use of emergency contraception in Spain, 2017. Gynecol Endocrinol 2019; 35:582-585. [PMID: 30614295 DOI: 10.1080/09513590.2018.1559286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Objective: To estimate the differences in unintended pregnancies avoided using either levonorgestrel (LNG) or ulipristal acetate (UPA) emergency contraception (EC). Design: Cross-sectional study. Setting: Survey carried out in Spain. Participants: 1000 Spanish women reporting unprotected sex in 2017. Main measurements: EC use, reasons for not using EC, calculation of the number of unintended pregnancies avoided. Results: 39% of Spanish women having had unprotected sex used EC. 61% of those women did not use EC and 11% did not know the existence of this resource. In 2017 the use of EC prevented 101,271 unintended pregnancies. If instead of using LNG every woman had used UPA another 15,979 additional pregnancies could have been prevented. Conclusions: If all Spanish women having unprotected sex used EC we could expect a significant decrease in the number of unintended pregnancies and abortions. Using UPA instead of LNG would have a greater impact on that reduction with the corresponding benefit for women and society as a whole.
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Affiliation(s)
- Iñaki Lete
- a Faculty of Medicine, University of the Basque Country, Obstetrics and Gynaecology Clinical Management Unit , Araba University Hospital , Vitoria , Spain
| | - José Luis Doval
- b Obstetrics and Gynaecology Department , Ourense Hospital Complex , Ourense , Spain
| | - Ezequiel Pérez-Campos
- c Obstetrics and Gynaecology Department , Associate University Hospital of Requena , Requena , Spain
| | - María Jesús Alonso
- d Sexual Orientation Centre for Young People, Andalusian Health Service , Malaga , Spain
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Kardos L, Magyar G, Schváb E, Luczai E. Levonorgestrel emergency contraception and bodyweight. Curr Med Res Opin 2019; 35:1149-1155. [PMID: 30569769 DOI: 10.1080/03007995.2018.1560250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objectives: Emergency contraception (EC) provides an opportunity to avoid an unwanted pregnancy following unprotected sexual intercourse (UPSI), failure of a regular contraceptive method, or after sexual assault. Two main methods are currently available: oral pills or the copper-T intrauterine device. In recent years there has been some debate regarding the efficacy of oral therapy in obese women. In this brief commentary we review new evidence, published after the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) referral of 2014, relating to the effect of obesity on the pharmacokinetics and clinical efficacy of levonorgestrel EC in light of some of the concerns that have been raised. Methods: A PubMed literature search ("levonorgestrel" and "emergency contraception") was conducted between 1 January 2005 to 31 March 2018; results from the main clinical trials are discussed. Additional literature known to the authors and identified from the reference lists of cited publications was included. Results: Overall, it should be noted that, in studies which determined pregnancy rates across different weight or BMI categories, the overall pregnancy rate was low (1-2%) and there was no direct evidence that lower levonorgestrel plasma levels contributed to an increased pregnancy rate in obese women. This conclusion was reached by the EMA referral in 2014 and they concluded that emergency contraceptive pills (ECPs) could be taken regardless of body weight or BMI, as soon as possible after UPSI. Since the EMA review, additional evidence has been published regarding this topic. This includes PK data (which can neither support, nor deny the previously submitted meta-analyses during the Article 31 Referral procedure), or re-analyses of the previously submitted data. Conclusions: Evidence published since the EMA referral in 2014 does not change the original conclusions of the agency, which recommended that ECPs could be taken regardless of body weight or BMI, as soon as possible after UPSI.
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Affiliation(s)
- László Kardos
- a Department of Clinical Pharmacology, Infectology and Allergology , Kenézy Gyula Hospital and Clinic , Debrecen , Hungary
| | - Gabriella Magyar
- b Developmental Drug Metabolism & Pharmacokinetics , Gedeon Richter Plc. , Budapest , Hungary
| | - Eszter Schváb
- c Medical Regulatory Department, Directorate of Regulatory Affairs , Gedeon Richter Plc. , Budapest , Hungary
| | - Eva Luczai
- d Medical Affairs , Gedeon Richter Plc. , Budapest , Hungary
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A pilot study of levonorgestrel concentrations and bleeding patterns in women with epilepsy using a levonorgestrel IUD and treated with antiepileptic drugs. Contraception 2019; 99:251-255. [DOI: 10.1016/j.contraception.2018.11.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 11/15/2018] [Accepted: 11/22/2018] [Indexed: 02/06/2023]
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FSRH Guideline (April 2019) Overweight, Obesity and Contraception. BMJ SEXUAL & REPRODUCTIVE HEALTH 2019; 45:1-69. [PMID: 31053605 DOI: 10.1136/bmjsrh-2019-ooc] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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Stowers P, Mestad R. Use of levonorgestrel as emergency contraception in overweight women. Obes Res Clin Pract 2019; 13:180-183. [PMID: 30819646 DOI: 10.1016/j.orcp.2019.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 01/22/2019] [Accepted: 01/29/2019] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Levonorgestrel (LNG) emergency contraception (EC) may have decreased efficacy for women with body mass indices (BMI)≥26kg/m2. This study aims to evaluate the prevalence of LNG EC use and EC counseling among overweight women. METHODS The 2013-2015 dataset from the National Survey of Family Growth was analyzed to determine the proportion of women with BMI≥26kg/m2 who report recent use of LNG EC and EC counseling. RESULTS Overall, 2.4% of respondents reported recent use of LNG EC. Among women using oral LNG for EC, 29.8% of survey participants reported BMI≥26kg/m2. Additionally, 40.2% of women with BMI≥26kg/m2 using oral LNG EC reported having a doctor or medical provider talk to them about emergency contraception within the last 12 months, compared to 18.3% of LNG EC users with BMI<26kg/m2 (p<0.001). CONCLUSIONS Despite recent counseling from clinicians and concerns for decreased efficacy, a significant number of overweight women continue to use LNG for EC. Clinicians should counsel women with BMI≥26kg/m2 on the potential limitations of oral LNG for EC and offer more effective EC methods, including the copper intrauterine device and oral ulipristal acetate.
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Affiliation(s)
- Paris Stowers
- State University of New York Upstate Medical University, Department of Obstetrics and Gynecology, Syracuse, NY, USA.
| | - Renee Mestad
- State University of New York Upstate Medical University, Department of Obstetrics and Gynecology, Syracuse, NY, USA.
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Natavio M, Stanczyk FZ, Molins EAG, Nelson A, Jusko WJ. Pharmacokinetics of the 1.5 mg levonorgestrel emergency contraceptive in women with normal, obese and extremely obese body mass index. Contraception 2019; 99:306-311. [PMID: 30703352 DOI: 10.1016/j.contraception.2019.01.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 12/22/2018] [Accepted: 01/08/2019] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To assess the pharmacokinetics (PK) of levonorgestrel after 1.5 mg oral doses (LNG-EC) in women with normal, obese and extremely obese body mass index (BMI). STUDY DESIGN The 1.5 mg LNG dose was given to healthy, reproductive-age, ovulatory women with normal BMI (mean 22.0), obese (mean 34.4), and extremely obese (mean 46.6 kg/m2) BMI. Total serum LNG was measured over 0 to 96 h by radioimmunoassay while free and bioavailable LNG were calculated. The maximum concentration (Cmax), time to maximum concentration (Tmax), and area under the curve (AUC) of LNG were assessed. Pharmacokinetic parameters calculated included half-life (t1/2), clearance (CL) and volume of distribution (Vss). RESULTS Ten normal-BMI, 11 obese-BMI, 5 extremely obese-BMI women were studied. After LNG-EC, mean total LNG metrics were lower in the obese and extremely obese groups compared to normal (Cmax 10.5 and 10.5 versus 16.2 ng/mL, both p<.01; AUC 208 and 197 versus 360 h × ng/mL, both p<.05). Mean bioavailable LNG Cmax was lower in obese (7.03 ng/mL, p<.05) and extremely obese (7.53 ng/ml, p=.198) compared to normal BMI (9.39 ng/mL). Mean bioavailable LNG AUC values were lower in obese and extremely obese compared to normal (131.6 and 127.5 vs 185.0 h × ng/mL, p<.05 for both). CONCLUSIONS Obese and extremely obese women were exposed to lower total and bioavailable LNG than normal BMI women. IMPLICATIONS Lower 'bioavailable' (free plus albumin bound) LNG AUC in obese women may play a role in the purported reduced efficacy of LNG-EC in obese users.
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Affiliation(s)
- Melissa Natavio
- Department of Obstetrics and Gynecology, Los Angeles, California; Keck School of Medicine, University of Southern California, Los Angeles, California.
| | - Frank Z Stanczyk
- Department of Obstetrics and Gynecology, Los Angeles, California; Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Emilie A G Molins
- Department of Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, New York
| | - Anita Nelson
- Department of Obstetrics and Gynecology, Los Angeles, California; Keck School of Medicine, University of Southern California, Los Angeles, California
| | - William J Jusko
- Department of Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, New York
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Haeger KO, Lamme J, Cleland K. State of emergency contraception in the U.S., 2018. Contracept Reprod Med 2018; 3:20. [PMID: 30202545 PMCID: PMC6123910 DOI: 10.1186/s40834-018-0067-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 06/20/2018] [Indexed: 12/30/2022] Open
Abstract
Emergency contraception is indicated in instances of unprotected sexual intercourse, including reproductive coercion, sexual assault, and contraceptive failure. It plays a role in averting unintended pregnancies due to inconsistent use or non-use of contraception. Options for emergency contraception vary by efficacy as well as accessibility within the U.S. This paper provides an overview of levonorgestrel (Plan B One-Step and generic counterparts), ulipristal acetate (sold as ella), and the copper intrauterine device (IUD, sold as ParaGard), including the mechanisms of action, administration, efficacy, drug interactions, safety, side effects, advantages, and drawbacks. It will also review current misconceptions about emergency contraception and access for subpopulations, including adolescents, immigrants, survivors of sexual assault, rural populations, and military/veteran women. This paper will address barriers such as gaps in knowledge, and financial, health systems, and practice barriers. Continuing areas of research, including the impact of body weight on the efficacy of emergency contraceptive pills and potential interactions between ulipristal acetate and ongoing hormonal contraceptives, are also addressed.
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Affiliation(s)
- Kristin O. Haeger
- Department of Veterans Affairs, Veterans Health Administration, Office of Patient Care Services, Women’s Health Services, 810 Vermont Ave., NW, Washington, DC, 20420 USA
| | - Jacqueline Lamme
- Department of Obstetrics & Gynecology, U.S. Naval Hospital Okinawa, Okinawa, Japan
| | - Kelly Cleland
- Office of Population Research, Princeton University, 218 Wallace Hall, Princeton, NJ 08544 USA
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Stanczyk FZ, Burke AE, Hong KM, Archer DF. Morbid obesity: potential effects of hormonal contraception. Contraception 2018; 98:174-180. [PMID: 29777662 DOI: 10.1016/j.contraception.2018.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 05/06/2018] [Accepted: 05/07/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Frank Z Stanczyk
- Departments of Obstetrics and Gynecology, and Preventive Medicine, Keck School of Medicine of USC, Los Angeles, CA 90033, USA.
| | - Anne E Burke
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD 21224, USA
| | - Kurt M Hong
- Center of Clinical Nutrition and Applied Health Research, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - David F Archer
- Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA 23507, USA
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30
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Westhoff CL, Chen BA, Jensen JT, Barnhart K, Thomas M, Teal S, Blithe D. Phase I/II pharmacokinetic and pharmacodynamic evaluation of two levonorgestrel-only contraceptive patches in a multicenter randomized trial. Contraception 2018; 98:S0010-7824(18)30143-4. [PMID: 29679590 DOI: 10.1016/j.contraception.2018.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 04/06/2018] [Accepted: 04/08/2018] [Indexed: 12/30/2022]
Abstract
OBJECTIVES To evaluate the pharmacokinetic and pharmacodynamic effects of two novel levonorgestrel (LNG)-only contraceptive patches. STUDY DESIGN This multi-center Phase I/II trial randomized participants to use a 7-day transdermal patch designed to deliver a 40 mcg or 75 mcg daily LNG dose for 11 consecutive weeks; randomization was stratified by body mass index (BMI) <32 or 32-40 kg/m2. Evaluations occurred twice weekly for 5 weeks, then once weekly with supplemental visits for participants reporting a urinary LH surge. We evaluated pharmacokinetics via the weekly trough serum LNG concentrations (≥180 pg/mL considered therapeutic). The primary pharmacodynamic outcomes were cervical mucus and ovulation, evaluated using modified Insler cervical mucus scores and serum markers of ovulation. RESULTS Randomization yielded similar groups. Of 121 enrolled women, 117 contributed analyzable data. Overall, mean LNG concentrations achieved with use of the 75 mcg patch [value] were roughly double those seen with the 40 mcg dose. Concentrations achieved in higher-BMI women (BMI=32-40 kg/m2) were 50% lower compared to lower-BMI women for both patches. During the study, 94/117 (80%) participants had at least one LNG concentration <180 pg/mL. Insler scores were ≥5 at least once in 102/117 (87%) of participants, and ovulation occurred at least once in 81/117 (69%). Sixty participants (51%) had at least one ovulation following an Insler score ≥5; this occurred most frequently among higher-BMI participants using the lower-dose patch (19/25, 76%). CONCLUSIONS Women using two investigational LNG patches did not achieve consistent concentrations of LNG >180 pg/mL, an efficacy benchmark established in other studies with LNG implants, and they experienced high rates of ovulation as well as cervical mucus scores not supportive of high contraceptive efficacy. IMPLICATIONS The novel LNG-only patches in this study may not adequately decrease pregnancy risk, particularly for higher-BMI women. Future studies of LNG-only contraceptive patches will need to employ higher LNG doses and assess the acceptability and safety of such dosing.
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Affiliation(s)
| | | | | | | | | | | | - Diana Blithe
- National Institute of Child Health and Human Development
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Grandi G, Farulla A, Sileo FG, Facchinetti F. Levonorgestrel-releasing intra-uterine systems as female contraceptives. Expert Opin Pharmacother 2018; 19:677-686. [PMID: 29637798 DOI: 10.1080/14656566.2018.1462337] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION The availability and use of long-acting reversible contraceptives (LARCs), such as levonorgestrel intrauterine systems (LNG-IUSs), have increased in recent times. AREAS COVERED The authors provide a narrative review of the LNG-IUSs currently available worldwide as female contraceptives (LNG-IUS 13.5, 19.5 and 52 mg). Specific features of the devices and their parameters of efficacy and tolerability were considered as outcomes. EXPERT OPINION The one-handed 3.8-mm-diameter inserter of LNG-IUS 13.5 mg and 19.5 mg may be particularly suitable in nulliparous women. While LNG-IUSs 13.5, 19.5 mg and LNG 52 mg should be used by women simply looking for an effective contraceptive method for up to 3, 4 or 5 years, LNG-IUS 52 mg has also been approved for the treatment of heavy menstrual bleeding and endometrial protection during hormone replacement therapy. LNG-IUS 52 mg is ideal for women who are experiencing a certain hyperestrogenic hormonal environment, with heavy menstrual bleeding due to hormonal imbalances, adenomyosis or fibroids, in the case of symptomatic endometriosis or for endometrial protection during hormone estrogenic replacement therapy in non-hysterectomized women.
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Affiliation(s)
- Giovanni Grandi
- a Department of Medical and Surgical Sciences for Mother , Child and Adult, University of Modena and Reggio Emilia, Azienda Ospedaliero Universitaria Policlinico , Modena , Italy
| | - Antonino Farulla
- a Department of Medical and Surgical Sciences for Mother , Child and Adult, University of Modena and Reggio Emilia, Azienda Ospedaliero Universitaria Policlinico , Modena , Italy
| | - Filomena Giulia Sileo
- a Department of Medical and Surgical Sciences for Mother , Child and Adult, University of Modena and Reggio Emilia, Azienda Ospedaliero Universitaria Policlinico , Modena , Italy
| | - Fabio Facchinetti
- a Department of Medical and Surgical Sciences for Mother , Child and Adult, University of Modena and Reggio Emilia, Azienda Ospedaliero Universitaria Policlinico , Modena , Italy
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Grzeskowiak LE, Roberts CT, Calabretto HE. Emergency contraception - an evidence-based practice guide. JOURNAL OF PHARMACY PRACTICE AND RESEARCH 2017. [DOI: 10.1002/jppr.1416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Luke E. Grzeskowiak
- Adelaide Medical School; Robinson Research Institute; University of Adelaide; Adelaide Australia
- SA Pharmacy; Flinders Medical Centre; SA Health; Adelaide Australia
| | - Claire T. Roberts
- Adelaide Medical School; Robinson Research Institute; University of Adelaide; Adelaide Australia
| | - Helen E. Calabretto
- Adelaide Medical School; Robinson Research Institute; University of Adelaide; Adelaide Australia
- SHINE SA; Adelaide Australia
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33
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Lee JK, Schwarz EB. The safety of available and emerging options for emergency contraception. Expert Opin Drug Saf 2017; 16:1163-1171. [PMID: 28730840 DOI: 10.1080/14740338.2017.1354985] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Emergency contraception (EC) is a way to significantly reduce the chance of becoming pregnant after an episode of unprotected intercourse. Considerable data support the safety of all available and emerging options for EC. Areas covered: This review presents a comprehensive summary of the literature regarding the safety of EC as well as directions for further study. PubMed was searched for all relevant studies published prior to June 2017. Expertopinion: All available methods of EC (i.e., ulipristal acetate pills, levonorgestrel pills, and the copper-IUD), carry only mild side effects and serious adverse events are essentially unknown. The copper IUD has the highest efficacy of EC methods. Given the excellent safety profiles of mifepristone and the levonorgestrel IUD, research is ongoing related to use of these products for EC.
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Affiliation(s)
- Jessica K Lee
- a Department of Obstetrics and Gynecology , Johns Hopkins University , Baltimore , MD , USA
| | - Eleanor Bimla Schwarz
- b Department of General Internal Medicine , UC Davis, Division of General Internal Medicine , Sacramento , CA , USA
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34
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Cameron ST, Li HWR, Gemzell-Danielsson K. Current controversies with oral emergency contraception. BJOG 2017; 124:1948-1956. [DOI: 10.1111/1471-0528.14773] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2017] [Indexed: 12/30/2022]
Affiliation(s)
- ST Cameron
- Chalmers Sexual and Reproductive Health Centre; Edinburgh UK
| | - HWR Li
- Department of Obstetrics and Gynaecology; University of Hong Kong; Queen Mary Hospital; Hong Kong Hong Kong
- Shenzhen Key Laboratory of Fertility Regulation; Reproductive Medicine Centre; The University of Hong Kong-Shenzhen Hospital; Shenzhen China
| | - K Gemzell-Danielsson
- Shenzhen Key Laboratory of Fertility Regulation; Reproductive Medicine Centre; The University of Hong Kong-Shenzhen Hospital; Shenzhen China
- Department of Women's and Children's Health; Division of Obstetrics and Gynaecology; Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
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