Safety of progesterone only contraception

BACKGROUND: There is little information of progestogen-only contraceptives in patients with congenital heart disease (CHD) on the long-term. OBJECTIVE: To evaluate the use of contraception in patients with CHD. We studied both short-acting reversible contraceptives (SARCs), oral progestin-only pills (POPs) and long-acting reversible contraceptives (LARCs): intrauterine devices (IUD-IPs) and subdermal implants both impregnated with progestogens (SI-IPs). STUDY DESIGN: Retrospective study of all women attending the preconception clinic...

STUDY QUESTION: Is exposure to dydrogesterone a risk factor for congenital anomalies when given in the first trimester for recurrent/threatened pregnancy loss or as luteal support in assisted reproductive technology (ART)? SUMMARY ANSWER: Dydrogesterone, when given in the first trimester for recurrent/threatened pregnancy loss or as luteal support in ART, is not a relevant additional risk factor for congenital anomalies. WHAT IS KNOWN ALREADY: Despite large clinical trials and meta-analyses that show no association between dydrogesterone and congenital anomalies, some recently retracted publications have postulated an association with teratogenicity...

AIM: Drospirenone (DRSP) is a synthetic progestogen approved as a progestin-only pill for contraception in both the United States and Europe. Herein, we conducted a phase I/II study to evaluate the pharmacokinetics, pharmacodynamics, and safety of DRSP in Japanese women. METHODS: Single and multiple doses of 4 mg of DRSP were orally administered to healthy premenopausal Japanese women. In the multiple-dose period, 4 mg of DRSP was administered once daily for 24 days...

Until breastfeeding is established, progesterone-only pill (POP) use is preferable over combined hormonal contraception (CHC), as the latter potentially reduces milk production. Yet, POPs are often associated with breakthrough bleeding (BTB), and irregular spotting is often a reason for their cessation. Conversely, CHC is less associated with BTB but is not usually prescribed, even if breastfeeding has been established, despite its verified safety profile. Here, we surveyed physicians' perception of CHC safety during breastfeeding through an online questionnaire (N = 112)...

INTRODUCTION: Globally, many young women face the overlapping burden of HIV infection and unintended pregnancy. Protection against both may benefit from safe and effective multipurpose prevention technologies. METHODS: Healthy women ages 18-34 years, not pregnant, seronegative for HIV and hepatitis B surface antigen, not using hormonal contraception, and at low risk for HIV were randomized 2:2:1 to continuous use of a tenofovir/levonorgestrel (TFV/LNG), TFV, or placebo intravaginal ring (IVR)...

BACKGROUND: Self-prescribed gender-affirming hormone therapy (GAHT) is common practice among transgender women, especially in resource-limited countries, yet the effectiveness of each GAHT regimen to achieve female range sex hormone concentrations is not known. AIM: To describe the use and sex hormone concentrations of various GAHT regimens among transgender women who self prescribe in Thailand. METHODS: This was a retrospective study in a community-based setting...

This study aimed to test zona pellucida (ZP) vaccines' immunocontraceptive efficacy and safety when formulated with non-Freund's adjuvant (6% Pet Gel A and 500 Μg Poly(I:C)). Twenty-four jennies were randomly assigned to three treatment groups: reZP ( n = 7) received three doses of recombinant ZP vaccine; pZP ( n = 9) received two doses of native porcine ZP; and Control group ( n = 8) received two injections of placebo. Jennies were monitored weekly via transrectal ultrasonography and blood sampling for serum progesterone profiles and anti-pZP antibody titres...

These documents have been archived because they contain outdated information. They should not be consulted for clinical use, but for historical research only. Please visit the journal website for the most recent guidelines. Prenatal Screening for Fetal Aneuploidy [J Obstet Gynaecol Can 29 (2007) 146-161] AUTHORS Anne Summers, MD, North York, ON Sylvie Langlois, MD, Vancouver, BC Phil Wyatt, MD, PhD, Toronto, ON R. Douglas Wilson, MD, Philadelphia, PA A Report on Best Practices for Returning Birth to Rural and Remote Aboriginal Communities [J Obstet Gynaecol Can 29 (2007) 250-254] AUTHOR Carol Couchie, RM Diagnosis and Management of Placenta Previa [J Obstet Gynaecol Can 29 (2007) 261-266] AUTHOR Lawrence Oppenheimer, MD, Ottawa, ON Non-Medical Use of Fetal Ultrasound [J Obstet Gynaecol Can 29 (2007) 364-365] AUTHORS Michiel C...

These documents have been archived because they contain outdated information. They should not be consulted for clinical use, but for historical research only. Please visit the journal website for the most recent guidelines. The Use of Magnetic Resonance Imaging in the Obstetric Patient [J Obstet Gynaecol Can 36 (2014) 349-355] AUTHORS Yves Patenaude, MD, Sherbrooke, QC Denise Pugash, MD, Vancouver, BC Kenneth Lim, MD, Vancouver, BC Lucie Morin, MD, Montreal, QC The Role of Surgery in Endometrial Cancer [J Obstet Gynaecol Can 35 (2013) 370-371] AUTHORS Christopher Giede, MD, Saskatoon, SK Tien Le, MD, Ottawa, ON Patti Power, MD, St John's, NL Female Genital Cutting [J Obstet Gynaecol Can 35 (2013) 1028-1045] AUTHORS Liette Perron, MSW, Ottawa, ON Vyta Senikas, MD, Ottawa, ON Margaret Burnett, MD, Winnipeg, ON Victoria Davis, MD, Scarborough, ON Technical Update on Pessary Use [J Obstet Gynaecol Can 35 (2013) 664-674] AUTHORS Magali Robert, MD, Calgary, AB Jane A...

PURPOSE OF REVIEW: This review is intended to provide perspective on the history of selective progesterone receptor modulators (SPRMs) and progesterone antagonists, their current availability, therapeutic promise and safety concerns. RECENT FINDINGS: Despite keen interest in synthesis of these compounds, only a handful have had clinical test results allowing for commercialization. Mifepristone is well tolerated and effective for single dose first trimester at-home pregnancy termination and is available in much of the world...

The aim of this systematic review and meta-analysis was to evaluate the effectiveness of different hormone therapies, including hormonal contraceptives, in women with premature ovarian insufficiency (POI). Thirty reports of 28 studies were included, with a total of 4004 participants with POI from diverse aetiologies, of whom 3785 received hormone therapies and 219 received calcium supplementation, vitamin D, placebo or no treatment. Hormone therapy was superior to non-treatment, placebo, calcitriol or calcium in preserving bone mineral density (BMD) in women with POI...

BACKGROUND: Self-prescribed gender-affirming hormone therapy (GAHT) is common practice among transgender women, especially in resource-limited countries, yet the effectiveness of each GAHT regimen to achieve female range sex hormone concentrations is not known. AIM: To describe the use and sex hormone concentrations of various GAHT regimens among transgender women who self prescribe in Thailand. METHODS: This was a retrospective study in a community-based setting...

OBJECTIVES: To investigate the effect of different oral dosages of levonorgestrel (LNG) on ovarian activity and to identify the lowest dosage at which no ovulation occurred. Secondary objectives were to assess return of ovulation after stopping treatment, bleeding pattern, pharmacokinetic (PK) parameters and safety and tolerability. STUDY DESIGN: A parallel-group study with adaptive design was performed in 90 healthy women with proven ovulatory cycles. Investigated dosages were LNG 0...

OBJECTIVES: To assess pharmacodynamic and pharmacokinetic outcomes of a novel copper (Cu) intrauterine system (IUS) releasing ulipristal acetate (UPA) in healthy women. STUDY DESIGN: In this single-blinded, randomized proof-of-concept study, ovulatory women received one of three Cu-IUSs releasing low-dose UPA (5, 20 or 40 µg/d) for 12 weeks. The study included a baseline cycle, three 4-week treatment-cycles and 2 recovery cycles. Primary outcomes included effects of the IUS on bleeding profile, ovarian function, and the occurrence of progesterone receptor modulator associated endometrial changes (PAEC)...

BACKGROUND: Progestin-only contraceptive pills (POP) are commonly reserved for women with medical comorbidities but in actuality, POPs can be safely used by anyone wanting to prevent pregnancy. This wide safety profile makes them an ideal candidate for being available over the counter without a prescription, but adherence issues may be more common with over-the-counter use. We need a better understanding of the ability of POPs to prevent pregnancy when adherence issues occur in the form of a missed or delayed pill...

BACKGROUND: Two pharmacokinetic/pharmacodynamic studies were conducted to evaluate the potential drug-drug interaction between elagolix, an oral gonadotropin-releasing hormone receptor antagonist, and an oral contraceptive (ethinylestradiol [EE] 0.035 mg and norgestimate 0.18/0.215/0.25 mg) or progestin-only contraceptive (norethindrone 0.35 mg) in healthy premenopausal women. METHODS: These phase I studies used a two-period, sequential design, where period 1 included treatment with oral contraceptives, followed by period 2 with contraceptives coadministered with elagolix 150 mg once daily...

Even after decades of research men still lack reliable and reversible contraceptive methods comparable to female methods of contraception. Traditional methods of male contraception present a high failure rate and also involve high risk both when used for contraception and for protection against sexually transmitted diseases. Various chemical, hormonal, immunological, vas based and herbal methods of contraception have been examined by scientists world over during the past four decades. Among the possible lead approaches, exogenous hormonal contraception, either alone or in combination with progesterone or antiandrogen, is being viewed at low profile because of their insufficiency in inducing uniform suppression of spermatogenesis and steroid related long term complications...

AIMS: Effective stroke treatments beyond reperfusion remain scant. The natural steroid hormone progesterone has shown protective effects in experimental models of brain injury and cardiovascular disease. However, unfavourable bioavailability limits its clinical use. Desogestrel and drospirenone are new generation progestins with progesterone-like properties, developed as oral contraceptives with excellent bioavailability and safety profile. We investigated the neuroprotective properties of these progestins in vivo using transient middle cerebral artery occlusion (MCAO) and in vitro using an oxygen-glucose deprivation and reoxygenation (OGD/R) model in primary neuronal cells...

CONTEXT: Allopregnanolone is a metabolite from progesterone and a positive modulator of the GABAA receptor. This endogenous steroid may induce negative mood in sensitive women when present in serum levels comparable to the premenstrual phase. Its endogenous isomer, isoallopregnanolone, has been shown to antagonize allopregnanolone effects in experimental animal and human models. OBJECTIVE: The objective was to test whether inhibition of allopregnanolone by treatment with the GABAA modulating steroid antagonist (GAMSA) Sepranolone (UC1010) during the premenstrual phase could reduce symptoms of the premenstrual dysphoric disorder (PMDD)...

INTRODUCTION: Emergency contraception is a safe and effective method to prevent an unwanted pregnancy after an unprotected or inadequately protected sexual intercourse. Several methods for emergency contraception (EC) are currently registered in many countries for use in an emergency to prevent a pregnancy following an unprotected, possibly fertile intercourse or after a contraceptive accident like condom rupture. Different methods have varying modes of action, time frame of efficacy, dosage schedule and unwanted effects...