Trial reportContraception2019
Segesterone acetate/ethinyl estradiol 12-month contraceptive vaginal system safety evaluation.
Trial report in Contraception, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
16 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Are natural estrogens used in contraception at lower risk of venous thromboembolism than synthetic ones? A systematic literature review and meta-analysis.Frontiers in endocrinology · 2024Pooled it
- Dose-finding study of a 90-day contraceptive vaginal ring releasing estradiol and segesterone acetate.Contraception · 2020Trial
- Bleeding profile associated with 1-year use of the segesterone acetate/ethinyl estradiol contraceptive vaginal system: pooled analysis from Phase 3 trials.Contraception · 2019Trial
- Development of a transdermal gel for reversible male contraception.Contraception · 2025Review
- A comparison of acceptability of contraceptive vaginal rings, pills, and injectables among cisgender women in Kenya and Zimbabwe: protocol for a mixed-methods study.Gates open research · 2025Article
- Article
- The benefits of estetrol addition to drospirenone for contraception.AJOG global reports · 2023Article
- Review
- Low Thrombin Generation in Users of a Contraceptive Containing Estetrol and Drospirenone.The Journal of clinical endocrinology and metabolism · 2022Article
- New Contraception Update - Annovera, Phexxi, Slynd, and Twirla.Current obstetrics and gynecology reports · 2022Article
- Addressing contraceptive needs exacerbated by COVID-19: A call for increasing choice and access to self-managed methods.Contraception · 2021Article
- Progesterone vaginal ring as a new contraceptive option for lactating mothers: Evidence from a multicenter non-randomized comparative clinical trial in India.Contraception · 2020Article
- Long-Lasting, Patient-Controlled, Procedure-Free Contraception: A Review of Annovera with a Pharmacist Perspective.Pharmacy (Basel, Switzerland) · 2020Review
- Contraceptive technologies for global health: ethically getting to safe, effective and acceptable options for women and men.Drug delivery and translational research · 2020Article
- Efficacy of the 1-year (13-cycle) segesterone acetate and ethinylestradiol contraceptive vaginal system: results of two multicentre, open-label, single-arm, phase 3 trials.The Lancet. Global health · 2019Article
- Advances in contraception: vaginal contraceptive rings.Therapeutic advances in reproductive healthReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
18 authors.
Funding
Abstract
objectivesTo evaluate safety outcomes from clinical studies of a 12-month contraceptive vaginal system (CVS) releasing an average of segesterone acetate (SA) 150 mcg and ethinyl estradiol (EE) 13 mcg daily. STUDY
designWe integrated clinical safety data from nine studies in which women used the CVS for 21 consecutive days and removed it for 7 days of each 28-day cycle. Four studies used the final manufactured CVS, including a 1-year pharmacokinetic study, two 1-year phase 3 trials and a second-year treatment extension study. We assessed safety by evaluating adverse events women reported in a daily diary. We also included data from focused safety studies evaluating endometrial biopsies, vaginal microbiology and liver proteins from one of the phase 3 studies.
resultsThe combined studies included 3052 women; 2308 women [mean age 26.7±5.1 years; mean body mass index (BMI) 24.1±3.7 kg/m
conclusionThe 1-year SA/EE CVS has an acceptable safety profile. Additional studies are warranted in obese women at higher risk of VTE. IMPLICATIONS: This 1-year contraceptive vaginal system represents a new long-term, user-controlled and procedure-free option with a safety profile similar to other combination hormonal contraceptives. The same precautions currently used for combination hormonal contraceptive prescriptions apply to this new contraceptive vaginal system.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.