Long-acting reversible contraception by effervescent microneedle patch.

To increase access to long-acting contraception, we developed a reversible contraceptive microneedle patch that is simple-to-administer, slowly releases contraceptive hormone (levonorgestrel) for >1 month, and generates no biohazardous sharps waste. After manually pressing the patch to skin for 1 min, microneedles rapidly separate from the patch within the skin due to effervescence triggered by contact with skin's interstitial fluid, as demonstrated in rats and human participants. Long-acting contraception is achieved by formulating microneedles with a biodegradable polymer [poly(lactic-co-glycolic) acid] that slowly releases levonorgestrel for ~1 month in vitro. In rats, the patch maintained levonorgestrel concentration above the human contraceptive threshold level for >1 month, and a placebo microneedle patch was well-tolerated in human participants. Women of reproductive age in three continents demonstrated interest in and preference for long-acting contraception by microneedle patch. These studies indicate that an effervescent microneedle patch could facilitate greater access to long-acting contraception.

Prevalence and predictors of initiation of intrauterine devices and subdermal implants immediately after surgical abortion.

OBJECTIVES: To estimate uptake of long-acting reversible contraception (LARC) methods immediately after surgical abortion in a system that makes these methods readily available, and to determine demographic, medical, social, and visit-specific predictors of immediate post-abortion intrauterine device (IUD) and implant initiation. STUDY DESIGN: We performed a retrospective cohort study of LARC (levonorgestrel intrauterine system [IUS], copper IUD, and subdermal implant) initiation at the time of surgical abortion up to 21w0d gestation at Planned Parenthood League of Massachusetts from 2012 through 2017. We calculated proportions of IUD and implant initiation and used mixed effect logistic regression to estimate predictors of each outcome. RESULTS: Among 26,858 surgical abortion patients, 25.4% received immediate post-abortion LARC: 14.2%, 4.2%, and 7.0% received a levonorgestrel IUS, copper IUD, and implant, respectively. Compared to White women, Black women had lower odds of initiating an IUD (aOR 0.81, 95% CI 0.74-0.89). Multiparous women had greater odds than nulliparous women of initiating an IUD (aOR 1.69, 95% CI 1.57-1.82) or implant (aOR 1.36, 95% 1.20-1.53). We found age was the strongest predictor of implant initiation (<18 versus≥35: aOR 3.26, 95% CI 2.26-4.71), but was not associated with IUD uptake. Gestational age was not associated with IUD or implant uptake. Implant uptake increased from 2.4% (2012) to 8.7% (2017) (aOR 3.65, 95% CI 2.36-5.65) while IUD uptake remained fairly constant. CONCLUSION: About 25% of women chose to initiate intrauterine or implantable contraception immediately after surgical abortion when these methods are readily available. Implant uptake has increased significantly in recent years. Women who initiated IUDs and implants differed in their demographic and social profiles. IMPLICATIONS: Women seeking surgical abortion should have same-day access to IUDs and implants. Clinicians and researchers should analyze IUD and implant initiation separately.

Long-Acting Reversible Contraception: Difficult Insertions and Removals.

The use of long-acting reversible contraception is on the rise across the United States and has contributed to a decrease in teen pregnancies. With the increased use of long-acting reversible contraception, physicians may encounter difficult insertions and removals of intrauterine devices (IUDs) and the contraceptive implant. Uterine structure (e.g., extreme anteversion or retroversion, uterine tone during the postpartum period and breastfeeding) can pose challenges during IUD insertion. Special consideration is also needed for IUD insertions in patients who are transgender or gender nonconforming, such as psychosocial support and management of vaginal atrophy. Missing IUD strings may complicate removal, possibly requiring ultrasonography and use of instruments such as thread retrievers, IUD hooks, and alligator forceps. Regarding implant removal, those that are barely palpable (e.g., because of an overly deep insertion or excessive patient weight gain), removal may require ultrasonography, use of vas clamps and skin hooks, and extra dissection.

Algorithm of Transvaginal Ultrasound and/or Hysterosalpingogram for Confirmation Testing at 3 Months after Essure Placement.

STUDY OBJECTIVE: To evaluate the algorithm of transvaginal ultrasound (TVU) and/or modified hysterosalpingogram (HSG) confirmation testing 3 months after Essure placement to determine if women can rely on the device for permanent birth control. DESIGN: Interim analysis of an ongoing 10-year, prospective, multicenter, nonrandomized, single-arm, international trial (Canadian Task Force classification II-2). SETTING: Twenty study centers in the United States (n = 12), Canada (n = 1), The Netherlands (n = 6), and Spain (n = 1). PATIENTS: Women undergoing the Essure procedure for permanent birth control. INTERVENTIONS: Based on the algorithm for confirmation testing, women with an uncomplicated Essure procedure underwent TVU as the confirmation test; modified HSG was used for women ineligible for TVU, when TVU findings were abnormal or inconclusive, or based on the physician's discretion. MEASUREMENTS AND MAIN RESULTS: Co-primary endpoints (intention-to-treat [ITT] population) were the reliance rate and the 1-year pregnancy rate. Safety evaluation was based on adverse events. Bilateral insert placement was attempted in 597 women (ITT population) and achieved in 582 of 597 (97.5%). A total of 547 women were told to rely on Essure for permanent birth control. Both co-primary endpoints met prespecified limits: based on Bayesian statistics, the reliance rate was 91.6% (547/597; 95% credible interval, 89.2%-93.6%) and the 1-year pregnancy rate .67% (95% credible interval, .16%-1.53%). Using the algorithm for confirmation testing, of 547 subjects told to rely on Essure, 470 (86%) underwent TVU alone, 30 (6%) had modified HSG alone, and 47 (9%) had TVU followed by modified HSG. Four women became pregnant after being told to rely on Essure. They all had confirmation testing with TVU alone, and each initially read incorrectly as optimal insert locations. In each case postpregnancy follow-up and root cause analysis revealed unsatisfactory insert locations, 2 of which were perforations. Most adverse events were mild and unrelated to Essure. CONCLUSION: The algorithm of TVU and/or modified HSG confirmation testing 3 months after Essure placement can determine that a woman can rely on the device for permanent birth control. The adverse events observed are consistent with the known safety profile of Essure. (clinicaltrials.gov: NCT01327105.).

Anticoncepcionais reversíveis de longa duração: Implante Liberador de Etonogestrel (Implanon®) / Long-acting reversible contraceptives: etonogestrel-releasing implant (Implanon®)

Apesar do crescente número de usuárias de métodos contraceptivos, 41% das gestações mundiais não foram planejadas. Os métodos de longa duração são uma alternativa eficaz de reduzir o número de gestações não planejadas diminuindo, assim, taxas de mortalidade materna e infantil. O implante é um método reversível de longa duração, com alta eficácia e taxa de continuidade. Este estudo tem como proposta fazer uma revisão sobre o implante liberador de etonogestrel, seus efeitos adversos e benefícios contraceptivos e não contraceptivos.(AU)

Despite the growing number of users of contraceptive methods, 41% of worldwide pregnancies were unplanned. Long acting reversible contraceptives (LARCS) are an effective alternative to reduce the number of unplanned pregnancies thereby reducing maternal and child mortality. The implant is a LARC, with high efficacy and continuation rate. This study has the objective to review the use of the etonogestrel-releasing implant, its adverse effects and contraceptive and non-contraceptive benefits.(AU)