Comparison of pregnancy rates in users of extended and cyclic combined oral contraceptive (COC) regimens in the United States: a brief report

Contraceptive methods in adolescence: a narrative review of guidelines

PURPOSE

Adolescent pregnancy, while recently in decline, remains a matter in need of addressing. Education and counselling are deemed crucial and this review aims at comparing published contraceptive guidelines, thus resolving any surrounding misconceptions.

MATERIALS AND METHODS

Recently published contraception guidelines regarding adolescent pregnancy were retrieved. In particular, guidelines and recommendations from ACOG, RCOG, SOCG, AAP, CPS, NICE, CDC, and WHO were compared and reviewed based on each guideline's method of reporting.

RESULTS

Three categories of contraceptive methods are available for adolescents and recommendations on their initiation should be made based on their efficacy, according to all guidelines. Therefore, long acting reversible contraceptives (LARCs) should be highly recommended as the most effective method (typical use failure rate: 0.05%), followed by short-acting hormonal contraceptives (typical use failure rate: 3-9%). The third contraceptive option includes contraceptives used in the moment of intercourse and displays the lowest effectiveness (typical use failure rate: 12-25%), mostly due to its dependence on personal consistency, however offers protection against STI transmission.

CONCLUSION

Adolescents should be encouraged to initiate contraception, with LARCs being the primary choice followed by short-acting hormonal contraception. However, regardless of the chosen effective contraceptive method, the use of condom is necessary for STI prevention.

No. 329-Canadian Contraception Consensus Part 4 of 4 Chapter 9: Combined Hormonal Contraception

OBJECTIVE

To provide guidelines for health care providers on the use of contraceptive methods to prevent pregnancy and on the promotion of healthy sexuality.

OUTCOMES

Overall efficacy of cited contraceptive methods, assessing reduction in pregnancy rate, safety, and side effects; the effect of cited contraceptive methods on sexual health and general well-being; and the availability of cited contraceptive methods in Canada.

EVIDENCE

Medline and the Cochrane Database were searched for articles in English on subjects related to contraception, sexuality, and sexual health from January 1994 to December 2015 in order to update the Canadian Contraception Consensus published February-April 2004. Relevant Canadian government publications and position papers from appropriate health and family planning organizations were also reviewed.

VALUES

The quality of the evidence is rated using the criteria described in the Report of the Canadian Task Force on Preventive Health Care. Recommendations for practice are ranked according to the method described in this report.

SUMMARY STATEMENTS

RECOMMENDATIONS.

Counselling to include tailored use of combined oral contraception in clinical practice: an evaluation

BACKGROUND

Combined oral contraception (COC, 'the pill') remains the most prescribed method of contraception in the UK. Although a variety of regimens for taking monophasic COC are held to be clinically safe, women are not routinely counselled about these choices and there is a lack of evidence on how to provide this information to women.

AIM

To assess the usefulness and feasibility of including tailored use of monophasic COC within routine COC counselling in a sexual and reproductive health (SRH) service using a structured format.

METHOD

Using a structured format, healthcare professionals (HCPs) counselled new and established COC users attending an SRH service about standard and tailored ways of taking the pill. Questionnaires were used to survey both the HCPs and patients immediately after the initial consultation, and then the patients again 8 weeks later.

RESULTS

Nearly all patients (98%, n=95) felt it was helpful to be informed of the different ways of using monophasic COC by the HCP, without giving too much information at one time (96%, n=108). The HCPs were confident of their COC counselling (99%, n=110) and did not think the consultations took significantly longer (88%, n=98).

CONCLUSION

This study demonstrates that information on different pill taking regimens is useful and acceptable to patients, and can improve contraceptive pill user choice. It is also feasible for HCPs to perform COC counselling to include tailored pill use during routine consultations in a clinical setting.

Cycle control with an extended-regimen oral contraceptive combining levonorgestrel and ethinyl estradiol that includes continuous low-dose ethinyl estradiol instead of the traditional hormone-free interval

PURPOSE

To evaluate scheduled and unscheduled bleeding and spotting over 1 year of treatment with 91-day extended-regimen combined oral contraception (COC) providing continuous low-dose ethinyl estradiol (EE) in place of the traditional 7-day hormone-free interval (HFI).

PATIENTS AND METHODS

This post hoc analysis of a multicenter, open-label, 1-year, Phase 3 study of extended-regimen COC with 30 µg EE/150 µg levonorgestrel (LNG) for 84 days and EE 10 µg for 7 days included 799 sexually active, adult women who completed at least one 91-day cycle of therapy. Subjects recorded bleeding and spotting episodes daily using electronic diaries. Logistic regression analyses are reported as ORs with 95% CIs.

RESULTS

There was a 10% increase (OR =1.102; 95% CI: 1.006-1.206) in the likelihood of reporting no scheduled bleeding for each additional 91-day cycle completed. From the third 91-day cycle, more than one fifth of women reported no scheduled bleeding (third cycle =23% [121/533]; fourth cycle =22% [97/446]). Among women who reported no scheduled bleeding at Cycle 1 (136/758 [18%]), ≥45% showed sustained lack of scheduled bleeding in later cycles. There were increases of 53% (OR =1.531; 95% CI: 1.393-1.683) and 31% (OR =1.307; 95% CI: 1.205-1.418) in the likelihood of reporting 0 to ≤6 days vs >6 days of unscheduled bleeding and spotting, respectively, for each additional 91-day cycle. By Cycle 2, more than 80% of women reported no unscheduled bleeding or ≤6 days of unscheduled bleeding during each 91-day cycle.

CONCLUSION

Improved cycle control with decreased bleeding over time was shown during extended-regimen COC with 30 µg EE/150 µg LNG for 84 days and continuous low-dose EE instead of the traditional 7-day HFI. Women considering this regimen should be informed that those who complete at least one 91-day COC cycle will likely experience less bleeding/spotting in future cycles.

Contraception options: Aspects unique to adolescent and young adult

Sexual health for adolescents is based on three components: recognizing sexual rights, sexuality education and counseling, and thirdly confidential high quality services. Contraception needs to include prevention of both STIs and pregnancies. The first option for adolescents is condoms backed-up by emergency contraception; and later hormonal contraceptives in a longer, mutually monogamous relationship. Condoms and hormonal contraception together can be well recommended for adolescents for dual protection. Long acting reversible contraception (LARC) including both intrauterine contraception and implants are safe and highly effective and thus well suited for adolescents. Improved contraceptive methods do not automatically lead to reduced numbers of adolescent abortions. When sexuality education, proper counseling and sexual health services are all provided, it is possible to profoundly improve adolescent sexual health.

Extended regimen combined oral contraception: A review of evolving concepts and acceptance by women and clinicians

Objectives: The clinical utility of extended regimen combined oral contraceptives (COCs) is increasingly being recognised. Our objective was to understand the attitudes of women and clinicians about the use of these regimens. We present the rationale for extended regimen COCs from a historical perspective, and trace their evolution and growing popularity in light of their clinical benefits. We conclude by offering potential strategies for counselling women about extended regimen COC options.

Methods: We conducted a MEDLINE search to identify and summarise studies of extended regimen COCs, focusing on attitudes of women and clinicians regarding efficacy, safety/tolerability and fewer scheduled bleeding episodes and other potential benefits.

Results: The body of contemporary literature on extended regimen COCs suggests that their contraceptive efficacy is comparable to that of conventional 28-day (i.e., 21/7) regimens. For women seeking contraception that allows infrequent scheduled bleeding episodes, particularly those who suffer from hormone withdrawal symptoms and cyclical symptoms (e.g., headache, mood changes, dysmenorrhoea, heavy menstrual bleeding), extended regimen COCs are an effective and safe option. Although satisfaction with extended regimen COCs in clinical trials is high, misperceptions about continuous hormone use may still limit the widespread acceptance of this approach.

Conclusions: Despite the widespread acceptance among clinicians of extended regimen COCs as an effective and safe contraceptive option, these regimens are underused, likely due to a lack of awareness about their availability and utility among women. Improved patient education and counselling regarding the safety and benefits of extended regimen COCs may help women make more informed contraceptive choices.

Extended-Cycle Levonorgestrel/Ethinylestradiol and Low-Dose Ethinylestradiol (Seasonique(®)): A Review of Its Use as an Oral Contraceptive

A 91-day extended-cycle oral contraceptive (OC) consisting of levonorgestrel/ethinylestradiol 150/30 µg for 84 days and ethinylestradiol 10 µg for 7 days (Seasonique(®)) has recently been approved for the prevention of pregnancy in adult women in the EU. This regimen allows for a reduction in the number of withdrawal bleeding episodes to four per year, compared with 13 episodes per year with conventional 28-day regimens. Seasonique(®) was effective in preventing pregnancy in a large (n = 1006), noncomparative trial of healthy, sexually active women. In this trial, the overall Pearl index (pregnancies per 100 woman-years of use) in women aged 18-35 years (n = 621) was 0.76 and the Pearl index for method-failure (compliant use) was 0.26. Scheduled (withdrawal) bleeding and/or spotting remained fairly constant over time, with a mean of 2 days of bleeding and 1 day of spotting per each 91-day cycle. Unscheduled bleeding and unscheduled spotting was highest during the first few cycles of use and decreased thereafter. Seasonique(®) was generally well tolerated, with a tolerability profile in line with that expected for OCs. Seasonique(®) extends the contraceptive options currently available to women, particularly in those who desire fewer withdrawal bleeding episodes.

Extended regimens of combined hormonal contraception to reduce symptoms related to withdrawal bleeding and the hormone-free interval: a systematic review of randomised and observational studies

OBJECTIVE

To assess whether continuous and extended regimens (CRs/ERs) of combined hormonal contraceptives (CHCs) improve symptoms related to withdrawal bleeding or the hormone-free interval and to compare the efficacy, safety, and cost of CRs/ERs to those of conventional 28-day regimens.

STUDY DESIGN

A literature search of the PubMed database was conducted for randomised clinical trials (RCTs) and observational studies published in any language between 2006 and 2013.

RESULTS

Sixteen RCTs and 14 observational studies evaluated issues related to our objectives. CRs/ERs, whose efficacy and safety were comparable to those described for conventional regimens, were preferred due to their improvement of symptoms related to withdrawal bleeding or the hormone-free interval and the lower costs resulting from the reduced incidence of these symptoms.

CONCLUSION

The contraceptive efficacy and safety of CR/ER use of CHCs is at least equal to that of 28-days conventional regimens, and this use may have some cost savings. CRs/ERs are recommended for women willing to take a CHC for treatment of symptoms related to withdrawal bleeding or the hormone-free interval.

Comparison of rates of and charges from pregnancy complications in users of extended and cyclic combined oral contraceptive (COC) regimens: a brief report

OBJECTIVE

To evaluate pregnancy complication rates and related charges in users of 84/7, 21/7 and 24/4 combined oral contraceptives (COCs).

STUDY DESIGN

Data were obtained from the i3 InVision Data Mart™ retrospective claims database. Subjects were aged 15-40 years, first prescribed a COC between 1/1/2006 and 4/1/2011 and continuously insured for ≥1 year. 84/7 users were matched 1:1 to 21/7 and 24/4 users.

RESULTS

Pregnancy-related complication rates and associated charges were significantly lower with 84/7 vs. 21/7 and 24/4 regimens.

CONCLUSION

Preliminary data suggest 84/7 regimens may be associated with fewer pregnancy complications and lower related charges.