Mirena and Estrogen for Control of Perimenopause Symptoms and Ovulation Suppression

• Status: Completed
• Trial end date: 2014-06-01
• Target enrollment: 0
• Participant gender: Female

Summary

Hormonal treatment of perimenopausal women has frequently utilized oral contraceptive pills (OCPs). Because of their ability to suppress ovulation and establish cycle control, OCPs have become a popular option, and one that is FDA approved for use until menopause. However, use of OCPs in women in their 40's and 50's carries significant cardiovascular risks. Venous thromboembolism risk is 3-6 fold greater in OCP users, and the risk of myocardial infarction (MI) is approximately doubled in OCP users over the age of 40. This occurs at an age where the background population risk of MI begins to increase, such that the absolute number of cases rises substantially. Women with additional risk factors for cardiovascular disease have a much greater risk for MI (6-40-fold) in association with OCPs. There are also large subgroups of midlife women who are not candidates for OCP use, such a smokers and migraineurs. Moreover, the trend towards lower estrogen dosing with OCPs containing 20 micrograms of ethinyl estradiol has not led to a detectable decrease in thromboembolic risk.

Because of their increased potential risks, it is appropriate to seek alternatives to OCPs and to explore lower doses of hormones to relieve perimenopausal symptoms that occur prior to a woman's final menses. Recent evidence indicates that the hypothalamic-pituitary axis of reproductively aging women is more susceptible to suppression by sex steroids that previously believed. It is possible that hormone doses as low as 50 micrograms of transdermal estradiol (TDE) can suppress the hypothalamic-pituitary axis of midlife women. It is also tempting to speculate that the low but measurable circulating doses of levonorgestrel that are present when a woman uses the Mirena intrauterine system (IUS) can contribute to or even independently suppress the hypothalamic-pituitary axis, and reduce the hormonal fluctuations that result in worsening of perimenopausal symptoms. The combination of low dose TDE plus Mirena may therefore confer superior symptom control as well as contraceptive effectiveness, at far less risk.

• Phase: N/A
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: University of Colorado, Denver
• Collaborator: Bayer
• Treatments: Estradiol; Estradiol 17 beta-cypionate; Estradiol 3-benzoate; Estradiol valerate; Levonorgestrel; Polyestradiol phosphate

Criteria

Inclusion Criteria:

• Age 40-52

• History of regular menstrual cycles every 20-35 days in mid-reproductive life (20-35 years of age)

• At least 1 period within the past 3 months

• BMI less than 35 kg/m2

• Presence of at least one of the following perimenopausal symptoms:

1. Hot flashes (vasomotor symptoms)

2. Cyclical headache, bloating or adverse mood

3. Self-reported poor quality of sleep

Exclusion Criteria:

• Age < 40 years

• Hysterectomy or bilateral oophorectomy

• Cigarette smoking

• Signs or symptoms of restless leg syndrome or sleep apnea

• Any chronic renal or hepatic disease that might interfere with excretion of gonadotropins or sex steroids

• Moderate/vigorous aerobic exercise > 4 hours per week

• Inability to read/write English

• Pregnant Women

• Prisoners

• Decisionally challenged subjects

• Any medical condition that makes use of Topical estradiol or Mirena contraindicated.

• Sex hormone use within the past 30 days

• History of cancer, blood clots or blood clotting disorder