Contraception Clinical Trial
Official title:
Investigation of the Potential for Intramuscular Depot Medroxyprogesterone Acetate as Emergency Contraception
Verified date | November 2020 |
Source | University of Southern California |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Background: The prevalence of repeat unprotected intercourse after EC use in the same cycle demonstrate the need for more self-bridging emergency contraceptive options. We propose the use of intramuscular Depot Medroxyprogesterone acetate (DMPA) as EC, which has been shown to inhibit follicular activity within 24 hours, and provide on-going contraception via suppression or disruption of ovulation. Objective: The objective of this study is to explore the potential of depot medroxyprogesterone acetate (DMPA) given as a 150-mg intramuscular injection for use as an emergency contraceptive. Study population: Healthy regularly menstruating women aged 18-39 years old will be invited to participate if they fulfill inclusion criteria. The participants will undergo a screening visit during the midluteal phase of their cycle, and will be enrolled if a serum progesterone level is >3ng/ml. Methodology: Participants will be assigned to one of three groups based on leading follicle size. Starting cycle Day 8, transvaginal ultrasounds will be performed to assess the size of the leading follicle. Once the follicle has reached the pre-assigned size, 150 mg IM DMPA will be administered. Blood will be collected for baseline hormonal assays. For 5 consecutive days, daily blood will be drawn for hormonal assays and daily transvaginal ultrasound will be performed to assess for signs of ovulation. The participant will then return for twice weekly progesterone levels for 2 weeks for study completion.
Status | Completed |
Enrollment | 30 |
Est. completion date | October 30, 2020 |
Est. primary completion date | October 30, 2020 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 18 Years to 39 Years |
Eligibility | Inclusion Criteria: - Healthy women of reproductive age (18-39 years old) with BMI 18-30 kg/m2 - Regular menses for the last 3 months - Cycle duration 24 to 35 days - Women using copper IUD, sterilization, or barrier methods as current or preferred birth control method, and women reporting exclusive sex with women - English- or Spanish-speaking Exclusion Criteria: - Any contraindications to progesterone contraception per teh CDC Medical Eligibility Criteria (Category 3 or 4) - On medications that can alter, or be altered by, progesterone contraceptive steroid hormone (e.g., aminoglutethimide or other anti-steroid medication) - Use of any hormonal contraceptive pill, patch, or vaginal ring in the month prior to recruitment - Use of depot-medroxyprogesterone acetate in teh 10 months prior to recruitment - Currently pregnant and/or breastfeeding - History of allergic reaction to depot medroxyprogesterone acetate (rash, urticaria, anaphylaxis) |
Country | Name | City | State |
---|---|---|---|
United States | University of Southern California Keck Medical Center | Los Angeles | California |
Lead Sponsor | Collaborator |
---|---|
University of Southern California | Society of Family Planning |
United States,
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* Note: There are 30 references in all — Click here to view all references
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Ovulation | Follicle rupture on ultrasound preceded by LH surge 21 IU/L or greater, followed by progesterone level 3 ng/ml or greater. | 5 days to 3 weeks | |
Primary | Ovulation Suppression | Lack of follicular rupture on ultrasound with or without appropriate LH surge of 21 IU/L or greater and without elevation in progesterone levels to 3 ng/ml or greater | 5 days to 3 weeks | |
Primary | Ovulatory dysfunction | Rupture of leading follicle without appropriate LH surge (less than 21 IU/L) and without appropriate progesterone elevation after rupture (less then 3 ng/ml) | 5 days to 3 weeks |
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