Cilostazol and Its Effects on Resumption of Meiosis in the Human Ovary

Completed · Phase 2

Conditions studied: Contraception

In brief

Combined oral contraceptive pills (COCs) are the most commonly used hormonal form of birth control in the United States with at least 87% of women of reproductive age reporting oral contraceptive use at some point in their lives (9). Despite their frequent use, the six and twelve month discontinuation rates for oral contraceptive pills are 31 and 47 % respectively (17), with common reasons for discontinuation attributed to the side effects of abnormal bleeding, headache, and weight gain. Additionally, COCs are contraindicated in certain groups of women as outlined by The Centers for Disease Control Medical Eligibility Criteria (11). Given the high prevalence of oral contraceptive users who commonly discontinue use secondary to side effects or who are not eligible for use as a result of underlying health conditions, the development of novel oral non-hormonal methods that are equally effective at pregnancy prevention are warranted. This current study aims to evaluate the effect of an FDA approved drug, Cilostazol, on human oocyte maturation. Such a study has not been conducted to date. If Cilostazol demonstrates an ability in humans to affect resumption of meiosis, then this non-hormonal agent could be uses as a possible contraceptive agent in the future. This knowledge would have profound reproductive health implications. The investigators propose that women undergoing treatment with the FDA approved dose of 100mg PO every 12 hours of Cilostazol will demonstrate an impairment of egg maturation in comparison to paired historic controls following ovarian follicle stimulation.

Key facts

Study ID

NCT01915069

Run by

University of Southern California

People needed

4

Starts

2013-07-01

Expected to finish

2014-08-01

Last updated by the study team

2015-05-12

Who can join

Age: 18 and older, up to 33. Sex: female. Healthy volunteers: accepted.

You may qualify if…

• previous oocyte donor in USC IVF clinic within past 3 years
• age 18-33
• willingness and ability to commit to the time requirements of the study
• willingness to donate oocytes for research purposes
• willingness to discontinue current hormonal contraception
• otherwise healthy subjects

You may not qualify if…

• contraindications to combined hormonal contraceptive use (CDC MEC class 3 or 4)
• pregnancy
• history of cardiac arrhythmias
• history of heart failure
• history of bleeding disorder
• concomitant use of anti-platelet therapy such as aspirin
• current use of drugs that inhibit cytochrome P450 CYP 3A4 (erythromycin, diltiazem, ketoconazole, itraconazole) or CYP 2C19 (omeprazole) as they may lead to increased serum levels of cilostazol.

Where it is running

• University of Southern California Fertility Clinic — Los Angeles, California, United States

Full record on ClinicalTrials.gov

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