The effect of rifampin on etonogestrel concentrations in contraceptive implant users
This Study is
No Longer Enrolling
? 2 visits lasting 30 minutes ? Visit includes a blood draw, pregnancy test, and vital measurements.
Adult
? Age: 18-45 ? Have a Nexplanon for 1-3 years ? Willing to take rifampin for 2 weeks ? Willing to use a non-hormonal back-up method of birth control (condoms, abstinence, etc.)
English or Spanish Speaking Woman Between Ages 18-45 Using an ENG contraceptive implant for at least 12 months and less than 36 months Have a secondary form of non-hormonal contraception or agree to abstain while taking the study medication, plus two weeks after taking the last dose Have normal baseline comprehensive metabolic panel, complete blood count, and coagulation factor testing at the time of enrollment Have no known contraindications to rifampin
Outcomes Research
Comprehensive Women's Health Center
Department Specific Free Standing Clinic
Protocol Number: 19-2829
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