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Pilot study examining the pharmacokinetics of 0.35mg norethindrone vs 5mg norethindrone acetate

The purpose of this research study is to assess the relative bioavailability of norethindrone at different times in individuals taking 0.35mg norethindrone vs 5mg norethindrone acetate in order to demonstrate that it is safe to prescribe norethindrone acetate as a form of contraception.

There will be 9 visits/month for 2 menstrual cycles with a one month break in between the cycles. At the start of their first menstrual cycle, subjects will take norethindrone for 7 consecutive days. On each of the 7 days subjects will report to the research center for a single blood draw 1 to1.5 hours after taking the norethindrone. On Day 8 subjects will report to the research center to have an 8 hour Pharmacokinetic test in which an IV will be inserted and one tube of blood will be drawn through the IV every hour for 8 hours. Subjects will report for another single blood draw on cycle day 21. After the first cycle, the subject will wait until they have completed their next menstrual cycle and at the start of the very next menstrual cycle they will repeat the same procedure with norethindrone acetate.

$540

Sarah Horvath
Barb Scheetz - at bscheetz@pennstatehealth.psu.edu or 717-531-4483
 

Female
18 year(s) or older
This study is also accepting healthy volunteers
NCT05294341
STUDY00019587
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Inclusion Criteria:
premenopausal women aged 18-55
must have regular menstrual cycles every 24-34 days(women who have had a bilateral tubal ligation are eligible to participate)
not on any form of hormonal contraception or infertility medications for the past 3 months
able to travel to the site for blood draws
able to receive phone/text messages with reminders about study visits

Exclusion Criteria:
currently pregnant or < 3 months postpartum
hysterectomy
clinical depression,diabetes, liver or kidney disease
breast cancer or venous thromboembolism
Currently taking CYP3A4 inducer or inhibitor drugs
Women's Health
Approved drug(s)
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See this study on ClinicalTrials.gov
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Location Contacts
Hershey, PA ,