Effects of Hormonal Contraceptives on Liver Proteins and Coagulation Factors: A Comparison of a Contraceptive Vaginal Ring and an Oral Contraceptive
A Randomized, Open-Label Study Comparing the Effect of a Contraceptive Vaginal Ring Delivering Daily Doses of 150 Micrograms Nestorone and 15 Micrograms Ethinyl Estradiol to an Oral Contraceptive Containing 150 Micrograms of Levonorgestrel and 30 Micrograms of Ethinyl Estradiol Per Tablet on Hepatic Factors Including Coagulation Factors
2 other identifiers
interventional
50
1 country
1
Brief Summary
The purpose of this 3-month (cycle) study was to evaluate the effects of hormonal contraceptives containing a progestin and an estrogen on liver proteins and coagulation factors that are sensitive to estrogen. In this study, a contraceptive vaginal ring containing Nestorone® (a progestin with no androgenic properties) and ethinyl estradiol was compared to an oral contraceptive containing levonorgestrel (an androgenic progestin) and ethinyl estradiol.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2
Started Mar 2003
Shorter than P25 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 1, 2003
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2004
CompletedFirst Submitted
Initial submission to the registry
September 13, 2005
CompletedFirst Posted
Study publicly available on registry
September 21, 2005
CompletedAugust 14, 2017
August 1, 2017
September 13, 2005
August 11, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Comparison of the differences between contraceptive vaginal ring and oral contraceptive treatment groups in change from baseline to end of treatment in serum angiotensinogen and sex-hormone binding globulin.
Secondary Outcomes (1)
Comparison of the differences between contraceptive vaginal ring & oral contraceptive treatment groups in change from baseline to end of treatment in serum or plasma concentrations of 15 other hepatic proteins, coagulation factors & coagulation markers.
Interventions
Eligibility Criteria
You may qualify if:
- Healthy women, aged 18-34 years, who did not wish to become pregnant for 3 months (or 5 months if first discontinuing oral contraceptives
- Intact uterus and at least 1 ovary
- Have regular menstrual cycles (28 ± 7 days) or 2 regular cycles after parturition or abortion
- Willing to use condoms while having sexual intercourse during the 3 month study (or 5 months if discontinuing oral contraceptives), or
- Willing to continue use of a specified non-hormonal method of birth control including permanent sterilization, non-hormone-containing IUD, male condoms, or abstinence during the study or to use condoms if discontinuing one of these methods
- Willing and able to comply with the protocol
- Willing and able to sign informed consent prior to entry into the study and prior to discontinuing another method of contraception
- Easy venous access
You may not qualify if:
- Pregnancy
- Known hypersensitivity to estrogens or progestins
- Known hypersensitivity to silicone rubber
- Undiagnosed vaginal discharge or vaginal lesions or abnormalities
- Smoking status: \>15 cigarettes per day
- Breastfeeding
- Current or past thrombophlebitis or thromboembolic disorders
- Family history of venous thrombosis or embolism (1st degree relatives \<55 years of age)
- Known history of Factor V Leiden or positive screening test for APC-resistance
- Current or past cerebrovascular or coronary artery disease
- Carcinoma (hormone-dependent tumor; past history of any carcinoma not in remission for \>5 years)
- Medically diagnosed severe depression
- Headaches with focal neurological symptoms
- Undiagnosed abnormal genital bleeding
- History of cholestatic jaundice of pregnancy or jaundice with prior steroid use
- +10 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Center for Human Drug Research
Leiden, Netherlands
MeSH Terms
Interventions
Study Officials
- PRINCIPAL INVESTIGATOR
Regine Sitruk-Ware, MD
Population Council
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
Study Record Dates
First Submitted
September 13, 2005
First Posted
September 21, 2005
Study Start
March 1, 2003
Study Completion
February 1, 2004
Last Updated
August 14, 2017
Record last verified: 2017-08