Study to Evaluate the Safety and Efficacy of Two Contraceptive Vaginal Rings Delivering a Daily Dose of 1500 or 2500 μg of CDB-2914
A Phase 2, Randomized Study to Evaluate the Safety and Efficacy of Two Contraceptive Vaginal Rings Delivering a Daily Dose of 1500 or 2500 μg of CDB-2914 on Inhibition of Ovulation, Endometrial Changes and Bleeding Patterns in Normal Cycling Women
1 other identifier
interventional
55
3 countries
3
Brief Summary
The purpose of this study is to to determine pharmacodynamic effects of a vaginal ring delivering either 1,500 or 2,500 μg of CDB-2914 per day during 6 months of treatment on:
- 1.follicular function and inhibition of ovulation
- 2.the endometrium
- 3.bleeding patterns; and also to assess safety including effects on the endometrium
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 Oct 2008
Longer than P75 for phase_2
3 active sites
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
October 1, 2008
CompletedFirst Submitted
Initial submission to the registry
November 13, 2008
CompletedFirst Posted
Study publicly available on registry
November 14, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2014
CompletedAugust 15, 2017
August 1, 2017
5.9 years
November 13, 2008
August 11, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The primary efficacy variable will be ovulation suppression measured by progesterone serum levels.
All women will use the assigned CVR for 6 months
Secondary Outcomes (2)
Regular follow-up of follicle diameter will be made with USS to determine the timing of ovulation or, in the absence of ovulation, the fate of the dominant follicle.
All women will use the assigned CVR for 6 months
Clinical safety will be evaluated and the effects on the endometrium will be measured.
All women will use the assigned CVR for 6 months
Study Arms (2)
1
ACTIVE COMPARATORContraceptive Vaginal Ring delivering a daily dose of 1500 μg of CDB-2914
2
ACTIVE COMPARATORContraceptive Vaginal Ring delivering a daily dose of 2500 μg of CDB-2914
Interventions
Eligibility Criteria
You may qualify if:
- Healthy women of reproductive age (21-40 years)
- Not at risk for pregnancy based on one of the following
- subject has undergone sterilization
- subject is monogamous and her male partner has undergone sterilization
- subject agrees to be abstinent for the entire duration of the study (Oregon site only)
- subject does not have sex with men (Oregon site only)
- Have regular menstrual cycles of 25-35 days duration
- Have an intact uterus and both ovaries
- Will be able to comply with the protocol
- Capable of giving informed consent
You may not qualify if:
- Women participating in another clinical trial
- Women not living in the catchment area of the clinic
- Known hypersensitivity to progestins or antiprogestins
- Known hypersensitivity to silicone rubber
- Any chronic disease
- All contraindications to oral contraceptive use, including
- Thrombophlebitis or thromboembolic disorders
- Past history of deep vein thrombophlebitis or thromboembolic disorders
- Past or current cerebrovascular or coronary artery disease
- Migraine with focal aura
- Known or suspected carcinoma of the breast
- Carcinoma of the endometrium or other known or suspected estrogen-dependent neoplasia
- Undiagnosed abnormal genital bleeding
- Cholestatic jaundice of pregnancy or jaundice with prior pill use
- Hepatic adenomas or carcinomas
- +26 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Oregon Health & Science University
Portland, Oregon, 97239, United States
Instituto Chileno de Medicina Reproductiva
Santiago, Chile
Profamilia
Santo Domingo, Dominican Republic
MeSH Terms
Interventions
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 13, 2008
First Posted
November 14, 2008
Study Start
October 1, 2008
Primary Completion
September 1, 2014
Study Completion
September 1, 2014
Last Updated
August 15, 2017
Record last verified: 2017-08