Continuous Oral Contraceptives (COCs): Are Bleeding Patterns Dependent on the Hormones Given?
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ClinicalTrials.gov Identifier: NCT00120913 |
Recruitment Status :
Completed
First Posted : July 19, 2005
Last Update Posted : July 19, 2005
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Breakthrough Bleeding | Drug: Birth control pills | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Enrollment : | 160 participants |
Allocation: | Randomized |
Intervention Model: | Single Group Assignment |
Masking: | Double |
Primary Purpose: | Prevention |
Study Completion Date : | August 2004 |
- Bleeding patterns
- Satisfaction, menstrual-associated symptoms

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Ages Eligible for Study: | 18 Years to 49 Years (Adult) |
Sexes Eligible for Study: | Female |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Age > 18 to 49 years old
- Good general health
- No medical contraindications to combined COC therapy.
- In addition, all participants were required to have taken cyclic COCs for at least three months at the time of enrollment, in order to avoid common transition bleeding with the initiation of COCs.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00120913
United States, Oregon | |
OHSU | |
Portland, Oregon, United States, 97239 |
Principal Investigator: | Alison B Edelman, MD, MPH | Oregon Health and Science University |
ClinicalTrials.gov Identifier: | NCT00120913 |
Other Study ID Numbers: |
OHSU IRB 7198 |
First Posted: | July 19, 2005 Key Record Dates |
Last Update Posted: | July 19, 2005 |
Last Verified: | July 2005 |
Breakthrough bleeding while taking continuously dosed oral contraceptives |
Metrorrhagia Hemorrhage Pathologic Processes Uterine Hemorrhage Uterine Diseases Contraceptives, Oral |
Contraceptives, Oral, Combined Contraceptive Agents, Female Contraceptive Agents Reproductive Control Agents Physiological Effects of Drugs |