Oral Contraceptive (OC) Progestin Dose and Breast Proliferation

The purpose of this research study is to gain a better understanding of the changes that may occur in the breast when a woman uses an oral contraceptive (birth control pill). Some research indicates that women who use birth control pills with lower amounts of progestin (a hormone in the birth control pill) may have lower breast cell growth than women who use birth control pills with a higher...

Date First Received: September 3, 2009

Last Updated: September 4, 2009

Verified by: USC/Norris Comprehensive Cancer Center, September 2009

Clinical Trial Phase: N/A | Start Date: August 2007

Overall Status: Completed

Estimated Enrollment: 40

Brief Summary

Official Title: “Evaluating the Effect of Oral Contraceptive Progestin Dose on Breast Epithelial Cell Proliferation”

Condition Keyword(s):

Additional Keyword(s) Provided by Sponsor:

Intervention MeSH Term(s), Assigned with an Experimental Algorithm:

The purpose of this research study is to gain a better understanding of the changes that may occur in the breast when a woman uses an oral contraceptive (birth control pill). Some research indicates that women who use birth control pills with lower amounts of progestin (a hormone in the birth control pill) may have lower breast cell growth than women who use birth control pills with a higher amount of progestin; this research will examine that in detail.

Study Type: Interventional

Study Design: Allocation: Randomized, Control: Dose Comparison, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Basic Science

Study Primary Completion Date: November 2008

Intervention(s) in this Clinical Trial

  • Drug: Oral Contraceptive: Ortho-Novum® 1/35
  • Drug: Oral Contraceptive: Ovcon Fe®

Arms, Groups and Cohorts in this Clinical Trial

  • Active Comparator: Ortho-Novum® 1/35
    • Ortho-Novum® 1/35 is an oral contraceptive that contains more progestin.
  • Active Comparator: Ovcon Fe®
    • Ovcon Fe® is an oral contraceptive that contains less progestin.

Outcome Measures for this Clinical Trial

Primary Measures

  • To measure breast cell proliferation levels between the two oral contraceptive dose groups.
    • Safety Issue?: No

Criteria for Participation in this Clinical Trial

Inclusion Criteria:

  • 1. Age 18-34.
  • 2. Premenopausal.
  • 3. Currently taking or want to start oral contraceptives for contraception
  • 4. Non-smoker.
  • 5. Competent to give informed consent (as judged by the investigator).
  • 6. Provided written informed consent.
  • 7. Willingness to refrain from smoking and consumption of grapefruit or grapefruit juice during the study (grapefruit interferes with metabolism of exogenously administered
  • OCs).
  • Exclusion Criteria:1.
  • 1. Abnormal breast examination.
  • 2. History or current therapeutic or prophylactic use of anticoagulants.
  • 3. Known bleeding disorder or history of unexplained bleeding or bruising.
  • 4. History of breast cancer or previous diagnostic breast biopsy.
  • 5. Known allergy to local anesthetic.
  • 6. Currently pregnant or pregnant within the previous 6 months.
  • 7. Having any standard contra-indication to being prescribed OCs.

Gender Eligibility for this Clinical Trial: Female

Minimum Age for this Clinical Trial: 18 Years

Maximum Age for this Clinical Trial: 34 Years

Are Healthy Volunteers Accepted for this Clinical Trial?: Accepts Healthy Volunteers

Clinical Trial Sponsor Information

Lead Sponsor: USC/Norris Comprehensive Cancer Center

Overall Clinical Trial Officials and Contacts

DeShawn Taylor, M.D. Principal Investigator University of Southern California  

Additional Information

Information obtained from ClinicalTrials.gov on September 01, 2010

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00972439

Study ID Number: HS-07-00269

ClinicalTrials.gov Identifier: NCT00972439

Health Authority: United States: Institutional Review Board

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