Hormonal Contraception and Risk of Chlamydia and Gonorrhea

Hormonal Contraception, Cervical Ectopy, and STDs

There are biological reasons to suspect that hormones may affect the risk of a woman becoming infected with a sexually transmitted disease. The evidence on this issue to date is mixed and previous studies have methodologic flaws making it difficult to draw conclusions about the results.

This study compares the risk of developing either Chlamydial or Gonorrheal infection among three groups of women: those using combined oral contraceptives (birth control pills); those using the injectable hormone (brand name Depo Provera); and those women using non-hormonal contraceptive methods.

Study Overview

Detailed Description

The study was designed to examine the relationship between hormonal contraceptive use and possible increased risk of Chlamydial and Gonococcal sexually transmitted infections, and to determine if any increased risk appeared to be mediated by the extent of cervical ectopy.

Eight hundred and nineteen women, ages 15 to 45 years, were recruited from an inner city clinic and from a nearby suburban clinic. The women were classified into three groups based on type of contraceptive used. One group used oral contraceptives; the second used injectable depo-medroxyprogesterone acetate (DMPA); and the third group used non-hormonal contraceptive methods. Women from each group were followed at 3, 6, and 12 months after enrollment to determine if a new infection with Chlamydia or Gonorrhea had occurred and to evaluate the extent of cervical ectopy present.

Study Type

Observational

Enrollment

1200

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

13 years to 43 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Female age 15 to 45 years
  • no hormone use at enrollment
  • not pregnant or planning pregnancy

Exclusion Criteria:

  • Cervical cancer presently or in history
  • hysterectomy, cone biopsy, or cervical cryotherapy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Defined Population
  • Time Perspectives: Prospective

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Charles Morrison, Ph.D., Family Health International, RTP, N.C.
  • Principal Investigator: Paul Blumenthal, M.D., Maryland Planned Parenthood

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 1997

Study Completion

August 1, 2001

Study Registration Dates

First Submitted

September 16, 2004

First Submitted That Met QC Criteria

September 17, 2004

First Posted (Estimate)

September 20, 2004

Study Record Updates

Last Update Posted (Estimate)

November 7, 2005

Last Update Submitted That Met QC Criteria

November 4, 2005

Last Verified

September 1, 2004

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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