A Postmarketing Study of the Risk of Venous Thromboembolism (Blood Clots), Myocardial Infarction (Heart Attacks), and Stroke Among Women Using ORTHO EVRA (Norelgestromin and Ethinyl Estradiol Contraceptive Patch) Compared With Women Who Take Oral Contraceptives for Birth Control


Phase N/A Results N/A

Summary of Purpose

The purpose of the study is to use data from a health care information database to assess the risk of venous thromboembolism (blood clots), myocardial infarction (heart attacks), and stroke among women using a transdermal contraceptive system (ORTHO EVRA) for birth control compared with women using norgestimate-containing oral contraceptives with 35 mcg ethinyl estradiol.

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Trial Milestones

The following dates are available for this trial. Trial information last updated on 15 July 2016.

1 Apr 2002 15 Sep 2006 1 Oct 2008 1 Oct 2008 1 Jul 2016 Unavailable
Start Date First Received 1st Completion Completion Verification Results

Trial Design

  • Observation: Case Control
  • Perspective: Retrospective
  • Sampling: Non-Probability Sample


Not available