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The Effect of a Levonorgestrel-releasing Intrauterine Device (IUD) Versus a Copper Containing IUD on Risk of Blood Clots

Blood Coagulation Disorders Clinical Trial

Official title:
The Effect of a Levonorgestrel-releasing Intrauterine Device Versus a Copper Containing Intrauterine Device on Coagulation Parameters

Clinical Trial Summary

This is a randomized controlled trial to assess the effect of a levonorgesterel-releasing intrauterine device (LNG IUD, Mirena®) versus a copper IUD (Paraguard®) on coagulation parameters known to be associated with risk of thrombosis (blood clots). Both the LNG IUD and the copper IUD are FDA approved devices for contraception.

Women enrolled in this study will be randomized to receive either the LNG IUD or the copper IUD. They will complete a one month bleeding diary prior to insertion of the IUD and again for one month while the IUD is in place. They will undergo phlebotomy (blood draw) at baseline (prior to insertion of the IUD), two and four months. Stored samples will be used to measure D-dimer, C-reactive protein (CRP), antithrombin (AT), factor VIIIc, activated partial thromboplastin time (aPTT) and activated partial thromboplastin time plus activated protein C (aPTT + APC). Both groups will undergo a GYN exam with screening for bacterial vaginosis and gonorrhea/chlamydia cultures prior to insertion of the IUD. A brief survey to assess the women's experience with the IUD, including symptomatology and satisfaction with the device, will be conducted at the four months after insertion.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00584610
Study type Interventional
Source University of Vermont
Contact Penny Fairhurst, RN
Phone 802-847-0985
Email penny.fairhurst@vtmednet.org
Status Recruiting
Phase N/A
Start date December 2007
Completion date July 2012
View Details
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