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Levonorgestrel-releasing Intrauterine Device on Obese Women: Effects on Hemostatic and Arterial Function

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01320917
Recruitment Status : Unknown
Verified July 2009 by University of Sao Paulo.
Recruitment status was:  Active, not recruiting
First Posted : March 23, 2011
Last Update Posted : April 4, 2011
Information provided by:
University of Sao Paulo

Brief Summary:

Obesity is a disorder associated with metabolic dysfunction and changes in cardiovascular risk markers; the use of oral contraceptives (OCs) may exert a further negative effect on these alterations in patients with PCOS.

To assess the effects on arterial function and structure and hemostatic parameters using an levonorgestrel intrauterine device (IUS-LNG) in women with obesity

A randomized controlled clinical trial.

Condition or disease Intervention/treatment Phase
Contraception Desired Obesity Device: Levonorgestrel releasing device Device: Cu-IUD insertion Phase 4

Detailed Description:

Setting: Academic hospital.

88 women between 18 and 40 years of age with obesity (BMI between 20 and 40 kg/m2)randomized to use IUS-LNG or Copper-IUD for 12 months

Exclusion criteria: category 3 and 4 Medical Eligibility Criteria for IUD-Cu and IUS-LNG - WHO-2010, pregnancy, lactation, concomitant drugs, smoking.

Main Outcome Measures: Brachial artery flow-mediated vasodilation, carotid intima-media thickness and the carotid artery stiffness index were evaluated at baseline and after 6 and 12 months. Serum markers of cardiovascular disease and hemostatic parameters will be also analyzed.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 88 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Levonorgestrel-releasing Intrauterine Device Effects on Hemostatic and Arterial Function of Obese Women
Study Start Date : February 2009
Estimated Primary Completion Date : July 2011
Estimated Study Completion Date : September 2011

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Active Comparator: LNG-IUS
Insertion of a LNG-IUS device
Device: Levonorgestrel releasing device
LNG-IUD device releases levonorgestrel in circulation

Placebo Comparator: Cu-IUD
Insertion of a Cu-IUD
Device: Cu-IUD insertion
The action of a Cu-IUD does not release any hormonal compound

Primary Outcome Measures :
  1. Arterial function and structure [ Time Frame: 6 and 12 months of following ]
    Brachial artery flow-mediated vasodilation, carotid intima-media thickness and the carotid artery stiffness index

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 40 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Women 18 to 40 years of age with obesity grade I and II who wished to use a contraceptive

Exclusion Criteria:

  • any clinical conditions corresponding to category 3 or 4 of the World Health Organization medical eligibility criteria for IUD-LNG or IUD-CU use smoking
  • alcoholism
  • illicit drug use
  • any systemic disease (systemic arterial hypertension, DM, immune system diseases or thyroid diseases) except PCOS
  • current or previous (up to two months before the study) use of oral, vaginal, monthly injectable or transdermal combined hormonal contraceptives current or previous use (up to six months before the study) of a long-lasting hormonal contraceptive method (injectable, implant or intrauterine device)
  • twelve weeks or less since childbirth
  • currently breastfeeding or had stopped breastfeeding within two months of the screening visit
  • chronic and/or acute inflammatory processes
  • use of drugs known to interfere with inflammatory markers or with CVD risk (anti-androgens, hypoglycemic drugs, anti-inflammatory drugs or statins)

Information from the National Library of Medicine

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 identifier (NCT number): NCT01320917

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Hospital das Clinicas de Ribeirao Preto, Departamento Ginecologia e Obstetricia
Ribeirao Preto, SP, Brazil, 14049900
Sponsors and Collaborators
University of Sao Paulo
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Rui Alberto Ferriani, University of Sao Paulo Identifier: NCT01320917    
Other Study ID Numbers: MIR-01
First Posted: March 23, 2011    Key Record Dates
Last Update Posted: April 4, 2011
Last Verified: July 2009
Keywords provided by University of Sao Paulo:
contraceptives hormonal
levonorgestrel-releasing intrauterine device
cardiovascular risk
Additional relevant MeSH terms:
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Nutrition Disorders
Body Weight
Contraceptive Agents, Female
Contraceptive Agents
Reproductive Control Agents
Physiological Effects of Drugs
Contraceptives, Oral, Synthetic
Contraceptives, Oral