NCT01590849

Assessment of Autonomic Tone in Normotensive Women Using Combined Hormonal Oral Contraceptive Containing Drospirenone

• Status: Unknown
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 69 (actual)
• Sponsor: Instituto do Coracao · Other Government
• Sex: Female
• Age: 20 Years – 40 Years
• Healthy volunteers: Accepted

Summary

The use of combined oral contraceptives has been associated with increased risk of adverse cardiovascular events. The exact mechanism by which these drugs exert this influence is uncertain. It is possible that changes in autonomic nervous system are involved. The objective of these study was to evaluate the effect of the use of a contraceptive containing 20 mcg of ethinyl estradiol and 3mg of drospirenone in the autonomic nervous system in healthy women. Few studies have been conducted in the field of hormonal contraception and evaluation of the autonomic nervous system work and no prospective, controlled study was published so far. These study will be the first.

Conditions

• Contraceptive Affecting the Autonomic Nervous System
• Contraceptive Affecting Blood Pressure

Interventions

Type	Name	Description
DRUG	Contraceptives, Oral, Combined (Yaz®)	After a counseling session concerning the advantages, disadvantages and side effects of contraceptive methods (COC or nonhormonal methods), the volunteers were divided into two study groups according to the method they chose to use as follows: * Case group: healthy women, users of COC containing 20 mcg ethynil estradiol and 3 mg drospirenone , 24 days of active pills, 4 days of pill-free interval (n=40). * Control group: healthy women, users of nonhormonal methods of contraception (condoms or copper IUD) (n=40). Subjects were tested once before the introduction of the contraceptive method and again after 6 months of its use.

Timeline

• Start date: 2011-01-01
• Primary completion: 2012-05-01
• First posted: 2012-05-03
• Last updated: 2012-05-03

Locations

1 site across 1 country: Brazil