Compromised Microcirculation in Women With Polycystic Ovary Syndrome

July 1, 2016 updated by: Yale University
The scientific aims of the study are to determine how peripheral microcirculatory responsiveness is altered in obese women with Polycystic Ovary Syndrome (PCOS) during local heating and to determine the mechanism for testosterone effects on peripheral microcirculatory responsiveness in women with PCOS.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

In these studies, we propose to use the skin as a relatively non-invasive model to examine cardiovascular and endothelial function in obese women with and without PCOS. Data have indicated an important role for testosterone in influencing the peripheral microcirculation. While testosterone can lead to vasodilation in the peripheral microcirculation in both men and in women without PCOS, testosterone appears to induce vasoconstriction in women with PCOS. The differential response between women with and without PCOS, and between men and women may be the result of differential ET-1 actions in the vessel, and regulated by the receptor subtype is involved in these actions.

Study Type

Interventional

Enrollment (Actual)

28

Phase

  • Early Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Connecticut
      • New Haven, Connecticut, United States, 06520
        • John B. Pierce Laboratory

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

18 years to 35 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Obese women (18-35) years with and without PCOS

Exclusion Criteria:

  • Conditions that would preclude safe use of hormones

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

  • Primary Purpose: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
GNRH antagonist alone
Drug: ganirelix acetate
GnRH antagonist, subcutaneous injection, 0.25 mg/day for 21 days
Other Names:
  • Antagon
Experimental: 2
GnRH with Testosterone
Drug: methyl testosterone
testosterone, oral administration, day 5 of GnRH administration, 2.5 mg/day

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Skin blood flow and cutaneous vascular conductance
Time Frame: 6 non consecutive days
6 non consecutive days

Collaborators and Investigators

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

Sponsor

Yale University

Collaborators

National Heart, Lung, and Blood Institute (NHLBI)

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

February 1, 2008

Primary Completion (Actual)

April 1, 2012

Study Completion (Actual)

December 1, 2012

Study Registration Dates

First Submitted

September 22, 2008

First Submitted That Met QC Criteria

September 22, 2008

First Posted (Estimate)

September 23, 2008

Study Record Updates

Last Update Posted (Estimate)

July 4, 2016

Last Update Submitted That Met QC Criteria

July 1, 2016

Last Verified

July 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 0801003437
  • R21HL093450 (U.S. NIH Grant/Contract)

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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