Cardiovascular and Endothelial Markers During OGTT Before and at Six and Twelve Months Post-treatment in Women With PCOS

November 15, 2025 updated by: VAIA LAMBADIARI, Attikon Hospital

The Effect of Different Treatment Options on Markers of Vascular, Myocardial and Endothelial Function in Women With Polycystic Ovary Syndrome and the Association With Metabolic and Hormonal Abnormalities of the Syndrome

The aim of the present study is to investigate a) the presence of subclinical markers of vascular, myocardial and endothelial function in women with PCOS b) the acute alterations in these markers during the oral glucose tolerance test (OGTT) c) the impact of potential treatment interventions in these markers.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

All the woman who will recruited in the study will undergo OGTT. At 0, 60, and 120 min of glucose load the investigators will measure: a) glucose and insulin, b) pulse wave velocity (PWV) c) augmentation index (Aix) and d) perfused boundary region of sublingual microvessels (high PBR values represent reduced glycocalyx thickness). At 0 and 120 min of glucose load, the investigators will assess: a) coronary flow reserve (CFR) using Doppler echocardiography, b) LV longitudinal strain (LS) of subendocardial, mid-myocardial and subepicardial layers and global LS (GLS) c) peak twisting (pTw), untwisting velocity (pUtwVel) by speckle tracking echocardiography d) flow mediated dilation (FMD) of the brachial artery, e) Carotid intima-media thickness. Matsuda index, insulin sensitivity index (ISI) and HOMA index will be also measured. The levels of Testosterone (Τesto), Sex hormone binding globulin (SHBG), dehydroepiandrosterone sulfate (DHEA-s), Prolactin (PRL), 17-hydroxyprogesterone (17-OH-PRG) ,Androstenedione (Δ4) and Metalloproteinase 9 will be also assessed. After six months of treatment intervention, the patient will undergo the previously described measurements. Primary Endpoints include the change in GLS, PWV, and PBR during OGTT and six months after treatment intervention. Secondary Endpoints include the change in CFR and FMD during OGTT and six months after treatment intervention.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
120

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Greece
      • Chaïdári, Greece, 124 62
        • Recruiting
        • Attikon University General Hospital
        • Contact:

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Women with PCOS

Description

Inclusion Criteria:

  1. Age > 16 years old

  2. Diagonis of PCOS according to Rotterdam criteria: presence of two of the three of the following:

    • Clinical or biochemical hyperandrogenism
    • Anovulation or oligo-ovulation
    • Polycystic ovarian morphology (PCOM)
  3. Absence of treatment for PCOS the last six months
  4. Patients who have the ability to understand and sign the consent form.

Exclusion Criteria:

  1. Disorders with clinical presentation similar to PCOS: thyroid disease, hyperprolactinemia, and non-classic congenital adrenal hyperplasia (primarily 21-hydroxylase deficiency by serum 17-hydroxyprogesterone [17-OHP]), Cushing syndrome, acromegaly
  2. Treatment with contraceptive or metformin
  3. Type 2 diabetes mellitus
  4. Treatment for diabetes
  5. Pregnancy
  6. Lactation
  7. Malignancy

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
GLP-1 agonists
30 women will receive lifestyle modification and GLP-1RA.
Drug: GLP-1 receptor agonist
30 women will receive lifestyle modification and GLP-1 receptor agonists
Oral contraceprives
30 women will receive lifestyle modification and OCP.
Drug: Oral contraceptive
30 women will receive lifestyle modification and oral contraceptive
Metformin
30 women will receive lifestyle modification and metformin
Drug: Metformin
30 women will receive lifestyle modification and metformin
Lifestyle Modification
30 women will receive only lifestyle modification
Other: Lifestyle modification
30 women will receive only lifestyle modification

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
The change in Metalloproteinase 9
Time Frame: six months
The change in Metalloproteinase 9 six months after tretament intervention
six months
Τhe change in Global Longitudinal Strain during Oral glucose Tolerance Test
Time Frame: 120 minute of Oral glucose Tolerance Test
Τhe change in Global Longitudinal Strain at 0 and 120 minute after glucose load
120 minute of Oral glucose Tolerance Test
The change in Pulse Wave Velocity during Oral glucose Tolerance Test
Time Frame: 120minute of Oral glucose Tolerance Test
The change in Pulse Wave Velocity at 0 and 120 minute after glucose load
120minute of Oral glucose Tolerance Test
The change in Perfused Boundary Region during Oral glucose Tolerance Test
Time Frame: 120minute of Oral glucose Tolerance Test
The change in Perfused Boundary Region at 0 and 120 minute after glucose load
120minute of Oral glucose Tolerance Test
The change in Global Longitudinal Strain
Time Frame: six months
The change in Global Longitudinal Strain 6 months after treatment intervention
six months
The change in Pulse Wave Velocity
Time Frame: six months
The change in Pulse Wave Velocity 6 months after treatment intervention
six months
The change in Perfused Boundary Region
Time Frame: six months
The change in Perfused Boundary Region 6 months after treatment intervention
six months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Τhe change in Coronary flow reserve during Oral glucose Tolerance Test
Time Frame: 120 min of Oral glucose Tolerance Test
Τhe change in Coronary flow reserve at 0 and 120 min after glucose load
120 min of Oral glucose Tolerance Test
Τhe change in Flow mediated Dilation during Oral glucose Tolerance Test
Time Frame: 120min of Oral glucose Tolerance Test
Τhe change in Flow mediated Dilation at 0 and 120 min after glucose load
120min of Oral glucose Tolerance Test
The change in Coronary flow reserve
Time Frame: six months
The change in Coronary flow reserve 6 months after treatment intervention
six months
The change in Flow mediated Dilation
Time Frame: six months
The change in Flow mediated Dilation 6 months after treatment intervention
six months

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Attikon Hospital

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2024

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 1, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 16, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 20, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 21, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 19, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 15, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PCOS_OGTT

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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