Endocrine Disruption, Menopause, and Poor Sleep in wOmen With Type 2 Diabetes: Effects on Cardiovascular Health (EMPOWER)

March 17, 2026 updated by: Ottawa Heart Institute Research Corporation
EMPOWER aims to determine the overall effect of menopause and sleep disruption on cardiac remodeling in women with type 2 diabetes.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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

The EMPOWER prospective cohort study is part of a larger project. This interdisciplinary project will utilize animal models, clinical cohorts, epidemiological datasets and data from randomized control trials to explore the hypothesis that sleep disruption and menopause-induced hormonal changes synergistically increase systemic inflammation and impair incretin signaling, leading to worsened cardiac function, heightened cardiometabolic dysfunction, and accelerated CVD risk.

The EMPOWER study aims to determine the cumulative effect of multiple exposures including menopause progression and sleep disruption on subclinical cardiac remodeling in women with T2DM in the perimenopausal transition and if these relationships are moderated by T2DM management, Body Mass Index (BMI), or inflammation.

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.
381

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.

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

Non-Probability Sample

Study Population

The study population will be selected from patients at the University of Ottawa Heart Institute, The Ottawa Hospital, and from within the Ottawa and surrounding area community.

Description

Inclusion Criteria:

  • Female Sex
  • Age range 48-58 years
  • In menopausal transition phase (pre-menopause or peri-menopause)
  • Diagnosis of Type 2 Diabetes Mellitus
  • Have access to and regularly use a smartphone with internet access

Exclusion Criteria:

  • Male Sex
  • Currently Pregnant
  • Prior history of total hysterectomy or bilateral oophorectomy
  • Prior diagnosis of any of the following:

Coronary Vascular Disease (CVD) including coronary heart disease, heart failure, congenital heart disease stroke/transient ischemic attack, valvular heart disease, peripheral vascular disease, aortapathy, atrial fibrillation or flutter, other CVD.

- Untreated serious mental illness (e.g, untreated psychosis).

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.
Evaluation
This is a non-randomized study following individuals in perimenopause with type 2 diabetes. The population will follow a 4 evaluation/observation period with associated questionnaires and medical exams, including bloodwork and cardiac echo.
Other: 4 years of clinical evaluations.
The intervention in this study is the additional clinical evaluations for women with type 2 DM and in perimenopause.

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
Reduced septal e' velocity
Time Frame: Baseline to 4 years.
Indicates impaired relaxation of the left ventricle during early diastole; key marker for diastolic dysfunction. Measured by echocardiography.
Baseline to 4 years.
Increased E/e' ratio
Time Frame: Baseline to 4 years.
Indicates elevated left ventricular filling pressure; key marker for diastolic dysfunction. Measured by echocardiography.
Baseline to 4 years.
Increased tricuspid regurgitation (TR) velocity
Time Frame: Baseline to 4 years.
Indicates elevated right ventricular systolic pressure or pulmonary hypertension. Measured by echocardiography.
Baseline to 4 years.
Change in pulmonary artery systolic pressure (PASP)
Time Frame: Baseline to 4 years.
Measures the pressure in the pulmonary artery when the heart beats. Measured by echocardiography.
Baseline to 4 years.
Change in E/A ratio
Time Frame: Baseline to 4 years.
Decrease of E/A ratio below 1 indicates diastolic dysfunction, and an increase of E/A ratio over 2 indicates advance failure. Measured by echocardiography.
Baseline to 4 years.
Change in left atrial size
Time Frame: Baseline to 4 years.
Left Atrial Enlargement (LAE) is abnormal stretching or widening of the upper left heart chamber, typically caused by chronic pressure or volume overload. Measured by echocardiography.
Baseline to 4 years.

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
Decline in left ventricular global longitudinal strain (GLS)
Time Frame: Baseline to 4 years.
Detects heart muscle dysfunction. Measured by echocardiography.
Baseline to 4 years.
Decline in left atrial strain
Time Frame: Baseline to 4 years.
Indicates left ventricular diastolic dysfunction, heart failure with preserved ejection fraction, and atrial fibrillation. Measured by echocardiography.
Baseline to 4 years.

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.
Ottawa Heart Institute Research Corporation

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Kerri Anne Mullen, Ph.D., Ottawa Heart Institute Research Corporation

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 (Estimated)

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.
April 1, 2026

Primary Completion (Estimated)

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.
December 1, 2032

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.
December 1, 2032

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 17, 2026

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 17, 2026

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 23, 2026

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.
March 23, 2026

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.
March 17, 2026

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.
January 1, 2026

More Information

Terms related to this study

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.
  • 20260060-01H

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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