Mechanisms of Diastolic Dysfunction Among Persons With HIV Compared With Non-HIV Control Subjects

October 11, 2019 updated by: Tomas Neilan, MD, Massachusetts General Hospital
In this study, investigators plan to test two potential mechanisms contributing to diastolic dysfunction among asymptomatic persons with HIV who are on cART. The first proposed mechanism is that heightened systemic immune activation/inflammation in HIV contributes to myocardial inflammation, which in turn promotes myocardial fibrosis. The second mechanism is that ectopic fat deposition (increased visceral adiposity) in HIV relates to increased intramyocardial lipid content, which in turn contributes to diastolic dysfunction. Both HIV positive and HIV-negative participants will undergo cardiac MRI/ MRS imaging studies for evaluation of myocardial fibrosis, myocardial inflammation, and intramyocardial lipid content. Traditional markers of CVD risk, inflammatory markers/immune, hormonal markers, and markers of myocardial stretch/injury will be assessed in relation to cardiac MRI/MRS outcomes. Additionally, a small subset of participants with HIV will undergo longitudinal evaluations to assess effects of a clinically prescribed hormonal therapy on myocardial structure and function.

Study Overview

Status

Status

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

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.

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 (Anticipated)

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.
48

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
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Massachusetts General Hospital

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

40 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

HIV positive and HIV negative participants

Description

HIV positive subjects

Inclusion Criteria:

  • age ≥40 and ≤75 years
  • documented HIV infection
  • participant report that combination antiretroviral therapy (cART) (any regimen) has been taken stably without > 4 week interruption for at least 180 days prior to study entry (report of switching regimens in that time frame is permissible)

Exclusion Criteria:

  • CD4 < 100 cell/mm3
  • current active AIDS-defining illness
  • current active or recent (not fully resolved within 30 days prior to study entry) systemic bacterial, fungal, parasitic, or viral infections (except HIV, HBV, human papillomavirus [HPV], or HCV)
  • current active cancer
  • clinical ASCVD, as defined by 2013 ACC/AHA guidelines (including previous diagnosis of AMI, ACS, stable or unstable angina, coronary or other arterial revascularization, stroke, TIA, PAD), by subject report
  • clinical diagnosis of HFpEF or HFrEF, by subject report
  • diagnosed DM on antihyperglycemic medication
  • current, active use of immune suppressant medication including oral or intravenous corticosteroid or injectable biologic (oral ASA or NSAID use permitted)
  • eGFR <45 ml/min/1.73 m2 calculated by CDK-EPI
  • standard contraindications to MRI procedure based on MGH MRI Patient Procedure Screening Form - including history of severe allergy to gadolinium
  • use of lipid lowering agents including statin drugs, fibrates, ezetimibe, red yeast rice, niacin or omega-3 fatty acids (>3 grams/day in standalone formulations) in the 90 days prior to study entry
  • use of ACE inhibitor, ARB, or aldosterone receptor blocker in the 90 days prior to study entry
  • pregnancy or breastfeeding (female subjects of reproductive potential)
  • other medical, psychiatric, or psychological condition that, in the opinion of the study investigator, would interfere with completion of study procedures

HIV negative subjects:

Inclusion Criteria:

• age ≥40 and ≤75 years

Exclusion Criteria:

  • HIV infection
  • current active or recent (not fully resolved within 30 days prior to study entry) systemic bacterial, fungal, parasitic, or viral infections (except HIV, HBV, human papillomavirus [HPV], or HCV)
  • current active cancer
  • clinical ASCVD, as defined by 2013 ACC/AHA guidelines (including previous diagnosis of AMI, ACS, stable or unstable angina, coronary or other arterial revascularization, stroke, TIA, PAD), by subject report
  • clinical diagnosis of HFpEF or HFrEF, by subject report
  • diagnosed DM on antihyperglycemic medication
  • current, active use of immune suppressant medication including oral or intravenous corticosteroid or injectable biologic (oral ASA or NSAID use permitted)
  • eGFR <45 ml/min/1.73 m2 calculated by CDK-EPI
  • standard contraindications to MRI procedure based on MGH MRI Patient Procedure Screening Form - including history of severe allergy to gadolinium
  • use of lipid lowering agents including statin drugs, fibrates, ezetimibe, red yeast rice, niacin or omega-3 fatty acids (>3 grams/day in standalone formulations) in the 90 days prior to study entry
  • use of ACE inhibitor, ARB, or aldosterone receptor blocker in the 90 days prior to study entry
  • pregnancy or breastfeeding (female subjects of reproductive potential)
  • other medical, psychiatric, or psychological condition that, in the opinion of the study investigator, would interfere with completion of study procedures

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.
HIV-negative
Other: Cardiac MRI/MRS
HIV-positive
Other: Cardiac MRI/MRS

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
Time Frame
Extracellular Volume (ECV), a measure of myocardial fibrosis on Cardiac MRI
Time Frame: 3 weeks
3 weeks

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
Time Frame
Myocardial Inflammation on Cardiac MRI
Time Frame: 3 weeks
3 weeks
Intramyocardial fat on Cardiac MRI/MRS
Time Frame: 3 weeks
3 weeks
Diastolic function on Cardiac MRI
Time Frame: 3 weeks
3 weeks
Visceral Adiposity on MRI
Time Frame: 3 weeks
3 weeks
Inflammation/ immune markers
Time Frame: 3 weeks
3 weeks
Hormonal markers
Time Frame: 3 weeks
3 weeks
Markers of myocardial stretch
Time Frame: 3 weeks
3 weeks

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.
Massachusetts General Hospital

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
President and Fellows of Harvard College
Nutrition Obesity Research Center at Harvard

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

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.
August 1, 2016

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.
August 1, 2019

Study Completion (Actual)

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.
August 1, 2019

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).
August 12, 2016

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.
August 17, 2016

First Posted (Estimate)

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.
August 22, 2016

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.
October 15, 2019

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.
October 11, 2019

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.
October 1, 2019

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.
  • 2015P000200

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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