Multi-organ Imaging of Microvascular and Metabolic Function

May 18, 2026 updated by: Kevin, Chung, Massachusetts General Hospital
What if heart disease starts outside the heart? This research will study how to simultaneously assess brain and body physiology, how they are jointly related to heart function, and how their response to physical and mental stress differs in patients with heart disease.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

60

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 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

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Adults aged 18 years and older
  • For patients with cardiovascular disease: Documented diagnosis of ischemic heart disease based on standard clinical, radiologic, and/or histopathologic criteria, as documented in the medical record; or a clinical nuclear cardiac stress PET test within 1 year.
  • For healthy subjects: No diagnosis of cardiometabolic disease, cancer, or other major disease within the past 5 years

Exclusion Criteria:

  • Contraindications to PET due to:

    1. Research-related radiation exposure exceeding current MGB Radiology Department guidelines (i.e., 50 mSv in the prior 12 months);
    2. Inability to lie comfortably on the bed inside the scanner;
    3. Body weight > 300 lbs (weight limit of the scanner table);
    4. Pregnancy or breastfeeding;
  • Individuals with fasting plasma glucose level of >200 mg/dL;
  • Claustrophobia
  • Employed under the direct supervision of the PI conducting the research.

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Dynamic PET/CT scan
Each subject will undergo one or more dynamic PET/CT scans with various acute stressors
Drug: 18F-FDG
Dynamic 18F-FDG PET
Device: Positron Emission Tomography (PET)
Panorama GS PET/CT

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Blood flow responses
Time Frame: During the procedure
The primary endpoint is to evaluate if blood flow responses to acute stressors can be quantitatively measured with 18F-FDG
During the procedure

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Glucose metabolism responses
Time Frame: During the scan
The secondary endpoint is to evaluate if glucose metabolic responses to acute stressors can be quantitatively measured with 18F-FDG
During the scan

Collaborators and Investigators

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

Sponsor

Massachusetts General 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 (Estimated)

July 1, 2026

Primary Completion (Estimated)

July 1, 2031

Study Completion (Estimated)

July 1, 2031

Study Registration Dates

First Submitted

May 18, 2026

First Submitted That Met QC Criteria

May 18, 2026

First Posted (Actual)

May 22, 2026

Study Record Updates

Last Update Posted (Actual)

May 22, 2026

Last Update Submitted That Met QC Criteria

May 18, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2026P001016

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

Yes

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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