- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04275453
Comparison of the Short-Term Effect of Dietary Carbohydrate Restriction Versus Exogenous Ketone Supplementation on Myocardial Glucose Suppression and Timing to Achieve a State of Ketosis Using FDG PET/CT Serial Imaging
July 15, 2020 updated by: University of Pennsylvania
The purpose of this study is to test different methods of preparation that can be used prior to a test called an FDG PET/CT scan.
FDG PET/CT scans are routinely done for evaluation of heart inflammation.
Standard preparation for the scan includes a ketogenic (high fat and low carbohydrate) diet for 24 hours and overnight fasting to help suppress the amount of sugar taken up in the heart muscle.
However, Investigator still do not know if this preparation is the most effective method.
So the Investigator, want to investigate alternative methods for decreasing the amount of sugar uptake seen in the heart during FDG PET/CT scan, thus, investigator will have participants try up to 3 different methods of preparation prior to the FDG PET/CT scans to see which type of preparation works the best.
Study Overview
Status
Recruiting
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Anticipated)
20
Phase
- Phase 2
- 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
-
-
Pennsylvania
-
Philadelphia, Pennsylvania, United States, 19104
- Recruiting
- University of Pennsylvania
-
Contact:
- Erin Schubert
- Phone Number: 215-573-6569
- Email: Erin.Schubert@uphs.upenn.edu
-
Contact:
- Zeinab Helili
- Phone Number: 215-746-3230
- Email: zeinab.helili@uphs.upenn.edu
-
-
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
16 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Adult patients, at least 18 years of age
- No history of cardiovascular disease, including hypertension, hyperlipidemia, coronary artery disease, cardiac surgery, arrhythmias per medical record review and/or self-report
- No history of diabetes mellitus, chronic liver or kidney disease per medical record review and/or self-report.
- Participants must be informed of the investigational nature of this study and provide written informed consent in accordance with institutional and federal guidelines prior to study-specific procedures.
Exclusion Criteria:
- Females who are pregnant or breast-feeding at the time of screening will not be eligible for this study. Female participants of child-bearing potential will have a urine or serum pregnancy test before the first study visit.
- Inability to tolerate imaging procedures in the opinion of the investigator or treating physician.
- Serious or unstable medical or psychological conditions that, in the opinion of the investigator would compromise the subject's safety or successful participation in the study.
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: Diagnostic
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Ketogenic diet - 24 hours
Subjects will undergo FDG PET/CT after 1 day of dietary modification (ketogenic diet for at least 3 meals) and 12 hours of fasting prior to FDG injection.
|
FDG is a FDA approved radiotracer which each subject will have 3 positron emission tomography/computed tomography (PET/CT) scan performed.
Subjects needs to be on Ketogenetic diet
|
Experimental: Ketogenic diet - 72 hours
Subjects will then undergo FDG PET/CT after 3 day of dietary modification (ketogenic diet for at least 9 meals) and 12 hours of fasting prior to FDG injection.
|
FDG is a FDA approved radiotracer which each subject will have 3 positron emission tomography/computed tomography (PET/CT) scan performed.
Subjects needs to be on Ketogenetic diet
|
Experimental: Exogenous ketone ester
Subjects will undergo FDG PET/CT after 1 dose of ketone drink administration after 12 hours of fasting prior to FDG injection.
The dosing of ketone drink administration (approximately 65 mL) will be weight based (714 mg/kg), which is crucial to replicating ketone levels between participants.
The KE drink will be administered approximately 45 minutes prior to FDG injection as concentrations of ~3 mmol/L are reached within 60 minutes .
By way of comparison, website marketing of the commercial drink recommends ingestion 30 minutes prior to athletic performance.
We will also perform echocardiography immediately before and 30 minutes after the drink.
|
FDG is a FDA approved radiotracer which each subject will have 3 positron emission tomography/computed tomography (PET/CT) scan performed.
Subjects will undergo FDG PET/CT after 1 dose of ketone drink administration after 12 hours of fasting prior to FDG injection.
The dosing of ketone drink administration (approximately 65 mL) will be weight based (714 mg/kg), which is crucial to replicating ketone levels between participants
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Comparing the myocardial glucose suppression in Ketogenetic diet vs. external Ketone supplement by looking at the FDG uptake using PET/CT
Time Frame: 3 years
|
Comparing the myocardial glucose suppression in Ketogenetic diet vs. external Ketone supplement by looking at the FDG uptake using PET/CT.
Images will be qualitative and semi-quantitatively assessed.
The entire right and left ventricular walls will be contoured in a dedicated nuclear medicine workstation (MIM Software) to create volume of interest s(VOI) and derive the maximum and mean standardized uptake value (SUV) and total glycolytic activity (TGA), all measures of glucose utilization.
Blood pool activity within the left ventricular cavity will be used as reference.
Complete myocardial suppression will be defined as FDG activity (by any measure) in the left ventricular wall lower than blood pool activity in the ventricular cavity.
|
3 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
The optimal duration of ketosis to produce myocardial suppression by looking at the FDG uptake using PET/CT by comparing the data out of 1 day keto diet Arm versus 3 days Keto diet Arm
Time Frame: 3 years
|
The optimal duration of ketosis to produce myocardial suppression by looking at the FDG uptake using PET/CT by comparing the data out of 1 day keto diet Arm versus 3 days Keto diet Arm.
|
3 years
|
Understanding the relationship between serum β-hydroxybutyrate (BHB) levels and myocardial glucose by looking at the FDG uptake using PET/CT by comparing the data out of keto diet Arm versus Ketone supplement Arm.
Time Frame: 3 years
|
Understanding the relationship between serum β-hydroxybutyrate (BHB) levels and myocardial glucose by looking at the FDG uptake using PET/CT by comparing the data out of keto diet Arm versus Ketone supplement Arm by measuring serum levels of BHB, free fatty acid, acylcarnitine, glucose, and insulin at each FDG PET/CT visit.
Approximately 15 mLs of blood will be drawn and used to measure B-Hydroxybutyrate (BHB), acylcarnitines, insulin, glucose and free fatty acid and other targeted metabolomics
|
3 years
|
comparing the transthoracic echocardiogram changes before and after the Ketone supplement drink to assess the effect of Ketone supplement
Time Frame: 3 years
|
comparing the transthoracic echocardiogram changes before and after the Ketone supplement drink to assess the effect of Ketone supplement.
Transthoracic Echocardiogram: Ultrasound will be used to create an image of the internal parts of the heart.
This test is being done to assess any changes in cardiac function with the ketone drink.
We will perform echocardiography before and approximately 30 minutes after the drink.
|
3 years
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
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)
January 5, 2020
Primary Completion (Anticipated)
January 5, 2022
Study Completion (Anticipated)
January 5, 2023
Study Registration Dates
First Submitted
January 6, 2020
First Submitted That Met QC Criteria
February 12, 2020
First Posted (Actual)
February 19, 2020
Study Record Updates
Last Update Posted (Actual)
July 16, 2020
Last Update Submitted That Met QC Criteria
July 15, 2020
Last Verified
July 1, 2020
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 834253
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
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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