Positron Emission Tomography (PET) Imaging of Thrombosis

NCT ID: NCT03830320

Last Updated: 2023-12-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

165 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-04-01

Study Completion Date

2026-01-30

Brief Summary

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The purpose of the study is to evaluate a new radiotracer called 64Cu-FBP8 for PET-MR imaging of thrombosis. The tracer has the potential of detecting thrombosis anywhere in the body, for instance in the left atrial appendage of patients with atrial fibrillation, and thereby may provide a non-invasive alternative to the current standard-of-care methods.

Detailed Description

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The primary objectives of this study are:

1. To evaluate the safety of \[64Cu\]FBP8 and its whole body distribution, metabolism, pharmacokinetics, and radiation burden in healthy volunteers.
2. To establish the accuracy of \[64Cu\]FBP8 -PET to detect left atrial thrombosis in patients with atrial fibrillation.
3. To explore the feasibility of \[64Cu\]FBP8 -PET to detect thrombosis in patients with COVID-19.
4. To explore the feasibility of \[64Cu\]FBP8 -PET to detect thrombosis in patients with cancer.
5. To explore the feasibility of \[64Cu\]FBP8 -PET to detect thrombosis in patients with known or suspicion of thrombus outside of the left atrial appendage.

Conditions

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Atrial Fibrillation COVID-19 Cancer Thrombosis

Keywords

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PET-MRI

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Healthy Volunteers

Twenty (20) healthy adult subjects will be injected with \[64Cu\]FBP8 to establish the safety, whole body distribution, metabolism, pharmacokinetics, and radiation burden of the probe. All subjects will be imaged using PET/MR. Healthy subjects will undergo blood collection before, during, and after the scan. Healthy subjects will also undergo electrocardiogram before and after the scan. An interim review of the data will be conducted after the first six subjects receive the study agent and complete all safety assessments.

Group Type ACTIVE_COMPARATOR

[64Cu]FBP8

Intervention Type DRUG

Injection of Copper-64 radiopeptide to detect thrombosis

PET/MR

Intervention Type DEVICE

Whole body imaging using Siemens mMR PET/MR scanner

Blood Collection

Intervention Type PROCEDURE

A total of 9 cc of blood sampled before, during, and after imaging for clinical chemistry

Electrocardiogram

Intervention Type PROCEDURE

A standard 12-lead ECG will be obtained pre-and-post injection with radiotracer

Atrial Fibrillation Patients

Thirty-five (35) patients with LAA thrombus documented by TEE will be injected with \[64Cu\]FBP8 and imaged for LAA thrombus with MR-PET. The TEE studies in these patients will be part of their routine clinical care. Thirty-five (35) patients with atrial fibrillation and negative TEE will be injected with \[64Cu\]FBP8 and imaged for LAA thrombus. Forty (40) patients with atrial fibrillation who are scheduled for TEE in the upcoming 14 days will be injected with \[64Cu\]FBP8 and imaged for LAA thrombus.

Group Type EXPERIMENTAL

[64Cu]FBP8

Intervention Type DRUG

Injection of Copper-64 radiopeptide to detect thrombosis

PET/MR

Intervention Type DEVICE

Whole body imaging using Siemens mMR PET/MR scanner

COVID-19 Patients

Thirty (30) COVID-19 patients will be injected with \[64Cu\]FBP8 and imaged for thrombi in the body.

Group Type EXPERIMENTAL

[64Cu]FBP8

Intervention Type DRUG

Injection of Copper-64 radiopeptide to detect thrombosis

PET/MR

Intervention Type DEVICE

Whole body imaging using Siemens mMR PET/MR scanner

Cancer Patients

Thirty (30) cancer patients will be injected with \[64Cu\]FBP8 and imaged for thrombi in the body.

Group Type EXPERIMENTAL

[64Cu]FBP8

Intervention Type DRUG

Injection of Copper-64 radiopeptide to detect thrombosis

PET/MR

Intervention Type DEVICE

Whole body imaging using Siemens mMR PET/MR scanner

Other Thrombotic Condition Patients

Fifty (50) patients with other thrombotic conditions will be injected with \[64Cu\]FBP8 and imaged for thrombi in the body.

Group Type EXPERIMENTAL

[64Cu]FBP8

Intervention Type DRUG

Injection of Copper-64 radiopeptide to detect thrombosis

PET/MR

Intervention Type DEVICE

Whole body imaging using Siemens mMR PET/MR scanner

Interventions

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[64Cu]FBP8

Injection of Copper-64 radiopeptide to detect thrombosis

Intervention Type DRUG

PET/MR

Whole body imaging using Siemens mMR PET/MR scanner

Intervention Type DEVICE

Blood Collection

A total of 9 cc of blood sampled before, during, and after imaging for clinical chemistry

Intervention Type PROCEDURE

Electrocardiogram

A standard 12-lead ECG will be obtained pre-and-post injection with radiotracer

Intervention Type PROCEDURE

Other Intervention Names

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64Cu-FBP8 PET-MR ECG

Eligibility Criteria

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Exclusion Criteria

* Subjects less than 18 years of age;
* Electrical implants such as cardiac pacemaker or perfusion pump;
* Pregnant or breastfeeding (a negative STAT quantitative serum hCG pregnancy test is required for females having child-bearing potential before the subject can participate);
* Claustrophobic reactions;
* Subjects will be excluded if research-related radiation exposure exceeds current Radiology Department guidelines (i.e. 50 mSv in the prior 12 months);
* Unable to lie comfortably on a bed inside the PET scanner;
* Subjects under direct or indirect (i.e. same department as PIs) supervision of the principal investigator;
* Body weight over the weight limit for the moving table (\> 300 lbs for the MRI table and \>441 lbs for the CT table);
* Metallic or electric implants contraindicated for MR-PET scanning when applicable;
* Does not have the ability to give written informed consent.
* Determined by the investigator(s) to be clinically unsuitable for the study (e.g. based on screening visit and/or during study procedures);


* Stroke within the last 3 months;
* Myocardial infarction within the last 3 months;
* Cardiac or major surgery within the last 3 months;
* History of chest pain within the last 6 weeks unless followed by a subsequent stress test or coronary angiography;
* History of syncope within the last 6 weeks;
* Heart rate persistently \>120 bpm or persistently \< 50 bpm;
* Presence of daytime pauses \> 3s
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Heart, Lung, and Blood Institute (NHLBI)

NIH

Sponsor Role collaborator

Massachusetts General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Peter Caravan

Professor of Radiology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Ciprian Catana, PhD

Role: PRINCIPAL_INVESTIGATOR

Massachusetts General Hospital

Locations

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Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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David E Sosnovik, MD

Role: CONTACT

Phone: 617-724-3407

Email: [email protected]

Anne L Philip, MPH

Role: CONTACT

Phone: 617-726-0431

Email: [email protected]

Facility Contacts

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David E Sosnovik, MD

Role: primary

References

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Izquierdo-Garcia D, Desogere P, Philip AL, Mekkaoui C, Weiner RB, Catalano OA, Iris Chen YC, DeFaria Yeh D, Mansour M, Catana C, Caravan P, Sosnovik DE. Detection and Characterization of Thrombosis in Humans Using Fibrin-Targeted Positron Emission Tomography and Magnetic Resonance. JACC Cardiovasc Imaging. 2022 Mar;15(3):504-515. doi: 10.1016/j.jcmg.2021.08.009. Epub 2021 Oct 13.

Reference Type DERIVED
PMID: 34656469 (View on PubMed)

Other Identifiers

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R01HL109448

Identifier Type: NIH

Identifier Source: secondary_id

View Link

2015P002385

Identifier Type: -

Identifier Source: org_study_id