- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04022915
PET Fibrin Imaging of DVT and PE
December 5, 2023 updated by: Peter Caravan
This study aims to investigate a novel positron emission tomography(PET)-probe for imaging of fresh intravascular blood clots in pulmonary embolism (PE) and deep venous thrombosis (DVT).
Study Overview
Status
Recruiting
Intervention / Treatment
Detailed Description
Venous thromboembolism (VTE) is one of the most common causes of death in the United States, resulting in more than 100,000 deaths annually.
Current diagnostic techniques rely on indirect measures of clot for diagnosis and therefore suffer from the problems of both under and overdiagnosis and cannot always be performed on patients with renal failure and lung disease.
In this study, we will use the novel fibrin-specific probe 64CU-FBP8 (Copper-64 labeled fibrin binding probe 8) for PET imaging of fresh blood clots in PE and DVT.
Our long-term goal is to establish a novel thrombus body scan (TBS) using 64CU-FBP8 for PET imaging to overcome the limitations of indirect venous thromboembolism diagnosis, and, with one single test, provide a total-body assessment of fresh intravascular clot.
Study Type
Interventional
Enrollment (Estimated)
80
Phase
- 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
- Name: Tilo Winkler, PhD
- Phone Number: 617-724-4083
- Email: twinkler@mgh.harvard.edu
Study Contact Backup
- Name: Mamary T Kone, MD, MPH
- Phone Number: 617-726-1082
- Email: mkone@mgh.harvard.edu
Study Locations
-
-
Massachusetts
-
Boston, Massachusetts, United States, 02114
- Recruiting
- Massachusetts General Hospital
-
Contact:
- Tilo Winkler, PhD
- Phone Number: 617-724-4083
- Email: twinkler@mgh.harvard.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
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- 18 years of age or older with a clinically significant pulmonary embolus (PE) confirmed by a filling defect in CT angiography (CTA), and
- Subjects must receive the radiotracer injection within 72 hours of their diagnosis.
Exclusion Criteria:
- Subjects < 18 years of age
- Time of expected radiotracer injection > 72 hours from the time of a positive venous duplex ultrasound or CT- angiogram
- Women subjects of childbearing potential who are pregnant, seeking to become pregnant, or have a positive serum pregnancy (beta-HCG) test
- Unable to lie flat for 45 minutes as assessed by physical examination and medical history (e.g. back pain, arthritis, dyspnea),
- Weight that exceeds the PET camera table limit (300 kg)
- The subject will not be enrolled in the study if the radiation exposure for research studies during the prior 12 months, combined with the exposure from this study would exceed 50 mSv (millisievert).
- Due to the radiation exposure from imaging studies, all women of childbearing potential will be required to have a negative serum pregnancy test performed prior to any imaging procedures on the same day (if not already done that day). Patients with a positive serum pregnancy test will be excluded. Breast feeding women will also be excluded.
- A pre-existing condition or use of a medication including vasopressors and tPA (tissue Plasminogen Activator) that in the opinion of the investigator may place the subject at a substantially increased risk
- Hemodynamic instability, including requiring escalating doses of vasopressor medication.
- No groups designated as "special vulnerable populations" will be studied.
- No exclusions will be made based on race, sex, or ethnic origin.
- 64Cu-FBP8 (Copper-64 labeled fibrin binding probe 8) is cleared by the kidneys, patients with eGFR (estimated Glomerular Filtration Rate ) < 30 will be excluded.
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: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Acute pulmonary embolism
Subjects will receive 64Cu-FBP8 and undergo PET-CT imaging.
|
Up to 10 mCi (millicurie) 64Cu-FBP8 will be administered to each subject.
All subjects will undergo PET-CT imaging after administration of 64Cu-FBP8.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Location of the thrombus within the lungs
Time Frame: 4 hours
|
To determine the location of the thrombus regions of interest (ROIs) within the lungs using PET-CT imaging in comparison to the ROI of filling defects on CT-angiogram.
|
4 hours
|
Location of clot burden measurements within the thigh
Time Frame: 4 hours
|
To determine the location of the thrombus ROI within the thigh using PET-CT imaging in comparison to the clot on venous duplex ultrasound.
|
4 hours
|
Assessment of 64Cu-FBP8 fibrin activity in the pelvic and upper extremity
Time Frame: 4 hours
|
The prevalence of high 64Cu-FBP8 fibrin activity in the pelvic ROI and upper extremity ROI's will be reported.
|
4 hours
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Correlation between normalized 64Cu-FBP8 fibrin activity and plasma D-dimer
Time Frame: 4 hours
|
Correlation of the total fibrin activity in the imaged fields, excluding the liver, gallbladder, kidneys and urinary bladder normalized by injected dose with the plasma D-dimer.
|
4 hours
|
Overall clot burden within the lungs
Time Frame: 4 hours
|
Overall clot burden calculated as sum of 64Cu-FBP8 activity within a thrombus ROI(s) within the lungs.
|
4 hours
|
Overall clot burden within the thigh
Time Frame: 4 hours
|
Overall clot burden calculated as sum of 64Cu-FBP8 activity within a thrombus ROI(s) within the thigh.
|
4 hours
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Tilo Winkler, PhD, 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 (Actual)
May 13, 2019
Primary Completion (Estimated)
June 1, 2024
Study Completion (Estimated)
December 31, 2024
Study Registration Dates
First Submitted
July 10, 2019
First Submitted That Met QC Criteria
July 15, 2019
First Posted (Actual)
July 17, 2019
Study Record Updates
Last Update Posted (Actual)
December 6, 2023
Last Update Submitted That Met QC Criteria
December 5, 2023
Last Verified
December 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2018P000523
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
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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