Radioactive tracer lights up blood clots on scans
NCT ID NCT07813559
First seen Sep 10, 2026 · Last updated Sep 11, 2026 · Updated 1 time
Summary
Researchers are testing a radioactive tracer called 18F/68Ga-GP1 that binds to a protein found on blood clots. Adults with suspected, newly diagnosed, or previously treated thrombi receive one intravenous injection and then undergo PET/CT or MRI imaging. The study measures how much tracer collects in each clot and checks how well the scans detect clots compared with standard methods.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- a radioactive tracer called 18F/68Ga-GP1 that binds to a clot protein and lights up on PET scans
- What this could lead to
- If the tracer works, doctors could one day use a PET/CT scan to find blood clots more precisely and guide treatment decisions.
- What could go wrong
- This is a diagnostic imaging study, not a treatment, and the tracer is still being tested. The scan may miss clots, give unclear pictures, or produce false alarms, and the radiation dose carries a small risk.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 500 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2026
- Expected to finish
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Sep 2031
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
(i) adult patients (aged 18 years or order); (ii) patients with suspected or new diagnosed or previously treated thrombi (supporting evidence may include MRI, CT, tumor markers and pathology report); (iii) patients who had scheduled GPIIb/IIIa PET/CT scan; (iv) patients who were able to provide informed consent (signed by participant, parent or legal representative) and assent according to the guidelines of the Clinical Research Ethics Committee.
- Ages
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18 to 90 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * (i) adult patients (aged 18 years or order); (ii) patients with suspected or new diagnosed or previously treated thrombi (supporting evidence may include MRI, CT, tumor markers and pathology report); (iii) patients who had scheduled GPIIb/IIIa PET/CT scan; (iv) patients who were able to provide informed consent (signed by participant, parent or legal representative) and assent according to the guidelines of the Clinical Research Ethics Committee. Exclusion Criteria: * (i) patients with non-thrombi lesions; (ii) patients with pregnancy; (iii) the inability or unwillingness of the research participant, parent or legal representative to provide written informed consent.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
3 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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The Affiliated Hospital of Qingdao University
RECRUITINGQingdao, Shandong, 266000, China
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The First Affiliated Hospital of University of Science and Technology of China
RECRUITINGHefei, Anhui, 230000, China
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Tianjin Medical University General Hospital
RECRUITINGTianjin, Tianjin Municipality, 300052, China
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- Heart CT scans may spot clots missed by standard tests