Blood type clues may reveal hidden clot risk
NCT ID NCT07402005
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether certain natural markers on red blood cells, called Lewis antigens, are more common in people who have had blood clots in their veins. Researchers will test 100 adults with a history of deep vein thrombosis and record their other clot risk factors. The goal is to better understand if these blood markers could help identify people at higher risk for future clots.
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
-
About 200 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
-
Jan 2026
An estimate. Start dates often move.
- Expected to finish
-
Jan 2027
An estimate. End dates often move.
- Lead sponsor
-
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
Pateints with personal history of VTE
- Ages
-
18 to 78 years
- Sex
-
Anyone
- Healthy volunteers
-
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: * Adult patients aged 18-78 years with a personal history of deep venous thrombosis and/or Pulmonary Embolism. Exclusion Criteria:1. Current pregnancy or postpartum period 2. Hepatic insufficiency 3. Alcoholic cirrhosis \-
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Deep vein thrombosis are added.
Genom att skicka in godkänner du våra Användarvillkor
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.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
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.
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can electronic alerts and patient teaching stop deadly clots after cancer surgery?
- Can a new Five-Category system predict which pulmonary embolism patients will crash?
- A quick ultrasound in the ER: could it replace blood tests for blood clots?
- A new exercise plan aims to get pulmonary embolism survivors back on their feet
- Spotting hidden blood clots in scarred lungs: a study hunts for clues
- Decades-Long study of 121,700 nurses aims to uncover hidden heart disease triggers