3000 patients join study to unravel brain clot mystery
NCT ID NCT03919305
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is following 3000 people in China who have cerebral venous thrombosis, a rare type of blood clot in the brain. Researchers will collect blood and spinal fluid samples to learn more about the disease and find markers that could help with diagnosis. The goal is to better understand the condition and how it is currently treated.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could lead to better understanding and earlier diagnosis of cerebral venous thrombosis.
- What could go wrong
- This is an observational study, not a treatment trial. It may not directly improve outcomes for participants.
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 3,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2019
- Expected to finish
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Dec 2026
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
Patients with cerebral venous sinus thrombosis, deep cerebral vein thrombosis and cortical vein thrombosis.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: • Cerebral venous sinus thrombosis, deep cerebral vein thrombosis and cortical vein thrombosis diagnosed by digital subtraction angiography (DSA), magnetic resonance venography (MRV), computed tomography venography (CTV) or high-resolution magnetic resonance imaging (HR-MRI). Exclusion Criteria: • None of the patient, trustee or immediate family members signed the 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
1 site. 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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Xuanwu Hospital, Capital Medical University
RECRUITINGBeijing, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can an Anti-Inflammatory drug improve recovery from a rare stroke type?
- Can a Clot-Removing procedure beat standard care for brain vein blockage?
- French biobank aims to unlock secrets of rare brain vessel diseases
- Blood tests may help predict recovery in rare brain clot condition
- New hope for severe brain clots: clot removal plus meds vs. meds alone
- Brain vein study tests new MRI to see lymph nodes