Can a blood thinner clear stubborn clots after spleen surgery?
NCT ID NCT07461545
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether the blood thinner apixaban can safely dissolve blood clots in the portal vein (the main vein to the liver) that appear more than a year after spleen removal surgery. It involves 20 adults with cirrhosis who had their spleen removed. The goal is to see if apixaban helps restore normal blood flow better than aspirin.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 20 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Apr 2026
An estimate. Start dates often move.
- Expected to finish
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Sep 2027
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.
- Ages
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18 years and older
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. A clinical, radiological, or histologic diagnosis of cirrhosis of any etiology. 2. Splenomegaly with secondary hypersplenism. 3. No evidence of portal vein thrombosis by ultrasound evaluation and angio-CT prior to surgery. 4. Underwent laparoscopic splenectomy at our center. 5. Orally received 2.5 mg of apixaban (CTTQ, Nanjing, China) twice daily or a 100 mg aspirin tablet (Bayer, Leverkusen, Germany) once daily for 6 months from POD 3. 6. subcutaneous injections of low molecular weight heparin sodium (CSBio, Hebei, China) were administered for 5 days from POD 3 7. Oral dipyridamole (Henan Furen, Henan, China) at a dosage of 25 mg, administered three times daily for 3 months from POD 3. 8. Had no imaging evidence (Doppler ultrasound or CT) of portal vein thrombosis during postoperative months 6 to 12. 9. Developed portal vein thrombosis after 12 months post-surgery. 10. Provided informed consent to participate in the study. Exclusion Criteria: 1. Hepatocellular carcinoma or any other malignancy. 2. Hypercoagulable state other than the liver disease related. 3. DRUGS- oral contraceptives, anticoagulation or anti-platelet drugs. 4. Portal hypertension bleeding . 5. Child - Pugh C 6. Recent peptic ulcer disease 7. History of Hemorrhagic stroke 8. Pregnancy. 9. Uncontrolled Hypertension 10. Human immunodeficiency virus (HIV) infection
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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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Clinical Medical College
RECRUITINGYangzhou, Jiangsu, 225001, China
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