Apixaban for portal vein thrombosis occurring more than one year after laparoscopic splenectomy and azygoportal disconnection
Official title: Efficacy of Apixaban in Treating Portal Vein Thrombosis Occurring More Than One Year After Laparoscopic Splenectomy and Azygoportal Disconnection
Run by Northern Jiangsu People's Hospital · NCT07461532 · Data updated 2026-11-12
This trial will try whether taking apixaban 2.5 mg twice daily can treat portal vein clots that appear more than a year after laparoscopic splenectomy and azygoportal disconnection in people with cirrhosis.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 20 (estimated) |
| Sponsor | Northern Jiangsu People's Hospital Academic / other |
| Locations | 1 site (Yangzhou, Jiangsu) |
| Status | Recruiting |
| Started | April 1, 2026 |
| Main results expected | September 30, 2027 |
| Study ends | September 30, 2027 |
| Registry record updated | March 31, 2026 |
| Trial ID | NCT07461532 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with cirrhosis who underwent laparoscopic splenectomy and azygoportal disconnection at the enrolling center, had no portal vein thrombosis during the first postoperative year, and then developed thrombosis after 12 months.
✕Probably not a fit
Patients who develop portal vein thrombosis within the first postoperative year, those with contraindications to anticoagulation or active bleeding, or patients treated elsewhere without required baseline imaging are unlikely to be eligible or to benefit from this protocol.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This interventional protocol gives oral apixaban 2.5 mg twice daily to patients who develop portal vein thrombosis more than 12 months after laparoscopic splenectomy and azygoportal disconnection. Efficacy and clot status are monitored every three months using Doppler ultrasound or contrast-enhanced CT. Patients who show improvement on imaging continue apixaban, while safety monitoring focuses on bleeding and liver-related adverse events. Eligible participants are those operated on at the enrolling center who had no thrombosis in the first postoperative year and consent to serial imaging follow-up.
Why it matters
Potential benefit: If effective, apixaban could restore portal vein blood flow or prevent clot progression with a convenient oral regimen, potentially reducing complications from portal vein thrombosis.
How similar studies have gone: Small observational studies and case series of direct oral anticoagulants, including apixaban, have reported promising recanalization rates for portal vein thrombosis in cirrhosis, but randomized controlled data remain limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. A clinical, radiological, or histologic diagnosis of cirrhosis of any etiology. 2. Portal hypertension bleeding . 3. Splenomegaly with secondary hypersplenism. 4. No evidence of portal vein thrombosis by ultrasound evaluation and angio-CT prior to surgery. 5. Underwent laparoscopic splenectomy at our center. 6. 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. 7. subcutaneous injections of low molecular weight heparin sodium (CSBio, Hebei, China) were administered for 5 days from POD 3 8. Oral dipyridamole (Henan Furen, Henan, China) at a dosage of 25 mg, administered three times daily for 3 months from POD 3. 9. Had no imaging evidence (Doppler ultrasound or CT) of portal vein thrombosis during postoperative months 6 to 12. 10. Developed portal vein thrombosis after 12 months post-surgery. 11. 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. Child - Pugh C 5. Recent peptic ulcer disease 6. History of Hemorrhagic stroke 7. Pregnancy. 8. Uncontrolled Hypertension 9. Human immunodeficiency virus (HIV) infection
Where it's running
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Clinical Medical College
Yangzhou, Jiangsu, China Recruiting
Study contacts
- Study coordinator: Guo-Qing Jiang, MD
- Email: jgqing2003@hotmail.com
- Phone: +8651487373272
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Apixaban for portal vein clots that appear more than a year after laparoscopic splenectomy
This trial tests whether taking apixaban twice daily can treat portal vein blood clots that develop more than a year after laparoscopic splenectomy in people with cirrhosis.
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Apixaban plus carvedilol to prevent portal-hypertension complications in cirrhosis
This will test whether adding apixaban to carvedilol can help prevent variceal bleeding, portal vein thrombosis, and other portal-hypertension complications in adults with Child-Pugh B cirrhosis.
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This project looks at past records and follow-up to see which factors are linked with reopening (recanalization) of blocked portal veins in people who have cirrhosis and endoscopy-confirmed gastroesophageal varices.
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Vagus nerve–guided laparoscopic spleen removal with azygoportal disconnection
This procedure tests whether a vagus nerve–guided laparoscopic spleen removal plus azygoportal disconnection helps people with cirrhosis, portal hypertension, and hypersplenism who have had gastroesophageal variceal bleeding.
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Education to prevent infections after spleen removal
See if a targeted educational program for adults who had their spleen removed improves vaccination uptake, awareness of infection risk, and continuity of care.
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Comparing blood thinners for people with cirrhosis and portal vein clots
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.