Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Apixaban for portal vein clots that appear more than a year after laparoscopic splenectomy

Official title: Efficacy of Apixaban in Treating Portal Vein Thrombosis Occurring More Than One Year After Laparoscopic Splenectomy

Run by Northern Jiangsu People's Hospital · NCT07461545 · Data updated 2026-11-12

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.

More Cirrhosis trials

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment20 (estimated)
SponsorNorthern Jiangsu People's Hospital
Academic / other
Locations1 site (Yangzhou, Jiangsu)
StatusRecruiting
StartedApril 1, 2026
Main results expectedSeptember 30, 2027
Study endsSeptember 30, 2027
Registry record updatedMarch 31, 2026
Trial IDNCT07461545 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

People with cirrhosis who underwent laparoscopic splenectomy at the enrolling center, had no postoperative portal vein thrombosis in months 6–12, and then developed portal vein thrombosis more than 12 months after surgery are ideal candidates.

Probably not a fit

Patients with high bleeding risk, advanced liver failure, active hepatocellular carcinoma, or those who developed portal vein thrombosis within the first year after surgery may not 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

Adults with cirrhosis who had laparoscopic splenectomy at the center and who develop portal vein thrombosis more than 12 months after surgery will receive oral apixaban 2.5 mg twice daily. Treatment response will be monitored every three months using Doppler ultrasound or contrast-enhanced CT scans, and patients who show clot resolution or improvement will continue apixaban. Eligible participants previously had perioperative prophylaxis and no imaging evidence of thrombosis during months 6–12 postoperatively. Safety monitoring for bleeding and liver-related events will be performed during follow-up.

Why it matters

Potential benefit: If successful, apixaban could offer an effective oral treatment to clear or control portal vein thrombosis that appears late after splenectomy, potentially reducing clot-related complications.

How similar studies have gone: Small studies and case series of direct oral anticoagulants, including apixaban, have shown promise for portal vein thrombosis in cirrhosis, but larger controlled data are still 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. 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

Where it's running

  • Clinical Medical College
    Yangzhou, Jiangsu, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.