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Study on the Safety and Immunogenicity of Hepatitis E Vaccination in Liver Transplant Recipients

Study on the Safety and Immunogenicity of Hepatitis E Vaccination in Liver Transplant Recipients

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500101910
Enrollment
Unknown
Registered
2025-05-06
Start date
2025-05-06
Completion date
Unknown
Last updated
2025-05-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Liver transplant recipients after liver transplantation

Interventions

Regular dose group:Routine 30ug dose of recombinant hepatitis E vaccine (Xiamen Wantai Canghai Bio-technology Co.

Sponsors

Beijing Youan Hospital, Capital Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Time after liver transplantation 6 months to 18 months; 2. No history of hepatitis E vaccination or infection, negative for anti-HEV antibodies (including anti-HEV IgM and IgG) and negative for HEV pathogens (HEV RNA and HEV antigen); 3. Normal or essentially normal liver and kidney function (indicators not elevated more than twice the normal value); 4. No rejection at the time of vaccination, no recent (within 1 month) infection; 5. In a state of mild immunosuppression, i.e. on a single immunosuppressant, or a small dose combination of two or more immunosuppressants, and off hormones for at least six months; 6. Fully understand the experimental research process and sign the informed consent form. 7. 18 years old <= age <= 70 years old, male or female;

Exclusion criteria

Exclusion criteria: 1. Time since liver transplantation 18 months; 2. Recurrence of combined primary disease (including recurrence of hepatitis B, recurrence of hepatocellular carcinoma, etc.); 3. Development of biliary complications: biliary strictures, bile leaks, bile sludge formation, ischaemic changes; 4. Vascular complications: stenosis, haemorrhage, thrombosis of the hepatic artery, portal vein or inferior vena cava. 5. Combined with significant abnormalities of liver function (elevated indexes more than two times the normal value or more); 6. Combined renal insufficiency requiring dialysis treatment; 7. Those with definite organic heart disease or arrhythmia; 8. Women who have a positive pregnancy test or who are breastfeeding, or who plan to become pregnant in the next 7 months; 9. Persons with a clear history of hypersensitivity to any component of the vaccine; 10. Contraindications to the trial vaccine insert: allergy to any component of the vaccine; history of allergy to other vaccines; thrombocytopenia or other coagulation disorders; history of allergy to kanamycin or other aminoglycosides; acute illnesses, severe chronic illnesses, acute exacerbations of chronic illnesses, and fever; uncontrolled epilepsy and other progressive neurological disorders; meets the conditions.One of the following; 11. Age 70 years;

Design outcomes

Primary

MeasureTime frame
Response rate of subjects after hepatitis E vaccination;

Secondary

MeasureTime frame
Hepatitis E Virus IgG Antibody Test;Dynamic changes in cytokine levels;Mass Cytometry (CyTOF)-Based Immune Cell Subset Profiling, Functional Characterization, and Signaling Pathway Analysis;

Countries

China

Contacts

Public ContactOuyang YaBo

Beijing Youan Hospital, Capital Medical University

yaboouyang@ccmu.edu.cn+86 10 8399 7425

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026