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A multi-center clinical trial of tolerance induction using autologous regulatory T cells in liver transplantation

A multi-center clinical trial of tolerance induction using autologous regulatory T cells in liver transplantation - Treg multicenter clinical trial

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000030612
Enrollment
40
Registered
2018-01-01
Start date
2018-01-01
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

End-stage liver failure patients eligible for liver transplantation

Interventions

The liver transplant recipient is given cyclophosphamide (40 mg/kg, iv) on postoperative days (POD) 5, and ex-vivo generated regulatory T cells on POD 13. Postoperative immunosuppression is with conve

Sponsors

Hokkaido University Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Recipient 1. A case considered to have eligibility for liver transplantation by the specialists (liver transplant surgeons, physicians, anesthesiologists, radiologists, psychiatrists and pathologists) at the associated institutions 2. A case who is approved for liver transplantation by the medical IRB at the associated institutions 3. A patient over 20 years old. Each institute determine the upper limit of age. 4. A patient who receives informed consent and is well-understood for this protocol and given a consent in writing voluntarily Donor 1. A case considered to have eligibility for liver transplantation donor by the specialists (liver transplant surgeons, physicians, anesthesiologists, radiologists, psychiatrists and pathologists) at the associated institutions 2. A case who is approved for liver transplantation donor by the medical IRB at the associated institutions 3. Platelet >= 100x103/micro L and Hb >= 12.0 g/dL 4. A donor who receives informed consent and is well-understood for this protocol and given a consent in writing voluntarily

Exclusion criteria

Exclusion criteria: Recipient 1. A person who has no recognition capacity 2. A person who is judged inadequate for the protocol due to the following past history or ongoing infections 1) Bacterial infection such as Treponema pallidum, Neisseria gonorrhea or Mycobacterium tuberculosis 2) Sepsis 3) Malignant diseases (except for hepatocellular carcinoma) 4) Severe metabolic diseases 5) Collagen disease or hematological disorders 6) Transmissible spongiform encephalopathy or dementia 7) A specific hereditary disease or associated familial history 8) Human immunodeficiency virus infection 9) Human T-cell leukemia virus type 1 infection 10) Human parvovirus B19 infection 11) Active infection such as Cytomegalovirus, Epstein-Barr virus or West Nile virus 3. A person 1) with systolic blood pressure under 90 mmHg or over 180 mmHg, 2) with diastolic blood pressure under 50 mmHg or over 100 mmHg 4. A person considered ineligible due to some medical reasons by principal investigator or co-researchers Donor 1. A donor who has no recognition capacity 2. A donor who is judged inadequate for the protocol due to the following past history or ongoing infections 1) Bacterial infection such as Treponema pallidum, Neisseria gonorrhea or Mycobacterium tuberculosis 2) Sepsis 3) Malignant diseases 4) Severe metabolic diseases 5) Collagen disease or hematological disorders 6) Liver diseases 7) Transmissible spongiform encephalopathy or dementia 8) A specific hereditary disease or associated familial history 9) HBV infection 10) HCV infection 11) Human immunodeficiency virus infection 9) Human T-cell leukemia virus type 1 infection 10) Human parvovirus B19 infection 11) Active infection such as Cytomegalovirus, Epstein-Barr virus or West Nile virus 3. A donor 1) with systolic blood pressure under 90 mmHg or over 180 mmHg, 2) with diastolic blood pressure under 50 mmHg or over 100 mmHg 4. A person considered ineligible due to some medical reasons by principal investigator or co-researchers

Design outcomes

Primary

MeasureTime frame
Immunosuppressive drug free rate at 30-month after liver transplantation

Secondary

MeasureTime frame
1.Amount of immunosuppressive drugs at 1, 2, 3, 4 and 5 years after liver transplantation 2.Drug free interval time after complete cessation of immunosuppressive drugs 3.Successful rate of immunosuppressive drug withdrawal at 30-month after liver transplantation by age 4.Safety of autologous regulatory T cell infusion 5.Safety of leukopheresis

Countries

Japan

Contacts

Public ContactAkinobu Taketomi

Hokkaido University Graduate School of Medicine Department of Gastroenterological Surgery I

taketomi@med.hokudai.ac.jp011-706-5927

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026