- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05501301
Immune Tolerance After Pediatric Liver Transplantation
Immune Tolerance After Pediatric Liver transplantation-a Cohort Study
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Background: Immune tolerance after liver transplantation is defined as the status that recipients no longer taking any immunosuppressive agents with normal liver function and intrahepatic pathology. For pediatric liver transplantation recipients, immune tolerance is easier to reach than adult liver transplantation recipients. It is reported that spontaneous immune tolerance ratio in pediatric liver transplantation recipients is between 15%-60%, varying among different centers. Some recipients could develop into spontaneous immune tolerance due to refractory infections or side effects of IS. Some recipients could also reach immune tolerance by gradually weaning off the IS if liver function maintained normal and stable in the long-term follow-up. What's more, immune tolerance could reduce the long-term side effects of IS in pediatric recipients. However, how the immune status was modulated, or which factors contribute to the development of immune tolerance is unknown. Besides, the long-term safety of immune tolerance also needs more research. This study is designed to figure out the ratio and safety of immune tolerance in pediatric liver transplantation recipients.
Assessment before enrollment: In this study, enrolled population should have received living donor liver transplantation (LDLT) in Ren Ji Hospital affiliated to Shanghai Jiao Tong University School of Medicine for more than one year and liver function maintains stable and normal for more than 3 months. No severe complication including vessel complications, biliary complications or renal dysfunction should occur before enrollment. Liver biopsy should indicate no signs of acute rejection or chronic rejection, and no obvious fibrosis (Ishak<2).
Protocol after enrollment: After enrollment, the recipients will be evaluated for virus infection and side effects of IS. For patients with refractory EBV or CMV infections, or obvious side effects of IS, IS minimization should be applied. The dosage of IS will be weaned off as the 3/4 dosage of last dosage every 4 weeks. During the process of weaning off, liver function will be monitored every two weeks and liver biopsy should be conducted every six months. If liver dysfunction or acute rejection is detected during follow-up, steroid bolus and increased IS will be applied. For patients who have stop taking any IS, liver biopsy will be conducted to exclude potential liver injury in liver biopsy. For patients who have stop taking IS for more than one year with normal liver function and liver pathology, immune tolerance is considered as reached. At the endpoint of study, the ratio of immune tolerance, ratio of acute rejection and safety of immune tolerance will be assessed.
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Contact
- Name: Yuan Liu, MD
- Phone Number: 13651733680
- Email: liuyuanbird@163.com
Study Locations
-
-
Shanghai
-
Shanghai, Shanghai, China, 200127
- Recruiting
- Ren Ji Hospital affiliated to Shanghai Jiao Tong University School of Medicine
-
Contact:
- YuN Liu, MD
- Phone Number: 86-13651733680
- Email: liuyuanbird@163.com
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Age at liver transplantation: 4 months to 18 years;
- Original disease before liver transplantation: End-stage liver diseases including cholestatic diseases or metabolic diseases;
- Type of liver transplantation: living donor liver transplantation, with donors of recipient's parents
- Follow-up time after liver transplantation: more than one year
- Liver function: liver function maintains normal and stable 3 months before enrollment
- IS strategy: monotherapy of IS (FK or cyclosporine) or no longer taking any IS
- Liver biopsy: No signs of acute rejection or chronic rejection, and no obvious fibrosis (Ishak<2)
- Written consents are required
Exclusion Criteria:
- Original disease before liver transplantation: Tumor, hepatitis virus infection, autoimmune hepatitis, liver failure, secondary liver transplantation
- Type of liver transplantation: ABO incompatible liver transplantation, donors are not recipient's parents or multiple organ transplantation
- Hepatitis virus infection during follow-up
- Severe compilations, including bleeding complication, biliary complication, vessel complication or renal dysfunction -
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Immune tolerance cohort
Patients that are enrolled into this cohort will receive IS minimization if virus infection or side effects of IS was found.
The strategy of IS minimization will follow the "Clinical guidelines for pediatric liver transplantation in China(2015)".
Blood test and liver biopsy will be conducted to monitor liver function and intrahepatic pathological conditions.
If IS is ceased for more than one year without liver dysfunction or signs of acute rejection in liver biopsy, immune tolerance was considered reached.
|
IS weaning off will be conducted in recipients with chronic virus infection or side effects of IS
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Ratio of immune tolerance
Time Frame: One year after withdraw of IS
|
The ratio of spontaneous immune tolerance in pediatric liver transplantation recipients, which is free of IS for more than one year with normal liver function
|
One year after withdraw of IS
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Ratio of acute rejection
Time Frame: 6 months, 1 year, 2 years and 3 years after enrolled into the study
|
The ratio of acute rejection that happens in recipients during the process of IS minimization
|
6 months, 1 year, 2 years and 3 years after enrolled into the study
|
Collaborators and Investigators
Sponsor
Investigators
- Study Director: Qiang Xia, MD, Ren Ji Hospital affiliated to Shanghai Jiao Tong University School of Medicine
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- IIT-2022-0004
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Liver Transplant; Complications
-
PilloxaTerminatedLiver Transplant; Complications | Kidney Transplant; ComplicationsSweden
-
Zhejiang UniversityNot yet recruitingLiver Transplant; Complications
-
Institute of Liver and Biliary Sciences, IndiaRecruitingLiver Transplant; ComplicationsIndia
-
Universidade Federal do Rio de JaneiroUniversity of California, San FranciscoUnknownLiver Transplant; ComplicationsBrazil
-
Société Française d'Anesthésie et de RéanimationLaboratoire français de Fractionnement et de BiotechnologiesNot yet recruitingLiver Transplant; ComplicationsFrance
-
Fondazione Policlinico Universitario Agostino Gemelli...RecruitingLiver Transplant; ComplicationsItaly
-
Hospital Universitari Vall d'Hebron Research InstituteCompletedLiver Transplant; ComplicationsSpain
-
Seoul St. Mary's HospitalEnrolling by invitationLiver Transplant; ComplicationsKorea, Republic of
-
Boston Scientific CorporationCompletedLiver Transplant; ComplicationsSpain, United States, Netherlands, Brazil
-
Seoul National University HospitalCompletedLiver Transplant; ComplicationsKorea, Republic of
Clinical Trials on IS weaning off
-
Universitair Ziekenhuis BrusselCompletedFailed Back Surgery SyndromeBelgium
-
Universitair Ziekenhuis Brusselthe eNose companyCompletedFailed Back Surgery SyndromeBelgium
-
Moens MaartenCompletedFailed Back Surgery SyndromeBelgium
-
Moens MaartenCompleted
-
Nomir Medical TechnologiesUnknown
-
University of Missouri-ColumbiaTerminated
-
Felix JF HerthDLR German Aerospace Center; University Hospital Heidelberg; Federal Joint Committee and other collaboratorsRecruitingWeaning | Invasive VentilationGermany
-
BDH-Klinik Hessisch OldendorfCompletedRespiratory Insufficiency | Neurologic DisorderGermany
-
Federal University of UberlandiaCompletedWeaning Failure | Complication of Respirator [Ventilator]Brazil
-
University Hospital TuebingenNot yet recruitingAcute Respiratory Distress Syndrome