ABMSC Infusion Through Hepatic Artery in Portal Hypertension Surgery for the Treatment of Liver Cirrhosis

Phase 2

• Conditions: Liver Cirrhosis; Portal Hypertension; Hepatic Decompensation; Surgery
• Interventions: Procedure: Autologous bone marrow stem cells infusion （ABMSCi） plus abdominal portal hypertension surgery; Procedure: open abdominal portal hypertension surgery

• Registration Number: NCT01560845
• Lead Sponsor: Wenzhou Medical University

Brief Summary

In recent years, the safety and efficacy of autologous bone marrow stem cells infusion (ABMSCi) therapy were confirmed. The investigators attempted to infuse autologous bone marrow stem cells (ABMSC) through inserting a catheter into right gastric artery as far as proper hepatic artery after finishing open abdominal portal hypertension surgery. The present study was designed to treat bleeding from esophageal varices and hypersplenism and hopefully to improve the liver function as well.

Detailed Description

1. ABMSC mobilization and harvest

* For harvesting more ABMSC, ABMSC mobilization was induced by rhG-CSF (Gran○R), administered subcutaneously at a dose of 300μg daily for three consecutive days before open abdominal portal hypertension surgery.

* Bone marrow (160-200ml) of the patients was harvested from both posterior superior iliac according to standard procedures under local anaesthesia and was collected in a plastic bag containing heparin.

2. Open abdominal portal hypertension surgery

- Immediately after the harvest of ABMSC, the modified Sugiura procedure was performed for the patients who were assigned to the study group. The same surgical procedure was also performed for the control group (without harvest of ABMSC and ABMSC infusion).

3. ABMSC separation and infusion

* While performing the portal hypertension surgery, ABMSC was separated and purified in a class 10,000 clean laboratory. After fat and bony particles were removed by filtration, collected cells were moved to a cell-processing device. We used the reagent kit (\[Patent Number\] ZL 2006 1 0106875.5; \[Number of Criteria Applicable\] YZB/NING YIN 0008-2008; \[Researcher and Developer\] Wealthlin Science \& Technology Inc., Canada; \[Producer\] Ningxia Zhonglianda Biotech Co., Ltd.). The reagents adopt the method of negative cells collection. Take the cells which intended to remove as target cells, and carry out the removal step-by-step. On the basis of this method, red blood cells, blood platelets, blood plasma will be completely removed with part of white cells and lymphocytes being remarkably removed as well while all the stem cells / progenitor cells are being well retained.

* The nucleated cell (white blood cell) count of final ABMSC was measured by an automated complete blood count instrument and flow cytometry analysis. The number of mononuclear cells was counted manually under a microscope by Wright-Giemsa stain method. CD34 positive cells were determined by flow cytometry analysis.

* The time of ABMSC separation and purification was 2.5-3 hours which had to be completed before the conclusion of portal hypertension surgery (3-3.5 hours). ABMSC was added to 10 ml saline and well mixed by shaking the vial gently. Before incision closure, the right gastric artery or right gastroepiploic artery was selected and a catheter was inserted. The catheter was pushed to reach the proper hepatic artery. The diameter of the catheter is 1.4mm, it is thin enough to easily been inserted to right gastric artery or right gastroepiploic artery (central venous catheterization, REF product NO.ES-04218, Arrow International, Inc.). The mixture of saline and AMBC was infused into hepatic artery at uniform speed for about two minutes. The catheter was removed after the ABMSCi. The puncture point of the right gastric artery was repaired using blood vessel suture or transfixed.

4. Statistical analysis - Categorical data are presented as absolute values and percentages, whereas continuous data are summarized as mean and Standard Deviation. Statistical analysis was performed using t-test for paired or unpaired samples. Time courses of measurements of liver function parameters were analyzed by repeated-measures ANOVA. The analyses were performed using the SPSS 15.0 statistical package (SPSS Inc., Chicago, IL, USA). All statistical analyses were based on two-tailed hypothesis tests with a significance level of p\< 0.05.

Study Timeline

• Study Start: 2010-06
• Status Verified: 2012-03
• Study First Submitted: 2012-03-18
• Study First Submitted QC: 2012-03-21
• Last Update Submitted: 2012-03-21
• Study First Posted: 2012-03-22
• Last Update Posted: 2012-03-22
• Primary Completion: 2013-06
• Study Completion: 2014-06

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

1. Advanced liver cirrhosis after hepatitis B resulted in bleeding from esophageal varices and hypersplenism, and needed open abdominal portal hypertension surgery;
2. Endoscopy evidence of showing severe gastric and esophageal varices;
3. Severe hypersplenism （white blood cells (WBC) <3×109/L and platelet (PLT) <100×109/L）;
4. Active bone marrow hyperplasia showed by bone marrow biopsy before surgery;
5. Age between 18 and 60 years;
6. Plasma albumin <35g/L, or mild ascites;

Exclusion Criteria

1. Enlisted for liver transplantation
2. Diagnosis of hepatocellular carcinoma or other cancers
3. Other severe medical disease, and acute infection.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
ABMSCi plus surgery group	Autologous bone marrow stem cells infusion （ABMSCi） plus abdominal portal hypertension surgery	Autologous bone marrow stem cells infusion through hepatic artery in open abdominal portal hypertension surgery
portal hypertension surgery group	open abdominal portal hypertension surgery	only portal hypertension surgery for this group patients

Primary Outcome Measures

Name	Time	Method
Child-pugh score	1 month after treament

Secondary Outcome Measures

Name	Time	Method
Mortality	1week, 1 month, 3 month, 6 month, 1 year and 2 year
Incidence of complications	within the first week after treatment	postoperative pyrexia, intraperitoneal hemorrhage, intraperitoneal infection, malignant tumors of liver and other systems
blood test (hypersplenism)	whinin 7 days before treatment, 1 week,1,3, 6 and 12 months after treatment	PLT and WBC
liver volume calculated by CT	whinin 7 days before treatment, 1 month and a year after treatment	estimation of liver volume using CT
Indocyanine green (ICG) retention (clearance)	whinin 7 days before treatment, 1 week,1,3, 6 and 12 months after treatment
blood biochemistry	whinin 7 days before treatment, 1 week,1,3, 6 and 12 months after treatment	1. alanine aminotransferase; 2. aspartate aminotransferase; 3. total bilirubin; 4. direct bilirubin; 5. The total bile acid (TBA); 6. serum cholinesterase (CHE); 7. albumin; 8. prothrombin time (PT); 9. international normalized ratio (INR)

Trial Locations

Locations (1)

the First Affiliated Hospital of Wenzhou Medical College; 🇨🇳 Wenzhou, Zhejiang, China