MSCs With or Without Peripheral Blood Stem Cell for Treatment of Poor Graft Function and Delayed Platelet Engraftment

September 13, 2014 updated by: Qifa Liu, Nanfang Hospital of Southern Medical University

Mesenchymal Stem Cells With or Without G-CSF Mobilized Peripheral Blood Stem Cell for Treatment of Poor Graft Function and Delayed Platelet Engraftment After Allogeneic Hematopoietic Stem Cell Transplant

The purpose of this study is to compare the efficacy of mesenchymal stem cells (MSCs) with or without granulocyte colony-stimulating factor (G-CSF) mobilized peripheral stem cells (PBSC) in treating patients experiencing poor graft function or delayed platelet engraftment after allogeneic hematopoietic stem cell transplantation.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Allogeneic hematopoietic stem cell transplantation(allo-HSCT) is the only cure for many hematologic diseases. However, about 5-27% of patients would suffer from poor graft function (PGF) and more recipients might develop delayed platelet engraftment (DPE) after allo-HSCT. These complications are associated with considerable mortality related to infections or hemorrhagic complications. Treatment of PGF and DPE usually involves hematopoietic growth factors such as granulocyte colony-stimulating factor (G-CSF) and thrombopoietin (TPO), or second transplantation, but these methods have dismal effect or even a significant risk of graft-versus-host disease (GVHD).

Mesenchymal stem cells (MSCs) are a form of multipotent adult stem cells that can be isolated from bone marrow (BM), adipose tissue, and cord blood. Clinical applications of human MSCs include improving hematopoietic engraftment, preventing and treating graft-versus-host disease after allo-HSCT and so on. Some studies have shown that MSCs combined with PBSC or cord blood could be useful to improve engraftment after HSCT. Several reports suggested MSCs might be effective in the treatment of PGF.

However, the efficacy of MSCs as single-drug treatment for PGF or DPE is unsatisfactory in our previous study. Therefore, in the present study, G-CSF mobilized PBSC will be used combined with MSCs in the patients with PGF or DPE after allo-HSCT.

Study Type

Interventional

Enrollment (Anticipated)

120

Phase

  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Guangdong
      • Guangzhou, Guangdong, China, 510515
        • Recruiting
        • Department of Hematology,Nanfang Hospital, Southern Medical University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years to 65 years (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age：14-65 years
  • PGF or DPE after allo-HSCT
  • Subjects (or their legally acceptable representatives) must have signed an informed consent document

Exclusion Criteria:

  • Any abnormality in a vital sign (e.g., heart rate, respiratory rate, or blood pressure)
  • Patients with any conditions not suitable for the trial (investigators' decision)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: MSCs&PBSC
PBSC will be intravenously infused at a dose of 2×10^8/kg. MSCs will be intravenously infused at a dose of 1×10^6 cells/kg once per week or until complete response(CR) . If the patients do not achieve CR or partial remission (PR) within 4 weeks, they will swithed to other therapy. If the patients achieve PR within 4 weeks, a second course of the same treatment will be given.
Biological: MSCs
Biological: PBSC
Experimental: MSCs
MSCs will be intravenously infused at a dose of 1×10^6 cells/kg once per week or until CR. If the patients have no response (NR) within 4 weeks, they will switch to other therapy. If the patients achieve PR within 4 weeks, a second course of the same treatment will be given.
Biological: MSCs

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Participants with Hematopoietic Recovery
Time Frame: 1 year
Hematopoietic reconstitution post-transplantation is defined as reconstitution of both neutrophil and platelet numbers. Neutrophil reconstitution is defined as occurring on the first 3 consecutive days with an neutrophil(NEU)>0.5×10^9/L, and platelet (PLT) reconstitution is defined as the first >20×10^9/L for 3 consecutive days.
1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of primary underlying disease relapse
Time Frame: 1 year
1 year
Incidence of graft-versus-host disease
Time Frame: 1 year
Graft-versus-host disease (GVHD) includes acute GVHD and chronic GVHD.
1 year
Incidence of infections
Time Frame: 1 year
Infections include bacterial, invasive fungal and viral infections
1 year
Incidence of acute toxicity
Time Frame: up to 100 days
Acute toxicity mainly involves the heart,live and kidney.
up to 100 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Nanfang Hospital of Southern Medical University

Collaborators

Peking University People's Hospital
Sun Yat-sen University
Guangzhou First People's Hospital
Huazhong University of Science and Technology
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
Guangdong Provincial People's Hospital
Third Affiliated Hospital, Sun Yat-Sen University
Guangzhou General Hospital of Guangzhou Military Command
Southern Medical University, China
Academy Military Medical Science, China

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2014

Primary Completion (Anticipated)

September 1, 2018

Study Completion (Anticipated)

December 1, 2018

Study Registration Dates

First Submitted

September 13, 2014

First Submitted That Met QC Criteria

September 13, 2014

First Posted (Estimate)

September 16, 2014

Study Record Updates

Last Update Posted (Estimate)

September 16, 2014

Last Update Submitted That Met QC Criteria

September 13, 2014

Last Verified

September 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • NFH-PBSC-MSC-PGF-2014

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.

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