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MSC for Treatment of cGVHD After Allo-HSCT

Phase 2
Conditions
Chronic Graft-versus-host Disease
Interventions
Biological: Mesenchymal stem cells
Drug: Glucocorticoids
Registration Number
NCT04692376
Lead Sponsor
Nanfang Hospital, Southern Medical University
Brief Summary

The purpose of this study is to evaluate the efficacy of mesenchymal stem cells in patients with chronic graft-versus-host disease.

Detailed Description

Allogeneic hematopoietic stem cell transplantation(allo-HSCT) can cure many hematologic diseases. Although great progress has been made in the prevention and treatment of side effects associated with transplantation,chronic graft-versus-host disease(cGVHD) remains an important complication that occurs in about 50% patients. The mortality of cGVHD and its complication could reach up to 50%,and cGVHD seriously influence the quality of life. At present, the first line treatment of cGVHD remains in discussion.

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 are evolving rapidly with goals of improving hematopoietic engraftment, preventing and treating GVHD after allo-HSCT and so on. However, the efficacy of treatment of cGVHD remains undetermined.

In the present study, the investigators will prospectively evaluate the efficacy and safety of ex-vivo-expanded MSCs in treating patients with cGVHD.

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
152
Inclusion Criteria
  • A patient age of 18-65 years
  • Recipients of allogeneic hematopoietic stem cell transplantation Patients with moderate/ severe cGVHD without systemic treatment
  • Subjects (or their legally acceptable representatives) must have signed an informed consent document indicating that they understand the purpose of and procedures required for the study and are willing to participate in the study
Exclusion Criteria
  • Any abnormality in a vital sign (e.g., heart rate, respiratory rate, or blood pressure)
  • Primary disease relapse
  • Expected lifetime less than 3 months
  • Patients with any conditions not suitable for the trial (investigators' decision)

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
MSCs groupMesenchymal stem cellsMSCs group refers to treatment with mesenchymal stem cells (1×10\^6 cells/kg, intravenously) weekly for 8 doses. Besides, glucocorticoids and cyclosporine (CsA) will be used for treatment concurrently.
Control groupGlucocorticoidsGlucocorticoids and CsA will be used for treatment.
MSCs groupGlucocorticoidsMSCs group refers to treatment with mesenchymal stem cells (1×10\^6 cells/kg, intravenously) weekly for 8 doses. Besides, glucocorticoids and cyclosporine (CsA) will be used for treatment concurrently.
Control groupcyclosporineGlucocorticoids and CsA will be used for treatment.
MSCs groupcyclosporineMSCs group refers to treatment with mesenchymal stem cells (1×10\^6 cells/kg, intravenously) weekly for 8 doses. Besides, glucocorticoids and cyclosporine (CsA) will be used for treatment concurrently.
Primary Outcome Measures
NameTimeMethod
ORR12 weeks after the first dose of MSCs

Overall response rate (ORR)includes complete response (CR) and part response (PR).

Secondary Outcome Measures
NameTimeMethod
Response rate4 weeks after the first dose of MSCs
EBV DNA-emia1 year after the first dose of MSCs

EBV DNA-emia refers to detection of EBV DNA in peripheral blood via PCR.

OS1 year after the first dose of MSCs

Overall survival (OS)

DFS1 year after the first dose of MSCs

Disease-free survival (DFS)

CMV DNA-emia1 year after the first dose of MSCs

CMV DNA-emia refers to detection of CMV DNA in peripheral blood via PCR.

PGF1 year after the first dose of MSCs

Poor graft function (PGF) refers to a slow or incomplete recovery of blood cell counts (ANC ≤0.5x10\^9/L and PLT ≤20x10\^9/L) by +28 days after allo-HSCT or a fall in blood cell counts to levels fulfilling the diagnostic criteria for PGF after successful and prompt hematopoietic engraftment.

Trial Locations

Locations (1)

Department of Hematology,Nanfang Hospital, Southern Medical University

🇨🇳

Guangzhou, Guangdong, China

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