NCT01765634

Mesenchymal Stem Cells for Treatment of Refractory Acute Graft-versus-host Disease

Mesenchymal Stem Cells From Third-party Donors for Treatment of Refractory Acute Graft-versus-host Disease

• Status: Unknown
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 40 (estimated)
• Sponsor: Nanfang Hospital, Southern Medical University · Academic / Other
• Sex: All
• Age: 12 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to evaluate the utility of treating patients experiencing refractory acute graft-versus-host disease with ex-vivo-expanded BM-drived mesenchymal stem cells from third-party donors. The objective was to evaluate the effect and safety of such treatment on refractory acute 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,acute graft-versus-host disease(aGVHD) remains an important complication that occurs in 35-80% patients. The mortality of aGVHD is positively correlated with its severity. At present, glucocorticoids is still the first line treatment of aGVHD. If glucocorticoids treatment is ineffective, second line drugs would be taken, such as tacrolimus(FK506), mycophenolate mofetil (MMF)and antithymocyte globulin (ATG). However, no method could be continuously effective. The effective rates of second line treatment to aGVHD is only about 60%. The effective rates and prognosis of refractory aGVHD are even worse. 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 refractory aGVHD using expanded BM-derived MSCs from a third-party donor is rarely reported. If such treatment could be shown to be effective and safe, BM-derived MSCs could potentially be used as an universal donor material. This would have a major impact because the generation of donor-specific MSCs is time-consuming, costly, and often impractical if the clinical status of a patient is urgent. In the present study, the investigators will prospectively evaluate the efficacy and safety of ex-vivo-expanded BM-derived MSCs from third-party donors in treating patients with refractory aGVHD.

Conditions

• Acute Graft-versus-host Disease

Interventions

Type	Name	Description
BIOLOGICAL	Mesenchymal stem cells	Mesenchymal stem cells will be intravenously infused via a central venous catheter(at a dose of 1×10\^6 cells/kg, over 15 min) each week, four times for a cycle.
BIOLOGICAL	Non-mesenchymal stem cells	Other second line drugs are taken.

Timeline

• Start date: 2013-01-01
• Primary completion: 2015-12-01
• Completion: 2016-12-01
• First posted: 2013-01-10
• Last updated: 2013-01-10

Locations

1 site across 1 country: China