Ignite Creation Date:
2024-05-05 @ 10:55 PM
Last Modification Date:
2024-10-26 @ 10:25 AM
Study NCT ID:
NCT01213186
Status:
UNKNOWN
Last Update Posted:
2013-05-29
First Post:
2010-09-28
Brief Title:
Umbilical Cord Mesenchymal Stem Cells for Immune Reconstitution in HIV-infected Patients
Sponsor:
Fu-Sheng Wang
Organization:
Beijing 302 Hospital
Study Overview
Official Title:
Phase 2 Study of UC-MSC in Restoring CD4 T Cell Counts and Reducing Immune Activation in HIV-infected Patients Underlying Long-term Antiviral Therapy a Multicenter Does-escalating Randomized Double-blind Controlled Trial
Status:
UNKNOWN
Status Verified Date:
2013-05
Last Known Status:
RECRUITING
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
HIV-1 infection is characterized by progressive depletion of CD4 T cells that eventually leads to clinically significant immunodeficiency A chronic generalized immune activation is now being recognized to be the main driving force for T cell depletion loss of anti-HIV-1 immunity and disease progression during chronic HIV-1 infection However it is still unknown whether reducing immune activation will restore CD4 T cell counts and leading to immune reconstitution in chronic HIV infection Mesenchymal stem cells MSC have been demonstrated to decrease immune responses of the host and can suppress inflammation in HIV-infected non-responders Here the investigators propose a hypothesis that MSC can reduce immune activation which subsequently lead to the restoration of CD4 T-cell counts dependent on dose of transfused MSCs in HIV-infected patients
Detailed Description:
Although HIV-1 infection is characterized by progressive depletion of CD4 T cells that eventually leads to clinically significant immunodeficiency a chronic generalized immune activation is now being recognized to be the main driving force for T cell depletion loss of anti-HIV-1 immunity and disease progression during chronic HIV-1 infection In particular this immune activation has been identified as a disease determinant independent of viral load or cell death in HIV-1 infection A series of clinical evidences have indicated that activated CD8 T cells may attack body cells infected with viruses Because of this CD4 cells infected with HIV are frequently destroyed by CD8 cells
Mesenchymal stem cells MSCs are the adult stem cells originating from the mesenchymal and connective tissue of bone marrow adipose tissue placenta umbilical cord cord blood peripheral blood liver etc These cells show immunomodulation self-renewal and multi-directional differentiation potential In particular MSCs have recently emerged as promising candidates for cell-based immunotherapy because they can modulate the immune response in various ways A series of studies have indicated that secretion of dissoluble cytokines and direct contact with MSCs can block the development and functioning of antigen-presenting cells inhibit the differentiation of B cells and suppress the immune response of T cells and natural killer cells The immunosuppressive effect of infused MSCs has been successfully employed in the treatment of acute severe graft-versus-host disease GVHD Thus MSC may reduce inflammatory responses and promote tissue recovery in human diseases
The purpose of this study is to learn what dose of transfused MSC reduces the level of activation of CD8 cells in people infected with HIV The decreased activation of CD8 cells may lead to a more CD4 T cell restoration in HIV infection This study will also look at what dose of MSCs is tolerated and its safety in HIV- infected patients
Participants in this study will be randomly assigned to one of three treatment arms
Arm AParticipants will receive 48 weeks of low dose of MSC treatment followed by 48-week follow-up observation
Arm BParticipants will receive 48 weeks of high dose of MSC treatment followed by 48-week follow-up observation
Arm C Participants will receive 48 weeks of saline placebo followed by 48-week follow-up observation
Study treatment will be given at 0 4 12 24 36 and 48 week since the onset of treatment There will be an additional 48 weeks of follow-up for purposes of safety After treatment has started participants will be asked to come to the clinic on Weeks 4 12 24 36 48607284 and 96 At each visit participants will receive enough study treatment to last until the next visit Each visit will last between 2 and 3 hours At most visits participants will have a physical exam answer questions about any medications they are taking and how they are feeling and have blood drawn for safety to assess CD4CD8 cell counts and viral load Some additional blood will also be stored for immunology testing At some visits participants will be asked questions about their medication and medical history have pupils dilated have a hearing test and have an electrocardiogram EKG Some visits will require participants to arrive fasting Pregnancy tests may also be conducted if the participant is able to become pregnant or if pregnancy is suspected
Mesenchymal stem cells MSCs are the adult stem cells originating from the mesenchymal and connective tissue of bone marrow adipose tissue placenta umbilical cord cord blood peripheral blood liver etc These cells show immunomodulation self-renewal and multi-directional differentiation potential In particular MSCs have recently emerged as promising candidates for cell-based immunotherapy because they can modulate the immune response in various ways A series of studies have indicated that secretion of dissoluble cytokines and direct contact with MSCs can block the development and functioning of antigen-presenting cells inhibit the differentiation of B cells and suppress the immune response of T cells and natural killer cells The immunosuppressive effect of infused MSCs has been successfully employed in the treatment of acute severe graft-versus-host disease GVHD Thus MSC may reduce inflammatory responses and promote tissue recovery in human diseases
The purpose of this study is to learn what dose of transfused MSC reduces the level of activation of CD8 cells in people infected with HIV The decreased activation of CD8 cells may lead to a more CD4 T cell restoration in HIV infection This study will also look at what dose of MSCs is tolerated and its safety in HIV- infected patients
Participants in this study will be randomly assigned to one of three treatment arms
Arm AParticipants will receive 48 weeks of low dose of MSC treatment followed by 48-week follow-up observation
Arm BParticipants will receive 48 weeks of high dose of MSC treatment followed by 48-week follow-up observation
Arm C Participants will receive 48 weeks of saline placebo followed by 48-week follow-up observation
Study treatment will be given at 0 4 12 24 36 and 48 week since the onset of treatment There will be an additional 48 weeks of follow-up for purposes of safety After treatment has started participants will be asked to come to the clinic on Weeks 4 12 24 36 48607284 and 96 At each visit participants will receive enough study treatment to last until the next visit Each visit will last between 2 and 3 hours At most visits participants will have a physical exam answer questions about any medications they are taking and how they are feeling and have blood drawn for safety to assess CD4CD8 cell counts and viral load Some additional blood will also be stored for immunology testing At some visits participants will be asked questions about their medication and medical history have pupils dilated have a hearing test and have an electrocardiogram EKG Some visits will require participants to arrive fasting Pregnancy tests may also be conducted if the participant is able to become pregnant or if pregnancy is suspected
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None