In-Vitro Studies in Depletion of Haplotype Mismatched Alloreactive T Cells
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Purpose
The doctors in the Bone Marrow Transplant Service at the Indiana University Cancer Center are working to better understand how the immune cells that cause graft-versus-host disease (a major complication of stem cell transplantation in which the donor immune cells attack the patient's organs) can be selectively removed from the graft, leaving other immune cells that fight infections.
| Condition | Intervention |
|---|---|
|
Hematologic Malignancies Hematopoietic Stem Cell Transplantation |
Procedure: collection of peripheral blood and apheresis samples |
| Study Type: | Observational |
| Study Design: | Observational Model: Case-Only Time Perspective: Prospective |
| Official Title: | In-Vitro Studies in Depletion of Haplotype Mismatched Alloreactive T Cells |
- To develop the optimum conditions for activating the maximum number of alloreactive T cells from clinical scale samples [ Time Frame: 5 years ] [ Designated as safety issue: No ]
- To develop a GMP grade high throughput, flow through immunomagnetic cell separation system for clinical scale depletion of alloreactive T cell, capable of t3log10 depletion of alloreactivity while retaining >80% third party reactivity. [ Time Frame: 5 years ] [ Designated as safety issue: No ]
Biospecimen Retention: Samples Without DNA
peripheral blood, apheresis samples
| Estimated Enrollment: | 25 |
| Study Start Date: | January 2007 |
| Estimated Study Completion Date: | January 2010 |
| Estimated Primary Completion Date: | January 2010 (Final data collection date for primary outcome measure) |
| Groups/Cohorts | Assigned Interventions |
|---|---|
|
1
Patients with hematological malignancies who are undergoing evaluation for autologous or allogeneic stem cell transplants OR First-degree relatives of patients evaluated for stem cell transplantation
|
Procedure: collection of peripheral blood and apheresis samples
Sixty mL of peripheral blood will be collected from consenting eligible donors. Additionally, after the laboratory techniques have been fully evaluated, leukopheresis samples will also be collected.
|
Detailed Description:
The purpose of this research is to study how immune cells (called T cells) that cause graft-versus-host disease (GVHD) can best be selectively separated from other T cells and removed from the cells that will be returned to the cancer patient's body. These other T cells may protect against infection when given to patients after a stem cell transplant. The removal of cells that cause GVHD would allow doctors to safely give back the T cells that protect against infection, without the risk of GVHD.
Eligibility| Ages Eligible for Study: | 18 Years and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
| Sampling Method: | Non-Probability Sample |
Patients from the Bone Marrow Transplant service at the Indiana University Melvin and Bren Simon Cancer Center.
Inclusion Criteria:
- Patients with hematological malignancies who are undergoing evaluation for autologous or allogeneic stem cell transplants will be eligible, if: (1)They have no circulating neoplastic cells in the peripheral blood as assessed by routine morphology or flow cytometry. (2)Patients with acute myeloid or lymphocytic leukemia are in complete remission
- First-degree relatives of patients evaluated for stem cell transplantation will be eligible if: (1) Willing to undergo testing for HIV and hepatitis B and C (free of charge) (2) Not pregnant at time of collection of blood (3)In good general health (4) No prior history of malignancy. (5) Age 18 years or older if donating apheresis product. (Because of the relatively invasive nature of the leukopheresis procedure and difficulties in obtaining consent, children <18 who are first degree relatives of the patient will not undergo apheresis for studies on this protocol)
- Written informed consent
Exclusion Criteria:
-
Contacts and Locations More Information
No publications provided
| Responsible Party: | Sherif Farag, MD, PhD, IU Simon Cancer Center |
| ClinicalTrials.gov Identifier: | NCT00731705 History of Changes |
| Other Study ID Numbers: | 0612-01/ IUCRO-0180 |
| Study First Received: | August 7, 2008 |
| Last Updated: | February 4, 2010 |
| Health Authority: | United States: Institutional Review Board |
Additional relevant MeSH terms:
|
Neoplasms Hematologic Neoplasms Neoplasms by Site Hematologic Diseases |
ClinicalTrials.gov processed this record on May 23, 2013