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Clinical Trial Summary

One risk of a stem cell transplant is that the donated stem cells do not grow in the recipient. This is called graft rejection. Previous laboratory research has suggested that the reaction between the recipient's cells and the donor's cells that causes graft rejection is associated with an anti-cancer effect. In this research study the investigators will give participants some of their own white blood cells after their transplant. This is called a recipient leukocyte infusion (RLI). This is done to cause the participant's immune system to react against the donor's cells and reject the transplant. The purpose of this research study is to learn if the graft rejection has an anti-cancer effect.


Clinical Trial Description

- The first 10 participants (Group 1) will receive a conditioning regimen of total body irradiation (TBI) before the stem cell transplant. It is possible this conditioning regimen may suppress the immune system enough. This can cause the stem cell transplant to be rejected to quickly. It is necessary for the transplant to begin to grow before it is rejected. If the participants in Group 1 reject their stem cell transplant too quickly, the next group of 10 participants (Group 2) will receive a medication called fludarabine for three days before the TBI. The purpose of adding fludarabine is to suppress the immune system enough to allow the transplant to initially grow. An additional RLI may be given 2 weeks after the first RLI.

- Before the conditioning regimen (either TBI or fludarabine), participants will undergo a procedure to collect their white blood cells called leukapheresis. The white blood cells collected will then be frozen and stored and given to the participant as an RLI on Day 38 after their stem cell transplant.

- Participants will receive their donor's stem cells about 4-6 hours after TBI. They will also receive the following medications to prevent GVHD: Cyclosporine orally until about day 35 and Mycophenolate Mofetil (MMF) orally until 21 days after the stem cell transplant. ;


Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT00981760
Study type Interventional
Source Massachusetts General Hospital
Contact Bimal Dey, MD
Phone 617-724-1124
Status Recruiting
Phase Phase 2/Phase 3
Start date July 2008
Completion date June 2010

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