NCT00586690

Safety Trial of NK DLI From 6/6 HLA Matched Family Member Following Nonmyeloablative ASCT

Safety Trial of Natural Killer (NK) Cell Donor Lymphocyte Infusions(DLI) From 6/6 Human Leukocyte Antigen (HLA) Matched Family Member Following Nonmyeloablative Allogeneic Stem Cell Transplantation (ASCT)

• Status: Completed
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 47 (actual)
• Sponsor: David Rizzieri, MD · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Evaluate the safety of natural killer (NK) cell infusion using CD56 monoclonal antibody selected with Miltenyi Biotec system following nonmyeloablative stem cell transplantation (SCT) from matched donors. This pilot study will evaluate toxicity including mortality, occurrence of acute graft versus host disease and other severe toxicity.

Detailed description

The use of non-selected donor lymphocyte infusions (DLIs) (to help early immune recovery and induce antitumor response) following nonmyeloablative allogeneic stem cell transplantation (ASCT) is also complicated by the risk of acute graft versus host disease (aGVHD) with 30-40% of patients experiencing grade III-IV aGVHD. Data suggests that the use of natural killer (NK) cells (instead of nonselected DLIs) in this setting may mediate a graft versus tumor (GVT) effect independently of aGVHD. This pilot study is designed to evaluate the efficacy and toxicity of donor natural killer (NK) cell selection and infusion following nonmyeloablative allogeneic stem cell transplantation (ASCT) from matched donors.

Conditions

• Lymphoma

Interventions

Type	Name	Description
DEVICE	NK Cell infusion using CD56 monoclonal antibody	The cells from leukapheresis will be natural killer (NK) cell selected using a CD56 antibody and a cell column system provided by Miltenyi Biotec. The target cell dose for each NK cell infusion will be up to 1 X 10(7) CD56+ cells/kg patient weight with less than 0.5 X 10(6) CD3+ cells/kg patient weight. The first NK cell infusion will be administered 6 weeks post transplant in patients who have ≤ grade II acute graft versus host disease (aGVHD) at the time of infusion. Patients will be evaluated for toxicity and response until 20 weeks after the last NK Infusion.
PROCEDURE	Donor Apheresis	Apheresis repeated daily up to 3 days until target dose of cells reached (preferably without donor receiving growth factors). Cells were transfused immediately after collection and processing. If collections occurred during initial mobilization at the time of stem cell transplant, the donor was off growth factor for \>24 hours. These extra cell collections from the donor were sufficient for the natural killer cells used in the trial. The cells were NK selected using a CD56 antibody (CliniMACS CD56 Reagent), CliniMACSplus instrument and CliniMACS tubing set provided by Miltenyi Biotec using the company protocol (Miltenyi Biotec Inc, Auburn, California). Pre and post processing cell count, viability, Hematopoietic Progenitor Cell Assay (HPCA) and flow analysis were done.

Timeline

• Start date: 2005-05-01
• Primary completion: 2013-05-01
• Completion: 2013-11-01
• First posted: 2008-01-04
• Last updated: 2017-02-08
• Results posted: 2014-06-02

Locations

1 site across 1 country: United States