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G-CSF PMRD: Granulocyte Colony Stimulating Factor (G-CSF) Stimulated Bone Marrow and In Vivo T-Cell Depletion in Patients With Hematologic Malignancies or Bone Marrow Failure Syndrome

2014-07-23 21:47:39 | BioPortfolio

Summary

The purposes of this study are:

- To examine the engraftment rate in patients receiving in vivo T-cell-depleted G-CSF stimulated bone marrow from partially mismatched related donors.

- To evaluate the incidence and severity of acute and chronic graft-versus-host disease in patients receiving in vivo T-cell-depleted G-CSF stimulated bone marrow from partially mismatched related donors.

Description

This study is a single-arm, non-randomized feasibility study. Patients meeting the criteria for this study will be entered sequentially until completion or closure of the study. Early stopping rules will be employed to ascertain whether an unacceptable rate of toxicity (non-engraftment, and/or acute GVHD) occurs.

Patients will be prepared for transplant through the administration of the following conditioning regimen based on their primary disease:

- Total body irradiation (1400 rads in 8 fractionated doses) and high dose chemotherapy, including cytosine arabinoside, etoposide, and cyclophosphamide. Patients with bone marrow failure syndrome will not receive etoposide in the conditioning regimen.

- Post transplant immunosuppression prophylaxis against acute GVHD will include sequential administration of cyclosporine, methotrexate, basiliximab and mycophenolate.

- The donor will receive 3 daily G-CSF injections prior to marrow harvest starting on day -3. The injections may be initiated by the donor's primary physician prior to donor's arrival, or by the BMT service at Children's Healthcare of Atlanta.

- Patients will receive daily GM-CSF injections (250 mcg/m2) starting from day +7 post transplant until absolute neutrophil count (ANC) is greater than 2,000/µL for three days.

Study Design

Allocation: Non-Randomized, Control: Active Control, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Hematologic Malignancies

Intervention

Granulocyte Colony Stimulating Factor

Location

Children's Healthcare of Atlanta/Emory University
Atlanta
Georgia
United States
30322

Status

Recruiting

Source

Emory University

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:47:39-0400

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Medical and Biotech [MESH] Definitions

Glycoproteins found in a subfraction of normal mammalian plasma and urine. They stimulate the proliferation of bone marrow cells in agar cultures and the formation of colonies of granulocytes and/or macrophages. The factors include INTERLEUKIN-3; (IL-3); GRANULOCYTE COLONY-STIMULATING FACTOR; (G-CSF); MACROPHAGE COLONY-STIMULATING FACTOR; (M-CSF); and GRANULOCYTE-MACROPHAGE COLONY-STIMULATING FACTOR; (GM-CSF).

Receptors that bind and internalize GRANULOCYTE COLONY-STIMULATING FACTOR. Their MW is believed to be 150 kD. These receptors are found mainly on a subset of myelomonocytic cells.

Granulocyte colony stimulating factors prepared by recombinant DNA technology.

A glycoprotein of MW 25 kDa containing internal disulfide bonds. It induces the survival, proliferation, and differentiation of neutrophilic granulocyte precursor cells and functionally activates mature blood neutrophils. Among the family of colony-stimulating factors, G-CSF is the most potent inducer of terminal differentiation to granulocytes and macrophages of leukemic myeloid cell lines.

Receptors that bind and internalize the granulocyte-macrophage stimulating factor. Their MW is believed to be 84 kD. The most mature myelomonocytic cells, specifically human neutrophils, macrophages, and eosinophils, express the highest number of affinity receptors for this growth factor.

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