Filgrastim-Mobilized Stem Cells for Transplantation Using Unrelated Donors
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ClinicalTrials.gov Identifier: NCT00785525 |
Recruitment Status :
Recruiting
First Posted : November 5, 2008
Last Update Posted : June 19, 2019
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The purpose of the study is to:
- Establish and evaluate a system for collection of filgrastim-mobilized peripheral blood stem cells from National Marrow Donor Program donors (NMDP) donors
- Assess the safety among NMDP donors of filgrastim administration and PBSC leukapheresis
- Assess the safety and efficacy of filgrastim-mobilized PBSC in unrelated donor hematopoietic stem cell transplant recipients
- Determine the acceptability of stem cell donation by filgrastim stimulated apheresis in normal donors
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Healthy | Drug: Filgrastim | Phase 3 |
For many years, allogeneic bone marrow transplantation has been used to successfully treat leukemias, other hematologic conditions and congenital disorders. The first unrelated donor transplants were performed in the late 1970s, but this procedure did not become widely available until the development of several consolidated unrelated donor registries around the world. The National Marrow Donor Program, established in 1987, is the world's largest registry and currently lists more than 7 million donors. Since its beginning, NMDP has facilitated more than 30,000 unrelated transplants.
Although not a licensed indication, considerable experience has been accumulated concerning administration of filgrastim to normal adults. Most of these adults were volunteer research subjects or donors of PBSC for use in related donor transplants. Beginning in February 1997, filgrastim stimulated PBSC have been collected from NMDP donors under protocol. The protocol (locally referred to as G2) began under an NMDP-sponsored Investigational New Drug (IND) application filed with FDA for collecting PBSC for a second donation following an initial donation of bone marrow. In 1999 a second protocol was opened (locally referred to as G1) as requests for PBSC as a primary donation source became more common. In 2005 the two protocols were combined to eliminate redundancy and provide for ease of use.
The protocol establishes and evaluates a system to supply peripheral blood stem cell (PBSC) products for use in unrelated donor hematopoietic stem cell (HSC) transplantation. The protocol describes processes for donor identification, education and evaluation. Procedures for administration and monitoring of the stem cell mobilizing agent filgrastim are included. The protocol also describes procedures for the collection of PBSC products by leukapheresis and includes provisions for long term donor follow-up.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 40000 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Other |
Official Title: | Filgrastim-Mobilized Peripheral Blood Stem Cells for Allogeneic Transplantation With Unrelated Donors |
Actual Study Start Date : | February 1997 |
Estimated Primary Completion Date : | January 2022 |
Estimated Study Completion Date : | January 2022 |

- Drug: Filgrastim
PBSC donors will receive 10 µg/kg of filgrastim subcutaneously each day of a five day mobilization schedule.Other Name: Neupogen®, GCSF
- Establish and evaluate a system for collection of filgrastim-mobilized peripheral blood stem cells from NMDP donors. [ Time Frame: Ongoing ]
- Assess the safety among NMDP donors of filgrastim administration and PBSC leukapheresis [ Time Frame: Ongoing ]
- Assess the safety and efficacy of filgrastim-mobilized PBSC in unrelated donor hematopoietic stem cell transplant recipients [ Time Frame: Ongoing ]
- Determine the acceptability of stem cell donation by filgrastim stimulated apheresis in normal donors [ Time Frame: Ongoing ]

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Ages Eligible for Study: | 18 Years to 60 Years (Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- PBSC donors must meet the same criteria as NMDP marrow donors. These criteria are set forth in NMDP Standards and the Donor Center Manual of Operations.
Exclusion Criteria:
- Pregnancy or uninterruptible breastfeeding. Pregnancy is an absolute contraindication under this protocol. Women who are breastfeeding must be willing and able to interrupt breastfeeding during the administration of filgrastim and for two days following the final dose.
- Sensitivity to filgrastim or to E. coli-derived recombinant protein products.
- History of autoimmune disorders, including rheumatic diseases and thyroid disorders. Exception: As with bone marrow donations, donors with a history of thyroid disease who have undergone successful therapy may be suitable.
- History of deep vein thrombosis or pulmonary embolism.
- History of iritis or episcleritis.
- Thrombocytopenia < 150 x 10(9)/L (< 150,000/µL) at baseline evaluation.
- Current treatment with lithium. Drug interactions between filgrastim and lithium, which may potentiate the release of neutrophils, have not been fully evaluated.
- Positive Hemoglobin-Solubility (e.g., SickleDex™ or equivalent) test.
- Donors receiving experimental therapy or investigational agents.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00785525
Contact: Christine Jacox | 612-627-8130 | christine.jacox@nmdp.org |

Principal Investigator: | John P Miller, MD, PhD | National Marrow Donor Program |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Center for International Blood and Marrow Transplant Research |
ClinicalTrials.gov Identifier: | NCT00785525 |
Other Study ID Numbers: |
PBSC |
First Posted: | November 5, 2008 Key Record Dates |
Last Update Posted: | June 19, 2019 |
Last Verified: | June 2019 |
Healthy Unrelated Stem Cell Donors |
Lenograstim Adjuvants, Immunologic Immunologic Factors Physiological Effects of Drugs |