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Improving White Blood Cell Collection From Healthy Donors
NCT01553214 · View on ClinicalTrials.gov ↗
Study Summary
Background: \- White blood cells called granulocytes help the body fight infection. People who have had chemotherapy or bone marrow transplants may have very low numbers of these cells. Transfusions of these cells can help improve the body's ability to fight infection. However, most of the cells are located in the bone marrow or spleen, and are hard to collect from healthy donors. Two drugs, filgrastim and dexamethasone, can help move the cells to the bloodstream to be collected by apheresis. Researchers want to study the best ways to collect these white blood cells. They also want to monitor the effects of the injections and donations on the volunteer donors. Objectives: \- To improve the amount and quality of granulocytes (white blood cells) collected by apheresis for donation. Eligibility: \- Healthy volunteers between 18 and 75 years of age. Design: * Participants will be screened with a physical exam and medical history. Initial blood tests will be done to check for eligibility. * Participants will donate granulocytes by apheresis a maximum of 12 times in 1 year. Donations will not usually be requested more often than every 4 weeks. Donors will be allowed to decline participation at any time. * Participants will have one injection of filgrastim 12 to 24 hours before donation. They will also have two tablets of dexamethasone 12 hours before donation. * White blood cells will be collected through apheresis. The apheresis will last about 2 hours. * Participants will be eligible to donate until they reach their 76th birthday.
Conditions Studied
Interventions
- DRUG Dexamethasone
- DRUG Filgrastim
Study Locations (1)
Maryland
- National Institutes of Health Clinical Center — Bethesda
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 1,000 participants |
| Start Date | 2012-12-31 |
| Est. Completion | 2032-01-01 |
| Phase | Phase 4 |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT01553214
The ClinicalTrials.gov registry entry for NCT01553214 describes a study currently listed as recruiting. It is categorized as Phase 4, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 1,000 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is National Institutes of Health Clinical Center (CC), which has 209 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 1 condition, with Allogeneic Granulocyte Donation appearing as the primary indexed condition, and to 2 interventions — of which Dexamethasone is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT01553214 reports 1 study location spanning 1 distinct geographic area — top geographies include Maryland. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
Frequently Asked Questions
What is clinical trial NCT01553214 about?
NCT01553214 is a clinical study titled "Improving White Blood Cell Collection From Healthy Donors". Background: \- White blood cells called granulocytes help the body fight infection. People who have had chemotherapy or bone marrow transplants may have very low numbers of these cells. Transfusions of these cells can help improve the body's ability to fight infection. However, most of the cells ar...
What is the current status of trial NCT01553214?
This trial is currently recruiting. It is a Phase 4 study. The enrollment target is 1,000 participants. The study started on 2012-12-31. Estimated completion is 2032-01-01.
What conditions does trial NCT01553214 study?
This clinical trial studies the following conditions: Allogeneic Granulocyte Donation. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT01553214?
The interventions under investigation include: Dexamethasone (DRUG), Filgrastim (DRUG). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT01553214?
This trial is sponsored by National Institutes of Health Clinical Center (CC), which has 209 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT01553214 being conducted?
This trial has 1 study location across Maryland. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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