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LeukapheresisNCT01277549

Evaluation of the Spectra Optia® Apheresis System Mononuclear Cell (MNC) Collection Procedure in Healthy Blood Donors

An observational study of Leukapheresis, run by Terumo BCT at 3 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this protocol is to characterize the performance of CaridianBCT's Spectra Optia Apheresis System, when used to collect mononuclear cells (MNCs) and cluster of differentiation 34 (CD34) positive cells from healthy nonmobilized blood donors and healthy G-CSF (granulocyte colony stimulating factor)… Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Leukapheresis
What is being tested?
Mononuclear cell collection.
Type of treatment
Medical device
How many people
71 participants
Where
3 sitesUnited States
Study dates
Jan 2011to Sep 2011
Phase
Observational
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: Healthy Community Volunteers

Who may be able to join

  • Acceptable health history to allow blood product collection
  • Weight >50<125 Kg (kilogram).
  • Male or non-pregnant, non-nursing female.
  • General good health, as determined by questionnaire.
  • Normal prescreening complete blood count.
  • Platelet count>150 x 10^3/uL (microliter) at initial screening and >120 x 10^3/uL immediately prior to leukapheresis.
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  • Adequate peripheral venous access to allow collection of product.
  • Able to read, understand, and sign the informed consent form. Additional Inclusion Criteria for Mobilized Subjects
  • If male, be willing to use a condom during sexual relations with a female partner until 48 hours following the last G-CSF injection.
  • If female and of childbearing potential, be willing to use a medically acceptable contraceptive until 48 hours following the last G-CSF injection.

Who cannot join

  • a) Collection or loss of:
  • more than a ½ pint (1 cup) of whole blood within the prior 56 days or,
  • more than 3 L (liter) of whole blood or 1.5 L of red blood cells within the prior 12 months or,
  • more than 12 L of plasma within the prior 12 months or,
  • a leukapheresis within the prior six weeks or,
  • a plateletpheresis within the prior 48 hours or two within the prior 7 days or twenty-four within the last 12 months or,
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  • a plasmapheresis within the prior 48 hours or two within the prior 7 days.
  • Acute or symptomatic chronic lung disease.
  • Active or chronic heart disease, including hypertension controlled by medication.
  • History of hematologic malignancy or chronic hematologic disorder or bleeding disorder.
  • Reactive test indicative of infection with T. pallidum, Human T-lymphotropic virus, HIV, Hepatitis C Virus, or Hepatitis B Virus (except isolated Hepatitis B Core Antibody Reactivity.
  • Presence of psychological traits or physiological or medical conditions that would make subject unlikely to tolerate the procedures.
  • Subjects taking prescription medications other than those deemed allowable by the investigator.
  • Abnormal serum electrolytes or serum calcium levels.
  • Abnormal serum creatinine level.
  • Abnormal liver function results on ALT (alanine amino transferase) test.
  • Abnormal coagulation testing on prothrombin time or partial thromboplastin time.
  • Inadequate antecubital veins for leukapheresis or inability or unwillingness to tolerate leukapheresis.
  • If female, pregnant or lactating. Additional Exclusion Criteria for Mobilized Subjects
  • Received a G-CSF injection in the prior 4 months, or received more than twenty-five (25) doses of G-CSF (a dose includes several individual injections administered on one occasion).
  • Known hypersensitivity to G-CSF or any E. coli-derived products.
  • History of autoimmune condition or disorder, unless approved by principal investigator.
  • Immediate family history (parents, grandparents, siblings, children) of hematologic malignancy.
  • Active or history of iritis (anterior uveitis) or episcleritis.
  • History of deep vein thrombosis or pulmonary embolism.
  • Current treatment with lithium.
  • Spleen tip palpable during physical exam.
  • Positive SickleDex test.

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Leukolab/Allcells

    Emeryville, California, 94608

  • Key Biologics

    Memphis, Tennessee, 38104-3401

  • Blood Center of Wisconsin

    Milwaukee, Wisconsin, 53233

Other trials in United States

About this study

The purpose of this protocol is to characterize the performance of CaridianBCT's Spectra Optia Apheresis System, when used to collect mononuclear cells (MNCs) and cluster of differentiation 34 (CD34) positive cells from healthy nonmobilized blood donors and healthy G-CSF (granulocyte colony stimulating factor) mobilized blood donors, respectively.

Conditions
Leukapheresis
Being tested
Mononuclear cell collection.
Keywords
Leukapheresis, Hematopoetic Stem Cell Mobilization

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Mononuclear cell collection.Device

    Each donor will undergo one apheresis procedure to collect mononuclear cells from their peripheral blood.

Study groups in NCT01277549
Study groupRoleWhat they receive
Non-mobilized donorsIn this arm the collection efficiency of mononuclear cells from non-mobilized donors will be studied.
Receives: Device: Mononuclear cell collection.
G-CSF mobilized donorsIn this arm the collection efficiency of CD34+ cells will be studied.
Receives: Device: Mononuclear cell collection.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mononuclear Cell Collection Efficiency

    The collection efficiency for a given cell type is defined as the percent of processed cells of that cell type that are in fact collected.

    Measured: One day

  2. CD34+ Cell Collection Efficiency

    The collection efficiency for CD34+ cells is defined as the percent of processed CD34+ cells that were in fact collected.

    Measured: one day

Secondary outcomes (4)
  1. Platelet Collection Efficiency

    Platelet contamination of the cell product was measured as the platelet collection efficiency, that is, as the percent of platelets processed that were collected.

    Measured: One Day

  2. Hematocrit of MNC Product

    The hematocrit of the collected product was used to quantitate RBC (red blood cell) contamination.

    Measured: One Day

  3. Granulocyte % of MNC Product

    Granulocyte contamination of the MNC product was quantitated as the percent of total product WBC (white blood cell) that were segmented granulocytes or bands.

    Measured: One day

  4. Viability of the Collected MNC Product

    The viability of the collected white blood cells was assessed using the 7-AAD (7-amino actinomycin D) viability dye in a flow cytometric assay. Viability assessment is incorporated into the CD34 assay. This assay was only performed on G-CSF mobilized donors as nonmobilized donor have too few CD34+ cells to detect. Thus viability of the collected WBCs is reported only for the G-CSF mobilized arm.

    Measured: One day

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Jan 2011 (estimated)
  2. Study startJan 2011
  3. Primary completionSep 2011
  4. Study completionSep 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
71 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01277549
Sponsor's protocol ID
BCT10-03
Status last verified
May 2013
First submitted
13 Jan 2011
Last updated
3 May 2013
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Leukapheresis, run by Terumo BCT at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 10 inclusion and 28 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 May 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 3 May 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mononuclear Cell Collection Efficiency (time frame: One day). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 May 2013.

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