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Sponsored by: |
National Institute on Aging (NIA) |
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Information provided by: | National Institute on Aging (NIA) |
ClinicalTrials.gov Identifier: | NCT00104325 |
This study is designed to collect white blood cells from healthy volunteers. The cells will be used without identifiers in laboratory research to study the function of various types of white blood cells.
Condition |
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Healthy |
Study Type: | Observational |
Study Design: | Prospective |
Official Title: | Cytapheresis of Volunteer Donors |
White blood cell plasma
Estimated Enrollment: | 200 |
Study Start Date: | July 2003 |
The white blood cells will be collected through a machine separation process called cytapheresis (cell removal). This machine process allows for the collection of larger amounts of white blood cells with less fluid and red blood cell loss to the donor.
Participants in this study are asked questions about their health and medical history. If this is satisfactory, an evaluation/screening visit is scheduled. This evaluation consists of an assessment of the arms to see if veins are large enough, an explanation of the study and obtaining study consent, the completion of a health history questionnaire, and blood and urine testing.
Participants are contacted 3-5 days after completion of the screening tests. If eligible, an appointment for the collection procedure is made.
The staff supervised collection procedure takes about two hours and involves placing a needle in each arm. Blood is drawn from one needle into the centrifuge and is spun to separate the cells. Small portions of the donor's white blood cells are removed (about a half pint of white blood cells including plasma over the two hour procedure). The donor's blood that is not being collected is returned to the donor through a needle in the other arm.
Donors are asked to schedule repeat donations. Donors are eligible to repeat this procedure every 56 days.
Ages Eligible for Study: | 18 Years and older |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | Yes |
Sampling Method: | Non-Probability Sample |
Healthy male and female donors 18 and over
Inclusion Criteria:
Exclusion Criteria:
Contact: NIA Recruiter | 410-350-3941 or 800-225-2572 ext 3941 | NIAStudiesRecruitment@mail.nih.gov |
United States, Maryland | |
NIA Clinical Research Unit located at Harbor Hospital | Recruiting |
Baltimore, Maryland, United States, 21225 | |
Contact: NIA Recruiter 410-350-3941 NIAStudiesRecruitment@mail.nih.gov |
Principal Investigator: | Dan L. Longo, MD | NIA, NIH |
Responsible Party: | National Institute on Aging ( Dan L. Longo MD, Principal Investigator ) |
Study ID Numbers: | AG0015 |
Study First Received: | February 24, 2005 |
Last Updated: | August 19, 2008 |
ClinicalTrials.gov Identifier: | NCT00104325 History of Changes |
Health Authority: | United States: Federal Government |
Cytapheresis White Cell Donation Volunteer Blood Donor Study |
Healthy |