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U.S. Department of Health and Human Services

Premarket Approval (PMA)

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Note: this medical device record is a supplement. The device description may have changed. Be sure to look at the original PMA to get an up-to-date view of this device.
Classification Namemycobacterium tuberculosis, cell mediated immune response, enzyme-linked immunospot test
PMA NumberP070006
Supplement NumberS001
Date Received02/27/2009
Decision Date07/09/2010
Product Code
OJN[ Registered Establishments with OJN ]
Advisory Committee Microbiology
Supplement Typenormal 180 day track
Supplement Reason change design/components/specifications - component
Expedited Review Granted? No
Combination Product No
Approval Order Statement 
Approval for the use of t-cell xtend reagent with the t-spot. Tb test, in order to extend the time from sample collection to sample processing from within 8 hours of venipuncture to between 23 and 30 hours post venipuncture; and to make a technical correction to the t-spot. Tb test package insert to change the number of blood collection tubes required from (2) 6 ml heparin tubes to (1) 6 ml heparin tube. The t-cell xtend reagent is indicated for use with the t-spot. Tb test for the pre-treatment of whole blood prior to lymphocyte separation. The reagent aids in the removal of selected white blood cells from whole blood stored at room temperature (18-25 degrees c).