FDA Device

Warfarin Metabolism Nucleic Acid Test Cartridge; Part Number: 20-006-002; an in vitro diagnostic drug metabolizing enzyme genotyping system; Nanosphere, Inc., 4088 Commercial Ave., Northbrook, IL 60062

Hazard

Aberrant Results: A warfarin 2C9*2 mutant capture signal was found to be high enough to result in an aberrant result (i.e., wild-type called heterozygous).

What You Should Do

Remedy

Nanosphere sent Urgent Device Recall letters dated 2/25/08 to the direct accounts on the same date, informing them of the potential for aberrant results with the use of the affected lots of cartridges. The accounts were requested to examine their stocks for the affected lots of cartridges, segregate those found and return them to Nanosphere for replacement. Any questions can be directed to Dr. Gregg Shipp at 847-400-9115.

Products

Warfarin Metabolism Nucleic Acid Test Cartridge; Part Number: 20-006-002; an in vitro diagnostic drug metabolizing enzyme genotyping system; Nanosphere, Inc., 4088 Commercial Ave., Northbrook, IL 6006
Brand
Nanosphere, Inc.
UPC
Lot Numbers 121907002B, 010708002A, 012108002A, 012108002C, 012208002C, 012408002B, 012808002A, and 020608002A

Units Affected

624 units