# K050465: Immunalysis Cocaine Elisa for Hair

- Pathway: 510(k) (Traditional)
- Applicant: Immunalysis Corporation
- Decided: Aug 4, 2005 after 154 days
- Product code: DIO (Enzyme Immunoassay, Cocaine And Cocaine Metabolites)
- Device class: 2
- Regulation: 21 CFR 862.3250
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Indications for use
The Immunalysis Cocaine ELISA Kit for Hair test system utilizes an Enzyme Linked Immunoassay (ELISA) for the qualitative detection of cocaine in head hair samples using a cutoff of 500 pg/mg (0.5 ng/mg) of hair for the purpose of identifying chronic cocaine use. This process has not been evaluated for use with hair specimens other than head. This in vitro diagnostic device is intended for clinical laboratory use only. The Immunalysis Cocaine ELISA Kit for Hair test system provides only a preliminary analytical test result. For confirmation of the results, presumptive positives are analyzed using a gas chromatograph - mass spectrometer operating in electron impact mode and using deuterated internal standards. Clinical and professional judgment should be applied to any drug of abuse test result, particularly when preliminary positive results are obtained.

Source page: https://510kreport.com/device/K050465
Methodology: https://510kreport.com/methodology