Product code

NRX: Complement 4d (c4d) and complement receptor 1 (cr1)

FDA product code · Class II · Immunology

Key facts

Product code NRX
Device Complement 4d (c4d) and complement receptor 1 (cr1)
Device class Class II
Regulation number 866.5820
Review panel Immunology
Medical specialty Immunology
Submission type 510(k)
GMP exempt No
Implanted device No
Life-sustaining or life-supporting No
Definition The device is an indirect immunofluorescence assay utilizing monoclonal antibodies and flow cytometry in the quantitative determination of complement 4d (C4d) and complement receptor 1 (CR1) on the surface of erythrocytes from EDTA anti-coagulated whole blood. The C4d and CR1 results are used in a ratio as an aid in the diagnosis of systemic lupus erythematosus.

At a glance

  • None 510(k) clearances
  • None De Novo grants
  • None PMA approvals
  • None HDE approvals
  • None UDI devices (GUDID)
  • None MAUDE adverse event reports
  • None Recalled products (Z-numbers)

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Source: U.S. Food and Drug Administration (FDA), Product Classification database

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