cobas® 4800 CT/NG Test

Product image for cobas® 4800 CT/NG Test

The simple path to accuracy

CT and NG multiplex assay with flexible order capability

A qualitative multiplex assay that simultaneously detects two CT independent DNA targets – one in the cryptic plasmid and the other on the CT genome. 

DR-9, a direct repeat region and target of the NG assay, makes it highly specific to the NG species. No cross reactivity with commensal Neisseria or other bacterial species has been observed with the NG assay.

Features and benefits

Easy to learn, easy to use

  • Reduces labor costs and training time
  • Intuitive software walks the user through the entire set up process
  • Bi-directional LIS connection protects results integrity and reduces repetitive tasks


Reliable results

  • Automated result algorithm provides clear positive, negative or invalid results


Quality control in every step

  • An internal control utilising an identical randomised internal target sequence is added to each sample and used throughout the entire process, from sample preparation to amplification and detection
  • The internal control minimises the risk of false negative results due to inhibition
  • The AmpErase enzyme degrades previously amplified targets, allowing sample prep and detection in the same lab

Intended use


This test is an in vitro nucleic acid amplification test for the qualitative detection of Chlamydia trachomatis (CT) and/or Neisseria gonorrhoeae (NG) in patient specimens.* The test utilises amplification of target DNA by the Polymerase Chain Reaction (PCR) and nucleic acid hybridization for the detection of Chlamydia trachomatis and Neisseria gonorrhoeae. This test is intended to be used as a diagnostic as well as a screening tool.

*For a list of approved specimen types, please contact your local Roche representative.

Registration status

Canada-IVD, CE-IVD, Japan-IVD, US-IVD

Package inserts

Access package inserts through your country’s Roche Diagnostics Website.

cobas® 4800 System image

Related systems

cobas® 4800 System

Highly efficient, flexible workflows and a consolidated assay menu deliver confidence with every result. Automated PCR setup and analysis help make the most of your resources and reduce error.