ReFocus I

HIV Drug Resistance

ReFocus I ™ is a distinctive genotyping assay that is uniquely designed to provide accurate and rapid diagnostic information relevant to the management of HIV drug resistance and / or virologic failure on antiretroviral therapy (ART). The HIVDR RTI assay detects actionable drug resistance mutations (DRMs) in the reverse transcriptase gene of the HIV-1 genome which affect susceptibility to the NNRTI and/or NRTI ARV drug classes.

The ReFocus I assay is an in vitro semi-quantitative (RT)-PCR (qPCR) assay for the amplification and detection of the common DRMs K65R, K103N, V106M, Y181C, M184V/I and G190A, in viral RNA samples extracted from plasma of HIV-infected individuals with viral loads ranging from 2,000 to 750,000 copies / mL.


  • Rapid and ultrasensitive detection of drug-resistant HIV variants
  •  Facilitates improved access to drug resistance testing in resource-limited countries

Additional information

Kit Size

96 reactions [30 µL]






User guides and protocols