Viper LT™ System & Onclarity™ HPV Assay

Medical Devices · Molecular Diagnostics · HPV Genotyping · FDA PMA Approved

Viper LT™ System & Onclarity™ HPV Assay

The Viper LT™ is a benchtop molecular platform that automates DNA extraction, RT-PCR amplification, detection and result reporting — minimising manual intervention. Paired with the Onclarity™ HPV Assay, it delivers genotyping results for 14 high-risk HPV types, with individual identification of 6 types, from the same SurePath™ vial used for liquid-based cytology — one sample, two tests.

  • One SurePath™ vial yields both LBC and HPV genotyping results
  • Detects 14 high-risk HPV genotypes in a single assay
  • Individual results for HPV 16, 18, 31, 45, 51, 52
  • Targets E6/E7 oncogenes — highest clinical sensitivity
  • FDA PMA approved — largest clinical trial in FDA history (8,900 subjects, 3-year follow-up)
  • "Load and walk away" automation — no operator attendance required

Onclarity™ HPV Assay — Extended Genotyping

Onclarity™ is the only HPV assay that provides extended genotyping for all 14 high-risk types in a single test run. Primers and probes are designed to target the HPV E6/E7 oncogene region — the most clinically significant region for cancer risk assessment — significantly improving viral detection sensitivity and reducing the risk of missed detection due to nucleic acid deletions or mutations.

The assay uses 15 different probes, each labelled with one of four fluorescent dyes, preventing suppression of low-concentration targets by high-concentration targets in mixed infections. Cross-reactivity testing has confirmed no interference with multiple bacteria, fungi, viruses or low-risk HPV types. Common vaginal interfering substances (medications, lubricants, hormones, blood) do not affect results.

Viper LT™ — Fully Automated Molecular Platform

  • Automated sample tube piercing — no manual uncapping or transfer
  • Ready-to-use reagent cartridges — minimal hands-on time
  • Continuous loading — no batch scheduling required
  • Integrated DNA extraction, RT-PCR amplification and result reporting
  • Compact benchtop footprint — suitable for labs of all sizes

FDA Clinical Evidence (PMA Study)

  • Prospective screening study including healthy (non-referral) populations
  • Standardised disease confirmation protocol with colposcopy at final year
  • 3-year longitudinal follow-up of ~8,900 subjects
  • >500 million data points submitted — largest IVD clinical trial in FDA history
  • Meets all criteria of international HPV IVD clinical performance guidelines
Viper LT™ System & Onclarity™ HPV Assay
Platform Viper LT™ Automated Molecular System
Assay Onclarity™ HPV Assay (PCR fluorescence method)
Target Region HPV E6/E7 oncogenes
Detection Range 14 high-risk HPV genotypes
Individual Genotyping HPV 16, 18, 31, 45, 51, 52 (individually reported)
Group Reporting 33/58 · 35/39/68 · 56/59/66
Sample Type SurePath™ liquid-based cytology preservative fluid
Co-testing Same vial as SurePath™ LBC — no additional sample required
Automation Sample processing · DNA extraction · RT-PCR · Result reporting
Probe Design 15 probes, 4 fluorescent dye labels — minimises competitive inhibition
Interference No cross-reactivity with bacteria, fungi, viruses, low-risk HPV
Regulatory Status FDA PMA Approved · CE IVD · NMPA Registered

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