Multiplex HIV-1/HIV-2/Syphilis Antibody Test

CE Mark Certification in the European Union*

*and other countries that accept CE mark certification.

One sample, one minute, two results.

HIV and syphilis co-infection is a concerning issue that affects us globally. Developed on the proven INSTI platform, the INSTI Multiplex assay screens for both HIV and syphilis infections simultaneously on one device in 60 seconds.

The INSTI Multiplex assay offers a powerful tool for identifying individuals who need HIV and/or syphilis treatment, preventing mother-to-child transmission, and reducing the spread of both infections worldwide.


  • Rapid: Test yields results in as little as 60 seconds
  • Flexible: Its rapid results makes it easy to include in a variety of workflow models
  • Compatible: INSTI works with most testing algorithms
  • Convenient: Stored at room temperature 15-30&degC (59-86&degF)


  • Unique immunofiltration “flow-through” design
  • Built-in IgG capture procedural control
  • Proprietary HIV antigen
  • Measures antibody directed against T. pallidum antigens
  • Lancet, pipette and alcohol swab included
  • No timers required
  • Spill-free membrane


Sample Type Sensitivity Specificity
Venous Whole Blood† 99.4% 99.7%
Plasma† 99.5% 99.96%
Fingerstick Blood† 99.6% 99.3%
Serum† 99.0% 100%
Syphilis* 100% 100%
References and Footnotes
* Secondary Syphilis
† for HIV-1, HIV-2


IgM 2015 IAS Conference Poster

IAS 2015_IgM Poster

INSTI Multiplex Product Specification Sheet

Insti Multiplex Specifications

Results from INSTI’s Canadian Clinical Studies

Canadian Clinical Studies Results

Results from INSTI’S US Clinical Studies

US Clinical Studies Results

CLIA Poster from 2012 AIDS Conference

AIDS 2012_CLIA Poster

INSTI Multiplex Information Sheet

INSTI Multiplex Information Sheet

Number Description
90-1028 INSTI® HIV-1/HIV-2/Syphilis Multiplex Test: Single Test with Support Materials
90-1032 INSTI® HIV-1/HIV-2/Syphilis Controls
90-1036 INSTI® HIV-1/HIV-2/HIV Negative Controls

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