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LFG recommends Abbott's RealTime HIV-1 Assay, m2000 System for viral load testing in HIV trials
Abbott Park, Illinois | Tuesday, May 12, 2009, 08:00 Hrs  [IST]

The Cross-Network Laboratory Focus Group (LFG) recommended Abbott RealTime HIV-1 Assay and Abbott m2000 System as standard protocol for viral load testing in HIV/AIDS clinical trials sponsored by the National Institutes of Health (NIH).

The recommendation applies to testing performed at adult and paediatric therapeutic HIV/AIDS clinical trial sites both in the United States and internationally, as well as the centralised network laboratories in the United States.

The Cross-Network Laboratory Focus Group comprises representatives from five of the NIH-sponsored HIV/AIDS clinical trials networks. The LFG recently issued a consensus statement, which was reviewed and approved by the leadership of the five networks, recommending the use of the Abbott RealTime HIV-1 assay and m2000 system for upcoming clinical trials in 2009 and beyond that have a primary focus on viral load measurements.

Viral load testing is a monitoring tool used to determine the amount of virus in the blood and the efficacy of anti-HIV therapy. The growing prevalence of HIV-1 subtype variant and circulating recombinant strains has made accurate viral load detection more complex and has prompted increasing numbers of clinical laboratories to adopt the Abbott RealTime HIV-1 Assay on the m2000 System. The system is one of the fastest and most sensitive viral load tests available, with the ability to detect and precisely measure group M, N and O strains of HIV-1, as well as all known non-B subtypes.

"We're pleased that the LFG has recommended the Abbott RealTime HIV viral load assay to be the standard testing system for NIH-sponsored HIV/AIDS clinical trial networks," said Stafford O'Kelly, head of Abbott's molecular diagnostics business. "We look forward to supporting the NIH-sponsored clinical trials networks in the global effort to evaluate and monitor HIV drug treatments."

Based on several published studies, current molecular or PCR based diagnostic tests vary in their ability to detect and reliably quantify variant strains of HIV-1 and have been found to under-quantify them. "The performance and precision of the Abbott RealTime HIV-1 assay for detecting variant subtypes allows physicians to confidently measure viral levels and provide optimal drug treatment," O'Kelly said.

The NIH-sponsored networks include the: AIDS Clinical Trials Group, International Maternal Pediatric Adolescent AIDS Clinical Trials Group, HIV Prevention Trials Network, HIV Vaccine Trials Network, and Microbicide Trials Network. The networks are an affiliated group of national and international medical research institutions and investigators that conduct clinical HIV/AIDS research to develop safe and effective drugs, prevention strategies and HIV vaccines.

The Abbott RealTime HIV-1 assay is among the most sensitive viral load tests available today. The test has demonstrated the ability to detect diverse group M subtypes of HIV (including all known non-B subtypes) as well as group N and O isolates.

The Abbott RealTime HIV-1 test runs on the Abbott m2000, an automated system that uses real-time polymerase chain reaction (PCR) to amplify, detect and measure minute levels of virus in blood samples as well as extremely high levels of these infectious agents.

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