The new claim follows the screening recommendations made at the December 1, 2017 meeting of the Blood Products Advisory Committee (BPAC), an appointed group of key medical & scientific advisors to the FDA. In addition to supporting the most recent BPAC recommendations, the extended claims for cobas® Zika facilitate a simplified testing workflow for blood screening laboratories utilizing the cobas® 6800/8800 Systems with the cobas® Synergy software solution in the United States.
“More than 6 million blood donations from the United States and Puerto Rico have been screened with the cobas® Zika test since its initial release under the Investigational New Drug Application (IND) protocol in 2016 and subsequent commercial approval in 2017,” said Uwe Oberlaender, Head of Roche Molecular Diagnostics. “Roche is pleased to offer additional screening options that support BPAC recommendations for the US market.”
Roche deployed the cobas® Zika test in April of 2016 under the FDA’s IND Protocol to screen blood donations collected in Puerto Rico. This initial testing protocol enabled the reinstatement of the blood services in Puerto Rico after concerns over the high rates of infection locally posed a significant threat to the blood supply. The cobas® Zika test received commercial approval from the FDA in October of 2017, enabling routine use of the cobas® Zika test to support individual donor screening efforts throughout Puerto Rico the continental United States.
About the cobas Zika test
Manufactured by Roche, the cobas Zika test for use with the cobas® 6800/8800 Systems and cobas® Synergy software, is a qualitative in vitro nucleic acid screening test for the direct detection of Zika virus RNA in plasma specimens from individual human blood donors. The cobas® Zika test is the newest addition to the testing menu for the cobas® 6800/8800 Systems in the US market. These fully-automated, high-volume systems perform automated sample pooling, automated sample preparation (nucleic acid extraction and purification), followed by PCR amplification and detection. Automated data management is performed by the cobas® 6800/8800 software, which assigns a test result for each test as non-reactive, reactive, or invalid. Together with the cobas® 6800/8800 Systems, the cobas® Zika test provides solutions for blood services to detect Zika virus and ensure that potentially infected blood units are not made available for transfusion.
About the Zika Virus
The Zika virus belongs to the Flaviviridae family of viruses, which includes dengue, yellow fever, Japanese encephalitis and West Nile viruses. Zika is primarily spread by the bite of infected mosquitoes; however, transmission through sexual intercourse and from pregnant mothers to fetuses has also been documented.1
A growing body of evidence confirms the links between Zika virus infection and defects in fetuses and newborns, as well as neurological complications in children and adults.2 Similar to other viruses in the Flaviviridae family, such as West Nile Virus, it is suspected that infected donor blood used for transfusions could serve as an additional transmission route for Zika virus.3
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1 World Health Organization (WHO). Zika Virus Fact Sheet, http://www.who.int/mediacentre/factsheets/zika[Last accessed: September 2017].
2 Rasmussen S.A., Jamieson, D.J., Honein, M.A., Petersen, L.R. Zika Virus and Birth Defects – Reviewing the Evidence for Causality. New England Journal of Medicine 2016;374:1981-7.
3 Motta I.J., Spencer B.R., Cordeiro da Silva S.G., et al. Evidence for transmission of Zika virus by platelet transfusion. New England Journal of Medicine 2016;375:1101-3.