FDA Approves New Tests to Screen Blood for HIV and HCV

Publication
Article
Oncology NEWS InternationalOncology NEWS International Vol 10 No 11
Volume 10
Issue 11

ROCKVILLE, Maryland-New screening systems expected to further lower the threat of HIV and hepatitis C virus (HCV) contamination in the nation’s blood supply have received FDA approval. The agency has licensed two nucleic acid test (NAT) systems, which can significantly reduce the infection window, ie, the time in which a blood donor can be infected but the infection may not be detected. For HIV, the window with NAT is 12 days, compared with 22 days for antibody tests and 16 days for antigen tests. For HCV, the window is reduced from 82 days to 25 days.

ROCKVILLE, Maryland—New screening systems expected to further lower the threat of HIV and hepatitis C virus (HCV) contamination in the nation’s blood supply have received FDA approval. The agency has licensed two nucleic acid test (NAT) systems, which can significantly reduce the infection window, ie, the time in which a blood donor can be infected but the infection may not be detected. For HIV, the window with NAT is 12 days, compared with 22 days for antibody tests and 16 days for antigen tests. For HCV, the window is reduced from 82 days to 25 days.

The NAT systems were developed by the National Genetics Institute (NGI) for screening plasma used in manufacturing products such as clotting factors and immune globulins, and by Alpha Therapeutic Corp., for use in its plasma collection centers.

NAT enables the detection of minute amounts of DNA or RNA by amplifying a gene fragment. The newly approved tests are extremely sensitive for the RNA of HIV-1, the dominant AIDS-virus variant in the United States, and HCV.

Approval of the tests was based on clinical trials involving test pools of 512 plasma samples. These samples represented a total of 342,729 donations from about 48,000 individuals, which were collected at 33 plasmapheresis centers.

Recent Videos
Ronald Bleday, MD, stated that before standardizing a stepwise approach to treating surgical pain, providers might have overtreated patients with opioids.
1 expert is featured in this series.
2 experts are featured in this series.
2 experts are featured in this series.
A third of patients had a response [to lifileucel], and of the patients who have a response, half of them were alive at the 4-year follow-up.
1 expert is featured in this series.
Conducting trials safely within a community setting lies at the heart of a successful collaboration between Northwell Health and START.
We are seeing that, in those patients who have relapsed/refractory melanoma with survival measured as a few weeks and no effective treatments, about a third of these patients will have a response.
We have the current CAR [T-cell therapies], which target CD19; however, we need others.
Related Content