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The UK’s National Institute for Health and Care Excellence (NICE) has said there is not enough evidence to recommend 3 new blood tests for routine use in the National Health Service.
The tests are designed to identify bacteria and fungi in the bloodstream more rapidly than current tests.
According to NICE, there is too much uncertainty regarding the accuracy of the new tests and the size of benefit they might confer for patients with suspected sepsis.
The tests in question are LightCycler SeptiFast Test MGRADE (Roche Diagnostics), SepsiTest (Molzym Molecular Diagnostics), and IRIDICA BAC BSI assay (Abbott Diagnostics).
They are used to analyze whole blood samples for bacterial and fungal DNA, which may identify pathogens earlier than microbiology techniques. Microbiology techniques require blood samples to be incubated and cultured before pathogens can be identified.
The new tests are designed to enable earlier targeted treatment for patients with sepsis and reduce the use of broad-spectrum antimicrobials, which could help reduce future antimicrobial resistance.
“Rapid molecular tests that can identify which pathogens are the cause of an infection in hours rather than the days typically needed for traditional microbiology tests could ensure the right antibiotics are used much earlier in treatment,” said Carole Longson, NICE Health Technology Evaluation Centre Director.
“This, in turn, could improve outcomes for patients with suspected sepsis as well as help to reduce the spread of resistant microbes. However, the committee [advising NICE] concluded that the tests may offer clinical benefit, but there is too much uncertainty in the size of the benefit to determine the effect of introducing the tests into clinical practice.”
“The committee also concluded that, although the rapid molecular tests might provide results more quickly, there was too much uncertainty in the accuracy of the tests for clinicians to be able to base a decision on whether to withdraw or continue antibiotics. The committee therefore decided that further research should be encouraged to determine the clinical scenarios in which the tests may offer most benefit.”
NICE’s draft diagnostics guidance on the LightCycler SeptiFast Test MGRADE, SepsiTest, and IRIDICA BAC BSI assay is available on the NICE website. The closing date for comments on this draft guidance is October 21, 2015. 
Photo by William Weinert
The UK’s National Institute for Health and Care Excellence (NICE) has said there is not enough evidence to recommend 3 new blood tests for routine use in the National Health Service.
The tests are designed to identify bacteria and fungi in the bloodstream more rapidly than current tests.
According to NICE, there is too much uncertainty regarding the accuracy of the new tests and the size of benefit they might confer for patients with suspected sepsis.
The tests in question are LightCycler SeptiFast Test MGRADE (Roche Diagnostics), SepsiTest (Molzym Molecular Diagnostics), and IRIDICA BAC BSI assay (Abbott Diagnostics).
They are used to analyze whole blood samples for bacterial and fungal DNA, which may identify pathogens earlier than microbiology techniques. Microbiology techniques require blood samples to be incubated and cultured before pathogens can be identified.
The new tests are designed to enable earlier targeted treatment for patients with sepsis and reduce the use of broad-spectrum antimicrobials, which could help reduce future antimicrobial resistance.
“Rapid molecular tests that can identify which pathogens are the cause of an infection in hours rather than the days typically needed for traditional microbiology tests could ensure the right antibiotics are used much earlier in treatment,” said Carole Longson, NICE Health Technology Evaluation Centre Director.
“This, in turn, could improve outcomes for patients with suspected sepsis as well as help to reduce the spread of resistant microbes. However, the committee [advising NICE] concluded that the tests may offer clinical benefit, but there is too much uncertainty in the size of the benefit to determine the effect of introducing the tests into clinical practice.”
“The committee also concluded that, although the rapid molecular tests might provide results more quickly, there was too much uncertainty in the accuracy of the tests for clinicians to be able to base a decision on whether to withdraw or continue antibiotics. The committee therefore decided that further research should be encouraged to determine the clinical scenarios in which the tests may offer most benefit.”
NICE’s draft diagnostics guidance on the LightCycler SeptiFast Test MGRADE, SepsiTest, and IRIDICA BAC BSI assay is available on the NICE website. The closing date for comments on this draft guidance is October 21, 2015.
Photo by William Weinert
The UK’s National Institute for Health and Care Excellence (NICE) has said there is not enough evidence to recommend 3 new blood tests for routine use in the National Health Service.
The tests are designed to identify bacteria and fungi in the bloodstream more rapidly than current tests.
According to NICE, there is too much uncertainty regarding the accuracy of the new tests and the size of benefit they might confer for patients with suspected sepsis.
The tests in question are LightCycler SeptiFast Test MGRADE (Roche Diagnostics), SepsiTest (Molzym Molecular Diagnostics), and IRIDICA BAC BSI assay (Abbott Diagnostics).
They are used to analyze whole blood samples for bacterial and fungal DNA, which may identify pathogens earlier than microbiology techniques. Microbiology techniques require blood samples to be incubated and cultured before pathogens can be identified.
The new tests are designed to enable earlier targeted treatment for patients with sepsis and reduce the use of broad-spectrum antimicrobials, which could help reduce future antimicrobial resistance.
“Rapid molecular tests that can identify which pathogens are the cause of an infection in hours rather than the days typically needed for traditional microbiology tests could ensure the right antibiotics are used much earlier in treatment,” said Carole Longson, NICE Health Technology Evaluation Centre Director.
“This, in turn, could improve outcomes for patients with suspected sepsis as well as help to reduce the spread of resistant microbes. However, the committee [advising NICE] concluded that the tests may offer clinical benefit, but there is too much uncertainty in the size of the benefit to determine the effect of introducing the tests into clinical practice.”
“The committee also concluded that, although the rapid molecular tests might provide results more quickly, there was too much uncertainty in the accuracy of the tests for clinicians to be able to base a decision on whether to withdraw or continue antibiotics. The committee therefore decided that further research should be encouraged to determine the clinical scenarios in which the tests may offer most benefit.”
NICE’s draft diagnostics guidance on the LightCycler SeptiFast Test MGRADE, SepsiTest, and IRIDICA BAC BSI assay is available on the NICE website. The closing date for comments on this draft guidance is October 21, 2015.