The National Institute for Health and Care Excellence has issued draft diagnostics guidance recommending against the routine use, at present, of a new allergy test by the NHS.
The institute said in draft guidance that further research was needed on the clinical effectiveness of the promising new test to help diagnose allergy.
The ImmunoCAP ISAC 112 test, used with standard clinical assessment, is designed to simultaneously identify antibodies in the blood to 51 allergens that provoke reactions.
When a person is sensitised to two or more allergens, the institute noted that the cause of allergy could be difficult to diagnose because the immune system reacts to other allergens as they are similar in shape and structure to the causal allergen.
However, the guideline advisory committee concluded that, although the ImmunoCap ISAC 112 test shows promise, more research is needed to demonstrate its clinical effectiveness in helping healthcare professionals diagnose and assess suspected allergy.