Dear Editor,

In the publication of our proof of concept study [1], we incorrectly described the point of care test Simtomax® as measuring both total IgA and IgA tTG antibodies. The test detects total IgA, recommended by NICE, and both IgA and IgG antibodies against deamidated gliadin peptides, ensuring those with IgA deficiency are identified, reducing the risk of false negative results. The revised NICE guideline for coeliac disease acknowledges the rising evidence of point of care tests and as a result removed the statement ‘do not use point of care tests’ from their previous guidance [2].