The processes for granting priority review status to new drug submissions in Canada and the United
States are not exactly the same, but reasonable concordance should be expected since the selection
criteria are similar in the two countries. This study compared new therapeutic drugs approved by both
Health Canada and the Food and Drug Administration (FDA) between 2000 and 2014 to evaluate
concordance on priority review status. New therapeutic drugs approved in both countries totalled 301;
86 (28.6%) and 136 (45.2%) were given priority review status in Canada and the United States, respectively, with 73 (24.3%) in both. Sensitivity and specificity were 53.7% and 92.1%. Overall concordance on
review type was 74.8%.kwas 0.47 indicating moderate agreement. Agreement on review type was>70%
for all drugs, except oncology therapies. Broad agreement exists between Health Canada and the FDA on
drugs that should not have priority review status. Concordance on drugs that should have this status was
generally satisfactory and, for critical drugs, was high. Agreement would improve if more oncology drugs
received priority review status in Canada. Despite a higher number of drugs receiving priority review
status in the United States, there is reasonable concordance between the two countries.
©
The processes for granting priority review status to new drug submissions in Canada and the UnitedStates are not exactly the same, but reasonable concordance should be expected since the selectioncriteria are similar in the two countries. This study compared new therapeutic drugs approved by bothHealth Canada and the Food and Drug Administration (FDA) between 2000 and 2014 to evaluateconcordance on priority review status. New therapeutic drugs approved in both countries totalled 301;86 (28.6%) and 136 (45.2%) were given priority review status in Canada and the United States, respectively, with 73 (24.3%) in both. Sensitivity and specificity were 53.7% and 92.1%. Overall concordance onreview type was 74.8%.kwas 0.47 indicating moderate agreement. Agreement on review type was>70%for all drugs, except oncology therapies. Broad agreement exists between Health Canada and the FDA ondrugs that should not have priority review status. Concordance on drugs that should have this status wasgenerally satisfactory and, for critical drugs, was high. Agreement would improve if more oncology drugsreceived priority review status in Canada. Despite a higher number of drugs receiving priority reviewstatus in the United States, there is reasonable concordance between the two countries.©
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