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Abstract
In a subgroup of TOPCAT participants assigned to spironolactone, the spironolactone metabolite canrenone was measured to assess adherence. Canrenone levels were undetectable in 30% of participants from Russia, as compared with only 3% from the United States and Canada.
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1 Montreal Heart Institute, Montreal, QC, Canada
2 Brigham and Women’s Hospital, Boston, MA
3 Université de Montréal, Montreal, QC, Canada
4 University of Michigan School of Medicine, Ann Arbor, MI