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Scoring System to Optimize Pioglitazone Therapy After Stroke Based on Fracture Risk.


ABSTRACT: Background and Purpose- The insulin sensitizer, pioglitazone, reduces cardiovascular risk in patients after an ischemic stroke or transient ischemic attack but increases bone fracture risk. We conducted a secondary analysis of the IRIS trial (Insulin Resistance Intervention After Stroke) to assess the effect of pretreatment risk for fracture on the net benefits of pioglitazone therapy. Methods- IRIS was a randomized placebo-controlled trial of pioglitazone that enrolled patients with insulin resistance but without diabetes mellitus within 180 days of an ischemic stroke or transient ischemic attack. Participants were recruited at 179 international centers from February 2005 to January 2013 and followed for a median of 4.8 years. Fracture risk models were developed from patient characteristics at entry. Within fracture risk strata, we quantified the effects of pioglitazone compared with placebo by estimating the relative risks and absolute 5-year risk differences for fracture and stroke or myocardial infarction. Results- The fracture risk model included points for age, race-ethnicity, sex, body mass index, disability, and medications. The relative increment in fracture risk with pioglitazone was similar in the lower (

SUBMITTER: Viscoli CM 

PROVIDER: S-EPMC6557695 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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Background and Purpose- The insulin sensitizer, pioglitazone, reduces cardiovascular risk in patients after an ischemic stroke or transient ischemic attack but increases bone fracture risk. We conducted a secondary analysis of the IRIS trial (Insulin Resistance Intervention After Stroke) to assess the effect of pretreatment risk for fracture on the net benefits of pioglitazone therapy. Methods- IRIS was a randomized placebo-controlled trial of pioglitazone that enrolled patients with insulin res  ...[more]

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