Health Services Research & Development

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Hull LE, Chanfreau-Coffinier C, Tuteja S, Berlowitz D, Lehmann LS, Oslin DW, Pyne JM, DuVall SL, Lynch JA. Early adoption of pharmacogenetic testing for veterans prescribed psychotropic medications. Pharmacogenomics. 2019 Aug 8.
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Abstract: Describe the characteristics of providers ordering, patients receiving, and clinical impact of a psychotropic pharmacogenetic test on veteran care. Observational cohort study linking veterans' laboratory results to electronic health record data. Changes in psychotropic medication prescribing were measured as a function of test results.  A total of 38 providers tested 181 veterans between 10/6/2014 and 2/1/2018. Prescriptions for medications with severe gene-drug interactions decreased; however, 11 such medications were used after testing. For 43 patients, documentation of the results was missing. Most prescribing decisions were congruent with test results, but in a nontrivial number of cases, prescribers appeared not to act on the results. Poor result documentation impeded the potential of results to inform clinical care.