Journal
AMERICAN JOURNAL OF NEPHROLOGY
Volume 38, Issue 5, Pages 420-429Publisher
KARGER
DOI: 10.1159/000356092
Keywords
Antihypertensive agents; Comorbidity; Drug prescriptions; Kidney transplantation; Glomerular filtration rate; Pharmacy claims; Process assessment; Registries; Statins
Categories
Funding
- Pfizer
- Velcods
- Alexion
- Genentech
- Amgen
- Abbott
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Background: Limited data exist on medication use aside from immunosuppression among large samples of kidney transplant recipients. Methods: We examined a novel database wherein Organ Procurement and Transplantation Network (OPTN) registry data were linked to records from a US pharmaceutical claims clearinghouse (2005-2010 claims) to examine pharmaceutical care at the first transplant anniversary (n = 16,157). We quantified the use of the following medication types within 60 days of the first-year OPTN report according to estimated glomerular filtration rate (eGFR): antihypertensives, lipid-lowering, bone and mineral, and anemia treatments. Adjusted associations of medication use with eGFR and other clinical factors were quantified by multivariate logistic regression. Results: Requirements for multiple antihypertensive agents rose with lower eGFR, with beta-blockers comprising the most commonly used antihypertensive agent. The adjusted likelihood of vitamin D (adjusted odds ratio (aOR) 2.07,95% CI 1.19-3.59) and especially erythrocyte-stimulating agents (aOR 19.94, 95% CI 7.01-56.00) rose in a graded manner to peak with eGFR <15 versus >90, whereas statin use was most common with eGFR 30-59 ml/ min/1.73 m(2). Black race was independently associated with increased use of all classes of antihypertensives and vitamin D, but lower adjusted statin use. Rapamycin-based immunosuppression was associated with increased use of statins and erythrocyte-stinn ulating agents. Conclusions: Integrated registry and pharmacy fill data provide a novel tool for pharmacoepidemiologic investigations of delivered post-transplant care. Transplant recipients with reduced renal function have increased requirements for pharmaceutical care of comorbidities. Causes of racial variation in medication fills warrant further investigation. (C) 2013 S. Karger AG, Basel
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