Petr Jarolim1,2, William B White3, Christopher P Cannon4,5, Qi Gao5, David A Morrow2,4. 1. Department of Pathology, Brigham and Women's Hospital, Boston, MA pjarolim@bwh.harvard.edu. 2. Harvard Medical School, Boston, MA. 3. Calhoun Cardiology Center, University of Connecticut School of Medicine, Farmington, CT. 4. Division of Cardiology and the TIMI Study Group, Brigham and Women's Hospital, Boston, MA. 5. Baim Institute for Clinical Research, Boston, MA.
Abstract
OBJECTIVE:Patients with type 2 diabetes are at increased risk of developing heart failure (HF). Enhanced recognition of patients at risk for HF would help guide therapeutic decisions. RESEARCH DESIGN AND METHODS: We investigated the prognostic implications of changes in N-terminal B-type natriuretic peptide (NT-proBNP) concentration in patients with type 2 diabetes and ischemic heart disease who were enrolled in the Examination of Cardiovascular Outcomes with Alogliptin versus Standard of Care (EXAMINE) trial, a phase 3b trial of alogliptin, a dipeptidyl peptidase 4 (DPP-4) inhibitor. Patients with type 2 diabetes and a recent acute coronary syndrome event were eligible. NT-proBNP was measured at baseline and 6 months. Cardiovascular (CV) death or hospitalization for HF was the end point of principal interest for this analysis. RESULTS: We observed a strong graded relationship between increasing baseline and 6-month NT-proBNP concentration and the incidence of major CV events (P < 0.001). After adjusting for potential confounders, NT-proBNP at baseline was independently associated with the development of major CV events, in particular hospitalization for HF. Patients who had persistently high NT-proBNP (P < 0.001) or developed high NT-proBNP at 6 months (P < 0.001) were at a significantly higher risk for CV death/HF than those in whom NT-proBNP remained low at both time points or who had a high NT-proBNP value at baseline that subsequently declined to the low category. Absolute changes in NT-proBNP by 6 months were also strongly associated with subsequent outcomes. Treatment with a DPP-4 inhibitor did not meaningfully alter NT-proBNP concentrations (P = 0.20). CONCLUSIONS: Serial monitoring of NT-proBNP in patients with type 2 diabetes and ischemic heart disease may be useful for identifying patients at highest risk for HF.
RCT Entities:
OBJECTIVE:Patients with type 2 diabetes are at increased risk of developing heart failure (HF). Enhanced recognition of patients at risk for HF would help guide therapeutic decisions. RESEARCH DESIGN AND METHODS: We investigated the prognostic implications of changes in N-terminal B-type natriuretic peptide (NT-proBNP) concentration in patients with type 2 diabetes and ischemic heart disease who were enrolled in the Examination of Cardiovascular Outcomes with Alogliptin versus Standard of Care (EXAMINE) trial, a phase 3b trial of alogliptin, a dipeptidyl peptidase 4 (DPP-4) inhibitor. Patients with type 2 diabetes and a recent acute coronary syndrome event were eligible. NT-proBNP was measured at baseline and 6 months. Cardiovascular (CV) death or hospitalization for HF was the end point of principal interest for this analysis. RESULTS: We observed a strong graded relationship between increasing baseline and 6-month NT-proBNP concentration and the incidence of major CV events (P < 0.001). After adjusting for potential confounders, NT-proBNP at baseline was independently associated with the development of major CV events, in particular hospitalization for HF. Patients who had persistently high NT-proBNP (P < 0.001) or developed high NT-proBNP at 6 months (P < 0.001) were at a significantly higher risk for CV death/HF than those in whom NT-proBNP remained low at both time points or who had a high NT-proBNP value at baseline that subsequently declined to the low category. Absolute changes in NT-proBNP by 6 months were also strongly associated with subsequent outcomes. Treatment with a DPP-4 inhibitor did not meaningfully alter NT-proBNP concentrations (P = 0.20). CONCLUSIONS: Serial monitoring of NT-proBNP in patients with type 2 diabetes and ischemic heart disease may be useful for identifying patients at highest risk for HF.
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