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  • Title: Design and methods of the Pro-B Type Natriuretic Peptide Outpatient Tailored Chronic Heart Failure Therapy (PROTECT) Study.
    Author: Bhardwaj A, Rehman SU, Mohammed A, Baggish AL, Moore SA, Januzzi JL.
    Journal: Am Heart J; 2010 Apr; 159(4):532-538.e1. PubMed ID: 20362709.
    Abstract:
    BACKGROUND: Serial measurements of N-terminal pro-B type natriuretic peptide (NT-proBNP) provide prognostic information in patients with chronic heart failure (HF). Changes in NT-proBNP concentrations parallel prognosis; however, it remains unclear whether HF care with a goal to maximize medical therapy and also lower NT-proBNP concentrations is superior to standard HF care alone. AIMS: The aim of the study was to evaluate the hypothesis that an HF strategy guided by NT-proBNP reduces cardiovascular events compared to standard of care HF management. METHODS: In a prospective randomized single-center trial, subjects with New York Heart Association class II to IV systolic HF (left ventricular ejection fraction < or =40%) will be enrolled. Both groups will receive standard HF management (with a goal for minimizing HF symptoms and achieving maximal dosages of therapies with proven mortality benefit in HF), whereas one group ("NT-proBNP") will also have treatment adjustments to reduce NT-proBNP concentrations < or =1,000 pg/mL. The primary end point of the trial is total cardiovascular events for a 1-year period; secondary end points will include effects of NT-proBNP-guided care on cardiac structure and function, quality of life, and total costs of care. RESULTS: Enrollment began in 2006; of the original 300 planned, thus far, 151 subjects have been randomized. Interim analysis in November 2009 indicated significant reduction of events in the NT-proBNP arm. Full results are expected in 2010. CONCLUSIONS: The Pro-B Type Natriuretic Peptide Outpatient Tailored Chronic Heart Failure Therapy (PROTECT) Study will test the hypothesis that therapy guided by NT-proBNP concentrations will be superior to standard of care HF management (www.clinicaltrials.gov identifier NCT00351390).
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