PMID- 17675057 OWN - NLM STAT- MEDLINE DCOM- 20070925 LR - 20220330 IS - 1532-8414 (Electronic) IS - 1071-9164 (Linking) VI - 13 IP - 6 DP - 2007 Aug TI - Baseline and serial neurohormones in patients with congestive heart failure treated with and without bucindolol: results of the neurohumoral substudy of the Beta-Blocker Evaluation of Survival Study (BEST). PG - 437-44 AB - BACKGROUND: Serial neurohormones may serve as markers of efficacy of congestive heart failure (CHF) therapy. We measured serial plasma big-endothelin (Big-ET), ET-1, N-terminal atrial natriuretic peptide, and brain natriuretic peptide (BNP) in 206 patients randomized to bucindolol or placebo in Beta-Blocker Evaluation of Survival Trial (BEST). METHODS AND RESULTS: Neurohormones were measured at baseline and 3 and 12 months. At baseline, BNP and Big-ET levels were greater in New York Heart Association (NYHA) Class IV than in Class III patients (median 122 pg/mL versus 447 pg/mL, P = .001; and 20.0 pg/mL versus 9.9 pg/mL, P = .003), and in patients with left ventricular ejection fraction (LVEF) < or = 20% compared with LVEF > 20% (median 211 pg/mL versus 99.1 pg/mL; and 12.9 pg/mL versus 8.0 pg/mL, both P = .003). Big-ET and BNP were the strongest predictors of the composite end point of CHF hospitalization or death. LVEF at 12 months correlated inversely with 12-month BNP levels (r = -0.41, P = .0001). Bucindolol had no effect on neurohormones except that bucindolol treated patients had lower Big-ET levels at 3 months than patients receiving placebo (median 9.1 pg/mL versus 10.9 pg/mL, P = .05). A decline in ET-1 was associated with increased risk of the composite endpoint. CONCLUSIONS: Lack of effect of bucindolol on natriuretic peptide levels appears consistent with its overall lack of efficacy in BEST. FAU - Frantz, Robert P AU - Frantz RP AD - Division of Cardiovascular Diseases, Mayo Clinic College of Medicine and Mayo Foundation, Rochester, Minnesota 55905, USA. FAU - Lowes, Brian D AU - Lowes BD FAU - Grayburn, Paul A AU - Grayburn PA FAU - White, Michel AU - White M FAU - Krause-Steinrauf, Heidi AU - Krause-Steinrauf H FAU - Krishnan, Vaishali AU - Krishnan V FAU - Uyeda, Lauren AU - Uyeda L FAU - Burnett, John C AU - Burnett JC CN - BEST Neurohumoral Substudy Investigators LA - eng PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - J Card Fail JT - Journal of cardiac failure JID - 9442138 RN - 0 (Adrenergic beta-Antagonists) RN - 0 (Biomarkers) RN - 0 (Endothelin-1) RN - 0 (Endothelins) RN - 0 (Propanolamines) RN - 0 (big-endothelin (1-22)) RN - 114471-18-0 (Natriuretic Peptide, Brain) RN - 85637-73-6 (Atrial Natriuretic Factor) RN - E9UO06K7CE (bucindolol) SB - IM MH - Adrenergic beta-Antagonists/*therapeutic use MH - Aged MH - Atrial Natriuretic Factor/*blood MH - Biomarkers/blood MH - Endothelin-1/*blood MH - Endothelins/*blood MH - Female MH - Follow-Up Studies MH - Heart Failure/blood/*drug therapy/mortality MH - Humans MH - Male MH - Middle Aged MH - Natriuretic Peptide, Brain/*blood MH - Propanolamines/*therapeutic use MH - Radioimmunoassay MH - Stroke Volume MH - Survival Rate MH - Treatment Outcome EDAT- 2007/08/07 09:00 MHDA- 2007/09/26 09:00 CRDT- 2007/08/07 09:00 PHST- 2006/09/29 00:00 [received] PHST- 2007/03/06 00:00 [revised] PHST- 2007/03/16 00:00 [accepted] PHST- 2007/08/07 09:00 [pubmed] PHST- 2007/09/26 09:00 [medline] PHST- 2007/08/07 09:00 [entrez] AID - S1071-9164(07)00098-X [pii] AID - 10.1016/j.cardfail.2007.03.007 [doi] PST - ppublish SO - J Card Fail. 2007 Aug;13(6):437-44. doi: 10.1016/j.cardfail.2007.03.007.