A Phase II Trial to Assess Hemodynamic Effects of Istaroxime in Pts With Worsening HF and Reduced LV Systolic Function

Summary

The purpose of this study is to determine the minimum effective dose of Istaroxime, in patients requiring hospitalization for deterioration of chronic heart failure and left ventricular systolic dysfunction. This goal will be reached by comparing the hemodynamic effect of three different doses of the drug versus placebo. Efficacy will be measured as a change in Pulmonary Capillary Wedge Pressure from pre-infusion to the last assessment at six hours intravenous infusion.Secondary objectives will be to evaluate safety, tolerability and efficacy on other main hemodynamic parameters, echocardiographic and echo-doppler measurements, plus preliminary pharmacokinetics of the drug.

Timeline

Start

2006-08

Primary completion

2007-07

Completion

2007-08

Outcome

Met primary endpoint

paper All doses of istaroxime lowered pulmonary capillary wedge pressure (PCWP), the primary end point PMID 18534276 ↗

paper compared with 0.0 +/- 3.6 mm Hg with placebo; p < 0.05 for all doses PMID 18534276 ↗

Publications

• Background Gheorghiade M, Sabbah HN. Istaroxime: an investigational luso-inotropic agent for acute heart failure syndromes. Am J Cardiol. 2007 Jan 22;99(2A):1A-3A. doi: 10.1016/j.amjcard.2006.09.001. Epub 2006 Sep 18. No abstract available.
• Background Micheletti R, Palazzo F, Barassi P, Giacalone G, Ferrandi M, Schiavone A, Moro B, Parodi O, Ferrari P, Bianchi G. Istaroxime, a stimulator of sarcoplasmic reticulum calcium adenosine triphosphatase isoform 2a activity, as a novel therapeutic approach to heart failure. Am J Cardiol. 2007 Jan 22;99(2A):24A-32A. doi: 10.1016/j.amjcard.2006.09.003. Epub 2006 Sep 25.
• Background Mattera GG, Lo Giudice P, Loi FM, Vanoli E, Gagnol JP, Borsini F, Carminati P. Istaroxime: a new luso-inotropic agent for heart failure. Am J Cardiol. 2007 Jan 22;99(2A):33A-40A. doi: 10.1016/j.amjcard.2006.09.004. Epub 2006 Sep 18.
• Background Sabbah HN, Imai M, Cowart D, Amato A, Carminati P, Gheorghiade M. Hemodynamic properties of a new-generation positive luso-inotropic agent for the acute treatment of advanced heart failure. Am J Cardiol. 2007 Jan 22;99(2A):41A-46A. doi: 10.1016/j.amjcard.2006.09.005. Epub 2006 Sep 18.
• Background Ghali JK, Smith WB, Torre-Amione G, Haynos W, Rayburn BK, Amato A, Zhang D, Cowart D, Valentini G, Carminati P, Gheorghiade M. A phase 1-2 dose-escalating study evaluating the safety and tolerability of istaroxime and specific effects on electrocardiographic and hemodynamic parameters in patients with chronic heart failure with reduced systolic function. Am J Cardiol. 2007 Jan 22;99(2A):47A-56A. doi: 10.1016/j.amjcard.2006.09.006. Epub 2006 Sep 20.
• Background Wehrens XH. Istaroxime, a novel luso-inotropic agent for the treatment of acute heart failure. Curr Opin Investig Drugs. 2007 Sep;8(9):769-77.
• Background Adamson PB, Vanoli E, Mattera GG, Germany R, Gagnol JP, Carminati P, Schwartz PJ. Hemodynamic effects of a new inotropic compound, PST-2744, in dogs with chronic ischemic heart failure. J Cardiovasc Pharmacol. 2003 Aug;42(2):169-73. doi: 10.1097/00005344-200308000-00003.
• Background Ferrari P, Micheletti R, Valentini G, Bianchi G. Targeting SERCA2a as an innovative approach to the therapy of congestive heart failure. Med Hypotheses. 2007;68(5):1120-5. doi: 10.1016/j.mehy.2006.08.045. Epub 2006 Nov 17.
• Shah SJ, Blair JE, Filippatos GS, Macarie C, Ruzyllo W, Korewicki J, Bubenek-Turconi SI, Ceracchi M, Bianchetti M, Carminati P, Kremastinos D, Grzybowski J, Valentini G, Sabbah HN, Gheorghiade M; HORIZON-HF Investigators. Effects of istaroxime on diastolic stiffness in acute heart failure syndromes: results from the Hemodynamic, Echocardiographic, and Neurohormonal Effects of Istaroxime, a Novel Intravenous Inotropic and Lusitropic Agent: a Randomized Controlled Trial in Patients Hospitalized with Heart Failure (HORIZON-HF) trial. Am Heart J. 2009 Jun;157(6):1035-41. doi: 10.1016/j.ahj.2009.03.007. Epub 2009 Apr 23.
• Gheorghiade M, Blair JE, Filippatos GS, Macarie C, Ruzyllo W, Korewicki J, Bubenek-Turconi SI, Ceracchi M, Bianchetti M, Carminati P, Kremastinos D, Valentini G, Sabbah HN; HORIZON-HF Investigators. Hemodynamic, echocardiographic, and neurohormonal effects of istaroxime, a novel intravenous inotropic and lusitropic agent: a randomized controlled trial in patients hospitalized with heart failure. J Am Coll Cardiol. 2008 Jun 10;51(23):2276-85. doi: 10.1016/j.jacc.2008.03.015. Epub 2008 Apr 9.

Drugs

Evaluation	Drug	Modality	Dose	Route
Subject	Istaroxime	Small molecule	0.5 ug/kg	Intravenous
Subject	Istaroxime	Small molecule	1 ug/kg	Intravenous
Subject	Istaroxime	Small molecule	1.5 ug/kg	Intravenous

Indications