Nov. 15, 2010 (Chicago) -- The diuretic pill Inspra substantially cuts the risk of death and hospitalization among people with mild heart failure, researchers report.
The findings suggest that the drug, already used to treat advanced heart failure, also has value for people with mild disease, says study leader Faiez Zannad, MD, PhD, of Nancy University in Nancy, France.
The results were reported here at the American Heart Association's annual meeting and published simultaneously online in the New England Journal of Medicine.
After nearly two years, Inspra reduced the risk of dying from heart disease or being hospitalized for heart failure by 37%, compared with placebo, the study showed.
About 13% of patients on Inspra died vs. 16% of patients given placebo. Also, 12% of patients on Inspra were hospitalized for heart failure, compared with nearly 19% of those on placebo.
Only 19 people would need to be treated for one year to prevent one death due to heart disease or heart failure hospitalization, and 51 to prevent one death, Zannad tells WebMD.
That "position[s] this therapy in the front rank of therapeutic choices," Paul W. Armstrong, MD, of the University of Alberta in Edmonton, writes in an editorial accompanying the study.
Inspra's Cheaper Cousin May Offer Option in Heart Failure
More than 5 million Americans have heart failure, which occurs when the heart muscle becomes damaged and loses its ability to pump enough blood throughout the body, often as a result of a heart attack or years of uncontrolled high blood pressure.
Fluid can back up into the lungs, leaving people gasping for breath. Fluid can also build up in other tissues, causing swelling. Inspra, made by Pfizer Inc., which funded the study, helps block water retention.
The University of Pennsylvania's Mariell Jessup, MD, head of the committee that chose which studies to highlight at the meeting, tells WebMD that the new findings have the potential to change how doctors treat people with mild heart failure.
Armstrong says that an alternative is to use Inspra's older cousin, spironolactone. It costs less than $30 a month vs. more than $130 for a 30-day supply of Inspra.