title: Effectiveness of imazodan for treatment of chronic congestive heart failure. The Imazodan Research Group.
abstract: A 12-week, multicenter, double-blind, randomized, placebo-controlled trial of imazodan, a type III phosphodiesterase inhibitor, was conducted in 147 patients with congestive heart failure to determine clinical efficacy and safety. Patients were randomized to placebo or 2, 5 or 10 mg of imazodan administered twice daily. Patients were maintained on their standard therapy including diuretics, digoxin and an angiotensin-converting enzyme inhibitor. The mean ejection fraction was 23 +/- 10%. Exercise time increased from baseline in all 4 groups. There was no significant difference observed between the placebo group and any of the treated groups with regard to exercise time, ejection fraction, frequency of ventricular premature complexes or ventricular tachycardia. When analyzed by intent to treat, the placebo mortality was 7% (3 of 44) and the imazodan mortality was 8% (8 of 103) (p = not significant). This study failed to demonstrate that imazodan provided any benefit in exercise performance when compared with placebo.
authors.affiliation: Division of Cardiovascular Medicine, Henry Ford Heart and Vascular Institute, Detroit, Michigan 48202.
authors.forename: A D
authors.initials: AD
authors.lastname: Goldberg
authors.forename: J
authors.initials: J
authors.lastname: Nicklas
authors.forename: S
authors.initials: S
authors.lastname: Goldstein
mesh_terms: D000284:Administration, Oral; D005117:Cardiac Complexes, Premature / Q000503:physiopathology; D002316:Cardiotonic Agents / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D002908:Chronic Disease; D004311:Double-Blind Method; D004361:Drug Tolerance; D015716:Electrocardiography, Ambulatory / Q000187:drug effects; D005080:Exercise Test; D005260:Female; D006333:Heart Failure / Q000188:drug therapy*; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D010726:Phosphodiesterase Inhibitors / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D010919:Placebos; D011724:Pyridazines / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D012449:Safety; D013318:Stroke Volume / Q000187:drug effects; D013997:Time Factors
chemical_list: D002316:Cardiotonic Agents; D010726:Phosphodiesterase Inhibitors; D010919:Placebos; D011724:Pyridazines; C042527:imazodan