title: Multicenter prospective investigation on efficacy and safety of carperitide for acute heart failure in the 'real world' of therapy.
abstract: BACKGROUND
  Efficacy and safety assessments for carperitide (alpha-human atrial natriuretic peptide) in previous clinical trials have not mentioned its limitations in practice as therapy for acute heart failure.
  
  
  RESULTS
  A 6-year prospective open-label registry analysis was conducted in the 'real world' of therapy for 3,777 patients with acute heart failure (male 57%, median age 73) treated with 0.085 microg . kg(-1) . min(-1) (median, interquartile 0.05-0.1) of carperitide for 65 h (median, interquartile 22-142); 51% were assessed as class III or IV according to the Killip classification; 82% of the patients were assessed as clinically improved after carperitide treatment. The efficacy limitation was related to the underlying disease (acute myocardial infarction), severity of Killip classification (Class IV), and renal function disturbance. The efficacy was significantly higher in patients with decompensated chronic heart failure (ie, cardiomyopathy, valvular diseases, and hypertensive heart disease). Incidence of adverse events was 16.9%, the most frequent being blood pressure lowering (9.5%), which occurred in the first 3 h of infusion, with 96% of patients recovering or improving without specific treatment. Logistic regression analysis revealed that factors predicting mortality (11.4%) during 7 days of follow-up were age, Killip classification, renal function disturbance, low blood pressure and use of vasopressors.
  
  
  CONCLUSIONS
  The clinical condition improved in 82% of patients treated with carperitide. Based on these findings, minute strategy will be established for carperitide therapy within the strata of patient characteristics that may predict the prognosis.
authors.affiliation: Division of Drug Safety and Post Marketing Surveillance, Daiichi Suntory Pharma Company, Limited, Tokyo, Japan. Mitsuru_Suwa@dsup.co.jp
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Suwa
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Seino
authors.forename: Yoshikata
authors.initials: Y
authors.lastname: Nomachi
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Matsuki
authors.forename: Kazuteru
authors.initials: K
authors.lastname: Funahashi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D009320:Atrial Natriuretic Factor / Q000008:administration & dosage* / Q000633:toxicity; D005260:Female; D006333:Heart Failure / Q000188:drug therapy* / Q000209:etiology / Q000401:mortality; D006801:Humans; D007022:Hypotension / Q000139:chemically induced / Q000188:drug therapy; D007674:Kidney Diseases; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000188:drug therapy / Q000401:mortality; D011379:Prognosis; D012044:Regression Analysis; D012307:Risk Factors; D012720:Severity of Illness Index; D016896:Treatment Outcome; D014662:Vasoconstrictor Agents / Q000009:adverse effects
chemical_list: C472955:NPPA protein, human; D014662:Vasoconstrictor Agents; D009320:Atrial Natriuretic Factor