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  • Title: MDL 17,043 therapy in severe congestive heart failure: characterization of the early and late hemodynamic, pharmacokinetic, hormonal and clinical response.
    Author: Uretsky BF, Generalovich T, Verbalis JG, Valdes AM, Reddy PS.
    Journal: J Am Coll Cardiol; 1985 Jun; 5(6):1414-21. PubMed ID: 3158689.
    Abstract:
    MDL 17,043, an agent with both inotropic and vasodilator properties, was evaluated in the treatment of chronic severe heart failure. The early and late hemodynamic, hormonal, pharmacokinetic and clinical responses to oral MDL 17,043 were studied in 20 patients. MDL 17,043 acutely increased cardiac output from 3.6 +/- 0.9 to 4.6 +/- 1.0 liters/min (+28%, p less than 0.001) and decreased mean pulmonary artery wedge pressure from 24 +/- 8 to 13 +/- 8 mm Hg (-46%, p less than 0.001), mean right atrial pressure from 10 +/- 5 to 4 +/- 4 mm Hg (-60%, p less than 0.001) and mean arterial pressure from 78 +/- 9 to 70 +/- 11 mm Hg (-10%, p less than 0.001). Hemodynamic improvement was sustained for 8 hours. Plasma renin activity tended to increase (0.10 less than p greater than 0.05), plasma norepinephrine tended to decrease (0.10 less than p greater than 0.05) and arginine vasopressin did not show any directional change. Elimination half-life for MDL 17,043 was approximately 20 hours. Hemodynamic responsiveness was maintained in six patients undergoing restudy at 4 weeks. Initial subjective improvement in the 20 patients occurred in 90%, was present at 4 weeks in 50% and continued longer than 3 months in 25%. Side effects occurred in 75% and required cessation of treatment in 10%. Thirteen (93%) of 14 patients on long-term therapy died (median time after start of MDL 17,043 therapy 39 days). Deaths were sudden in 69%. It is concluded that oral MDL 17,043 produces early and late hemodynamic improvement in patients with severe heart failure.(ABSTRACT TRUNCATED AT 250 WORDS)
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