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  • Title: Pentoxifylline efficacy in the treatment of intermittent claudication: multicenter controlled double-blind trial with objective assessment of chronic occlusive arterial disease patients.
    Author: Porter JM, Cutler BS, Lee BY, Reich T, Reichle FA, Scogin JT, Strandness DE.
    Journal: Am Heart J; 1982 Jul; 104(1):66-72. PubMed ID: 7046409.
    Abstract:
    The efficacy, safety, and tolerance of pentoxifylline (Trental, Hoechst-Roussel Pharmaceuticals, Inc.) in the treatment of intermittent claudication associated with chronic occlusive arterial disease (COAD) were evaluated in a double-blind, placebo-controlled, parallel-group, multicenter clinical trial involving a total of 128 outpatients. The response to treatment was ascertained at regular intervals during the trial by measuring the distance walked prior to the onset of claudication when patients were subjected to a standardized treadmill test. Pentoxifylline given orally in doses up to 1200 mg/day was significantly more effective than placebo in increasing both the initial and absolute claudication distances in patients with COAD. Reduction of lower limb paresthesias also suggested greater clinical improvement in the pentoxifylline treated patients. These results support the hypothesis that pentoxifylline reduces blood viscosity by improving red cell flexibility, and thereby enhances blood flow in patients with COAD. White the precise mode of therapeutic action requires clarification, pentoxifylline was well tolerated with minimal unwanted effects.
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