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  • Title: A preliminary double-blind cross-over trial of lipo-PGI2, a prostacyclin derivative incorporated in lipid microspheres, in cerebral infarction.
    Author: Hoshi K, Mizushima Y.
    Journal: Prostaglandins; 1990 Aug; 40(2):155-64. PubMed ID: 2217831.
    Abstract:
    Lipo-PGI2 is a drug preparation of a PGI2 analogue (isocarbacyclin methylester) which is incorporated into lipid microspheres with a diameter of 0.2 mu. Lipo-PGI2 has been shown to accumulate at the vascular wall, particularly those of arteriosclerotic lesions, and it has a much stronger inhibitory activity on platelet aggregation than free isocarbacyclin. In this study, a preliminary double-blind cross over trial of lipo-PGI2 in cerebral infarction was carried out. Seventeen patients with chronic cerebral infarction received 2 micrograms of lipo-PGI2 and placebo daily for one week each in a cross-over double blind test. A significant improvement was noted for lipo-PGI2 compared with placebo in the overall improvement in neurological and mental symptoms (p less than 0.01). The patient's preference also indicated the effectiveness of lipo-PGI2 (p less than 0.05). Adverse reactions were noted in 3 patients receiving placebo, but not in any receiving lipo-PGI2. These results show that lipo-PGI2 at a very low dose would be beneficial as a treatment for relieving the clinical symptoms of chronic cerebral infarction and that lipid microspheres are a useful drug carrier for PGI2 analogue therapy.
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