Study on antitumor activity of free and liposomal anthracycline antibiotic aclarubicin in vitro and in vivo showed that liposomal aclarubicin was characterised by activity against ascitic Ehrlich carcinoma comparable to that of free aclarubicin when used in a dose of 25 mg/kg. Liposomal antibiotic had a more pronounced antimetastatic action and showed no toxicity (in a dose of 30 mg/kg). Liposomal aclarubicin had a higher activating capacity with respect to the macrophage tumoricidal properties.
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