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Despite impressive cure rates for several antileishmanial agents, lengthy treatment courses limit the appeal of these therapies. In recent clinical trials, high cure rates have been seen with a 5-day course of liposomal amphotericin B. This finding, coupled with a price reduction for this antimicrobial in developing countries, prompted evaluation of even shorter courses of therapy.
In an open-label trial, 410 patients with visceral leishmaniasis, or kala-azar, were randomized to receive a single infusion of liposomal amphotericin B (10 mg/kg) or 15 alternate-day infusions of amphotericin B deoxycholate (1 mg/kg; conventional therapy). The trial was conducted in northeastern India, which is home to approximately 50% of such patients worldwide…