Zanamivir Treatment of Vascular Permeability in Dengue (ZAP-DENGUE)

Overview

ZAP-DENGUE is a pilot randomized, double-blind, placebo-controlled evaluation of the safety and efficacy of five days of intravenous zanamivir treatment to treat vascular permeability syndrome which is the main cause of death in dengue fever.

ZAP-DENGUE is a pilot randomized, double-blind, placebo-controlled evaluation of the safety and efficacy of five days of intravenous zanamivir treatment to treat vascular permeability syndrome which is the main cause of death in dengue fever. Our central hypothesis is that zanamivir treatment is safe in patients with dengue infection, will significantly decrease serum sialic acid levels, and will result in fewer patients with the development of moderate or severe clinical plasma leakage. 74 male and non-pregnant female volunteers age 7 years and older from Colombia with a diagnosis of dengue fever with warning signs or severe dengue as per the World Health Organization 2009 definition with the presence of fever and positive rapid test for the presence of dengue non-structural protein-1 (NS1) will be randomized to zanamivir versus placebo. In the treatment group, all participants weighing less than 50 kg will receive 12 mg/kg and all participants weighing 50 kg and above will receive 600 mg as the initial dose intravenously every twelve hours for 5 days adjusted for renal function. In the placebo group, participants will receive placebo normal saline solution intravenously every twelve hours for 5 days. All patients will receive blood draws for assessment of hematocrit, renal function, and biologic efficacy endpoints and clinical evaluation of signs and symptoms of vascular permeability (which may include ultrasound and radiograph) and adverse events daily during the five days of medication administration and once at follow up at 14 days.

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