Combined Antiviral and Antimediator Treatment of Rhinovirus Colds

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Abstract
An antiviral agent and two antiinflammatory compounds were used in a blinded, placebo-controlled study to treat experimental rhinovirus colds. Intranasal interferon-α2b and ipratropium and oral naproxen were begun 24 h after rhinovirus inoculation. Treatment was continued three times a day for 4 days. Viral shedding (mean ± SE) was 4.4 ± 0.3 days for controls and 2.9 ± 0.3 days for treated volunteers (P < .003). Geometric mean virus titers were reduced in the treated group on all days (P = .02–.06). Serum antibody responses and postinfection geometric mean antibody titers were similar in both groups (P > .1). Colds developedin 6 of 16 treated and 7 of 8 control subjects (P = .05). Mean total symptom scores (P = .055), rhinorrhea (P < .01), cough (P < .01), and malaise (P < .001) were reduced in treated subjects. Trends in reduction of nasal obstruction and sore throat also favored the treated group. Nasal secretion weights were 12.9 ± 4.8 g in treated and 20.3 ± 5.4 g in control subjects (P = .4). Medications were well tolerated.

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