A double-blind, placebo-controlled, crossover trial of ketotifen versus hydroxyzine in the treatment of pediatric mastocytosis
1989
Abstract To asses the efficacy of ketotifen (Zaditen; Sandoz Pharmaceuticals, Basel, Switzerland) for the treatment of pediatric mastocytosis, eight children who exhibited symptoms as a result of mastocytosis were enrolled in a 12-week, double-blind, placebo-controlled, crossover trial of ketotifen versus hydroxyzine (Atarax; Roerig, New York, N.Y.). Efficacy of each drug was assessed by daily symptom scores and plasma- and 24-hour urine-histamine levels. After completion of the study, symptom scores revealed that seven of the eight children exhibited a greater reduction in symptoms while they were receiving hydroxyzine ( p p > 0.20). Changes in 24-hour urine-histamine levels, but not plasma-histamine levels, correlated with changes in symptom scores. We conclude that ketotifen offers no advantage over hydroxyzine in the treatment of pediatric mastocytosis.
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