alexa Standardization of skin tests for diagnosis and prevention of hypersensitivity reactions to oxaliplatin.


Journal of Allergy & Therapy

Author(s): Pagani M, Bonadonna P, Senna GE, Antico A

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Abstract BACKGROUND: Platinum salts can cause allergic sensitization. Recently, hypersensitivity reactions to oxaliplatin, the most recent platinum coordination complex introduced into clinical practice, have been reported. OBJECTIVE: To validate and standardize skin tests to diagnose and possibly prevent hypersensitivity reactions to oxaliplatin. The secondary aims were to confirm IgE-mediated pathogenesis of the clinical manifestations and to evaluate skin tests to predict patients at risk of hypersensitivity reactions to oxaliplatin. METHODS: We performed skin tests at increasing concentrations of oxaliplatin on 15 patients never exposed to platinum salts, on 10 patients treated with oxaliplatin without any adverse reactions, and on 4 patients who had shown hypersensitivity reactions to the drug. Moreover we performed skin tests on 8 additional patients starting before the 5th dose and following a course of chemotherapy. RESULTS: A positive skin reaction to the prick test at a concentration of 1 mg/ml was seen in 1 patient with hypersensitivity reactions. The intradermal test was positive in all the patients with hypersensitivity reactions at a concentration of 0.1 mg/ml. It was negative in the 15 nonexposed subjects, and in the 10 patients who had been exposed to oxaliplatin without hypersensitivity reactions. The skin test administered to patients before chemotherapy was positive in one case. CONCLUSION: A skin prick test at a concentration of 1 mg/ml and, in the case of a negative response, an intradermal test at the optimal concentration of 0.1 mg/ml should be used, starting from the 5th course of therapy, to diagnose and prevent hypersensitivity reactions to oxaliplatin. 2007 S. Karger AG, Basel This article was published in Int Arch Allergy Immunol and referenced in Journal of Allergy & Therapy

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