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  • Title: Are drug provocation tests still necessary to test the safety of COX-2 inhibitors in patients with cross-reactive NSAID hypersensitivity?
    Author: Çelik GE, Erkekol FÖ, Aydın Ö, Demirel YS, Mısırlıgil Z.
    Journal: Allergol Immunopathol (Madr); 2013; 41(3):181-8. PubMed ID: 23031659.
    Abstract:
    BACKGROUND: COX-2 inhibitors are safe alternatives in patients with cross-reactive non-steroidal anti-inflammatory drug (NSAID) hypersensitivity. These drugs are recommended to these patients after negative drug provocation tests (DPTs). However, cumulative data on encouraging results about the safety of COX-2 inhibitors in the majority of these patients bring the idea as to whether a DPT is always mandatory for introducing these drugs in all patients with cross-reactive NSAID hypersensitivity. OBJECTIVE: To document the safety of COX-2 inhibitors currently available and to check whether or not any factor predicts a positive response. METHODS: This study included the retrospective analysis of cases with cross-reactive NSAID hypersensitivity who underwent DPTs with COX-2 inhibitors in order to find safe alternatives. DPTs were single-blinded and placebo controlled. RESULTS: The study group consisted of 309 patients. COX-2 inhibitors were well tolerated in the majority of the patients [nimesulide: 91.9%; meloxicam: 90.2%; rofecoxib: 94.9%; and celecoxib: 94.9%)]. Twenty-five patients (30 provocations) reacted to COX-2 inhibitors. None of the factors were found be associated with positive response. CONCLUSION: Our results suggest to follow the traditional DPT method to introduce COX-2 inhibitors for finding safe alternatives in all patients with cross-reactive NSAID hypersensitivity before prescription as uncertainty of any predictive factor for a positive response continues. However, these tests should be performed in hospital settings in which emergency equipment and experienced personnel are available.
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