Abstract
The high prevalence of carboplatin hypersensitivity reactions (HSR) significantly affects the treatment of pediatric patients with low-grade glioma (LGG). Rechallenging patients is an option that must balance the risks of repeat allergic reaction to the benefits of retaining an effective anti-tumor regimen. We performed a retrospective review of children with LGG treated with carboplatin and vincristine between October 2000 and April 2013, who had a documented HSR to carboplatin. Patients were re-exposed to carboplatin using either precautionary measures (prolonged infusion time and premedication with H1 antagonists, H2 antagonists, and corticosteroids), a desensitization protocol, or both. We report the results of our institutional experience of carboplatin re-exposure using both premedication with a prolonged infusion time and a desensitization protocol. Overall, 40 of 55 (73%) patients were successfully rechallenged with carboplatin, including 19 of 25 (76%) patients who underwent desensitization. Our results demonstrate re-exposure to be a safe alternative to abandoning carboplatin for patients with a hypersensitivity reaction. We propose a clinical algorithm for treatment.
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