Characteristics and Risk Factors of Oxaliplatin-related Hypersensitivity Reactions

Background/Purpose: Hypersensitivity reactions during oxaliplatin infusion are a major problem associated with its use. In this study, we investigated the characteristics and risk factors of these events. Methods: All patients who had received oxaliplatin in outpatient settings from January 2006 to March 2007 in a medical center were enrolled in this retrospective study. All the oxaliplatin infusions were reviewed. Manifestations of hypersensitivity reactions and clinicopathological variables were collected from medical records. Results: Three hundred and eighty-three patients with 3648 oxaliplatin infusions were reviewed. Forty-seven patients (12.7%) developed hypersensitivity reactions, which occurred after a median of 10 infusions. The median time of onset from start of infusion was 40 minutes. most presentations (90.7%) were mild to moderate, but rechallenge with oxaliplatin led to a high chance of further reactions (71.4%). Cutaneous symptoms were the most prevalent manifestation, followed by respiratory symptoms. With each repeated infusion, the incidence of hypersensitivity reactions increased. Higher oxaliplatin dose per infusion was an independent risk factor for such reactions. Conclusion: Patients treated with oxaliplatin for an extended period have a greater risk of oxaliplatin-related hypersensitivity reactions.