Induction of Remission in Chronic Urticaria by Immunotherapy Using Immunoglobulin/histamine Complex (HistobulinTM): A Case Report

Abstract Background: Symptom control is a major concern in chronic urticaria. HistobulinTM is a histamine/immunoglobulin complex and has been reported to be effective for chronic urticaria.Case Presentation: HistobulinTM was administered until remission was induced instead of fixing the number of administrations in four cases of chronic urticaria. Two patients showed an early response and finished treatment with 12 injections of Histobulin, and the other two patients showed a late response and were injected 43 times and 46 times. Remission was induced successfully in all four cases.Conclusions: HitobulinTM is not only effective but also induces remission in CSU. The HistobulinTM therapy protocol in CSU may be better if the treatment is continued until remission is achieved. Based on the responses of the patients, early responders and late responders were present. The progress of the disease during treatment consisted of a slow improvement phase and a rapid improvement phase. Uniquely, the appropriate allergy laboratory results, including blood eosinophil fraction, total IgE and eosinophil cationic protein level, were normal in all 4 cases. Further studies concerning the mechanisms of HistobulinTM may be needed.