title: Carboplatin hypersensitivity reactions: re-treatment with cisplatin desensitisation.
abstract: OBJECTIVE
  This aim of this study was to investigate the feasibility of re-treating patients who had experienced a hypersensitivity reaction to carboplatin with cisplatin following desensitisation.
  
  
  METHODS
  Five patients with recurrent ovarian cancer who had a previous documented hypersensitivity reaction to carboplatin and a good clinical indication for continuing treatment with platinum were retreated following cisplatin desensitisation. All patients were rechallenged with cisplatin following a prolonged desensitisation protocol and the initial four patients then received subsequent cycles with a shortened protocol in an attempt to simplify and shorten the procedure.
  
  
  RESULTS
  All five patients tolerated their first cycle of cisplatin on rechallenge using the full desensitisation protocol with no adverse reactions. Two patients received further treatments (one and three cycles) with a shortened protocol but treatment was terminated due to further adverse hypersensitivity reactions. Two patients received one further cycle with a shortened protocol and did not experience problems with hypersensitivity but treatment was stopped due to evidence of disease progression One patient received a further two cycles using the full desensitisation protocol without problems but treatment was stopped due to evidence of disease progression.
  
  
  CONCLUSIONS
  A full cisplatin desensitisation protocol appears to be an effective way to re-treat patients who have previously experienced a hypersensitivity reaction to carboplatin. Attempts to shorten the procedure were associated with further allergic reactions, suggesting that the full protocol should be followed with each treatment.
authors.affiliation: Department of Medical Oncology, Prince of Wales Hospital, High Street, Randwick NSW 2031, Australia.
authors.forename: Robert
authors.initials: R
authors.lastname: Jones
authors.forename: Mary
authors.initials: M
authors.lastname: Ryan
authors.forename: Michael
authors.initials: M
authors.lastname: Friedlander
mesh_terms: D000970:Antineoplastic Agents / Q000009:adverse effects* / Q000627:therapeutic use; D016190:Carboplatin / Q000009:adverse effects* / Q000627:therapeutic use; D002945:Cisplatin / Q000009:adverse effects / Q000627:therapeutic use*; D003907:Dexamethasone / Q000627:therapeutic use; D004155:Diphenhydramine / Q000627:therapeutic use; D004342:Drug Hypersensitivity / Q000188:drug therapy / Q000209:etiology* / Q000517:prevention & control*; D005260:Female; D006801:Humans; D009364:Neoplasm Recurrence, Local / Q000188:drug therapy*; D010051:Ovarian Neoplasms / Q000188:drug therapy*
chemical_list: D000970:Antineoplastic Agents; D003907:Dexamethasone; D004155:Diphenhydramine; D016190:Carboplatin; D002945:Cisplatin