[Paclitaxel hypersensitivity reactions in patients with advanced ovarian carcinoma]

The purpose of our study was to analyze the rate of hypersensitivity reactions (HSRs) to paclitaxel in patients with advanced ovarian carcinoma. We also analyzed the possibility of re-administration paclitaxel with adequate treatment after hypersensitivity reactions.

The incidence of HSRs was analyzed retrospectively in 112 patients who received 24-hr infusions of paclitaxel (135 mg/m2) for advanced ovarian cancer at the Department of Gynecology Medical University of Gdańsk between the January 2000 and the February 2002. Before each course of the paclitaxel administration patients received orally dexamethasone (20 mg p.o., 12 and 6 hours prior to the chemotherapy) and thirty minutes prior to the infusion of paclitaxel all patients received, diphenhydramine (50 mg), and cimetidine (300 mg) intravenously (i.v.). When HSR was observed administration of paclitaxel was temporally stopped and before the re-challenge additional intravenous dosage of hydrocortisone (200-500 mg) and diphenhydramine (25 mg) was given.

Severe hypersensitivity reactions occurred in 9 patients (8%) and the administration of paclitaxel was withdrawn. Mild hypersensitivity reactions were observed in 8 patients (7%) and all of these patients were successfully retreated with paclitaxel without HSRs.

We conclude that this premedication and treatment strategy provides lower hypersensitivity reactions rate and allows for continuing administration of paclitaxel in patients with advanced ovarian carcinoma.