Journal
CHEMOTHERAPY
Volume 62, Issue 2, Pages 134-139Publisher
KARGER
DOI: 10.1159/000450748
Keywords
Paclitaxel; Docetaxel; Generic drugs; Hypersensitivity reaction
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Funding
- Ratchadapisek Sompoch Endowment Fund, Chulalongkorn University [CU-58-001-HR]
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Purpose: To compare incidences of hypersensitivity reaction (HSR) between original and generic taxanes including paclitaxel and docetaxel. Methods: We conducted a prospective study enrolling all patients receiving taxanes at King Chulalongkorn Memorial Hospital. Taxanes were infused accordingly to the step-wise rate escalation protocol at this hospital. Active surveillance for HSRs was performed. During the study period, there was only 1 generic brand used for each taxane. We primarily compared the incidences of HSR between original and generic drugs for each taxane. Results: During the period from January 1 to December 31, 2013, a total of 258 consecutive patients receiving taxanes were enrolled; 128 received paclitaxel, i.e. 65 and 63 in the original (Taxol) and generic arms, respectively, and 130 received docetaxel, i.e. 66 and 64 in the original (Taxotere) and generic arms, respectively. Premedication, including antihistamines and dexamethasone, was administered to all patients 30 min before taxane infusion. There were 26 (10.0%) HSR events including 24 grade 2 and 2 grade 3 HSRs. In the paclitaxel group, there were 9 (13.8%) and 7 (11.1%) HSRs in the original and generic arms, respectively (p = 0.791). In the docetaxel group, there were 9 (13.6%) and 1 (1.6%) HSRs in the original and generic arms, respectively (p = 0.017). No life-threatening symptoms or permanent discontinuation of taxanes occurred. Conclusions: In this prospective study, the incidences of HSR were similar with generic and original paclitaxel but significantly different with generic and original docetaxel. (C) 2016 S. Karger AG, Basel
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