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Daily 300 mg dose of linezolid for the treatment of intractable multidrug-resistant and extensively drug-resistant tuberculosis

Title
Daily 300 mg dose of linezolid for the treatment of intractable multidrug-resistant and extensively drug-resistant tuberculosis
Authors
Koh W.-J.Kwon O.J.Gwak H.Chung J.W.Cho S.-N.Kim W.S.Shim T.S.
Ewha Authors
곽혜선
Issue Date
2009
Journal Title
Journal of Antimicrobial Chemotherapy
ISSN
0305-7453JCR Link
Citation
Journal of Antimicrobial Chemotherapy vol. 64, no. 2, pp. 388 - 391
Indexed
SCI; SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Background: Although previous studies have suggested that linezolid may be effective for treating multidrug-resistant (MDR) and extensively drug-resistant (XDR) tuberculosis (TB), the optimal dose of linezolid for intractable MDR/XDR-TB is not clear. Methods: Twenty-four patients with intractable MDR/XDR-TB were treated with a daily 300 mg dose of linezolid as part of their anti-TB drug regimen. Results: The patients were treated with linezolid for a median duration of 359 days [interquartile range (IQR) 268-443 days]. Seventeen (71%) patients received 300 mg of linezolid once daily from the beginning of treatment for a median duration of 289 days (IQR 233-405 days). Of these patients, four developed peripheral neuropathy, one of whom discontinued linezolid. In seven (29%) patients, 600 mg/day linezolid was administered initially for a median duration of 104 days (IQR 26-145 days) followed by 300 mg/day linezolid for a median duration of 348 days (IQR 298-427 days). In five of these seven patients, the reason for changing from 600 to 300 mg/day was due to side effects of 600 mg/day linezolid (peripheral neuropathy in four patients and leucopenia in one patient). After reducing the dose to 300 mg/day, linezolid could be continued in six of the seven patients. Negative sputum conversion was achieved in 22 (92%) patients after a median of 89 days from the start of linezolid treatment (IQR 48-160 days). Conclusions: A daily 300 mg dose of linezolid may be useful for increasing the chances of culture conversion in the treatment of patients with intractable MDR/XDR-TB and might have fewer side effects, especially neurotoxicity, compared with a daily 600 mg dose of linezolid therapy. The present results encourage further research into the use of a 300 mg dose of linezolid for MDR/XDR-TB patients. © The Author 2009. Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy. All rights reserved.
DOI
10.1093/jac/dkp171
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약학대학 > 약학과 > Journal papers
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