期刊
EMERGING INFECTIOUS DISEASES
卷 16, 期 10, 页码 1546-1553出版社
CENTERS DISEASE CONTROL & PREVENTION
DOI: 10.3201/eid1610.100374
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资金
- NIAID NIH HHS [T32 AI007046] Funding Source: Medline
- NIDDK NIH HHS [P30 DK067629] Funding Source: Medline
Therapeutic drug monitoring may be useful in tuberculosis management, but programmatic implementation is understudied. We performed a retrospective cohort study to determine prevalence of lower than expected levels of isoniazid, rifampin, ethambutol, and pyrazinamide measured at time of estimated peak serum concentration. Patients were tested for serum concentration at 2 hours after medication administration. When patients were tested, 22 had concentrations lower than expected range for rifampin, 23 of 39 patients had low levels of isoniazid, and 8 of 26 patients had low levels of ethambutol; all 20 patients tested for pyrazinamide were within expected range. Over 26 months, 42 patients met criteria for slow response. Diabetes was associated with slow response (p<0.001), and persons with diabetes were more likely than persons without diabetes to have low rifampin levels (p = 0.03). Dosage adjustment of rifampin was more likely to elevate serum concentration to the target range than adjustment of isoniazid given in daily doses (p = 0.01).
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