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• W2998959636 abstract "Patients hospitalized at the time of human immunodeficiency virus-associated tuberculosis (HIV-TB) diagnosis have high early mortality. We hypothesized that compared to outpatients, there would be lower anti-TB drug exposure in hospitalized HIV-TB patients, and amongst hospitalized patients exposure would be lower in patients who die or have high lactate (a sepsis marker).We performed pharmacokinetic sampling in hospitalized HIV-TB patients and outpatients. Plasma rifampicin, isoniazid and pyrazinamide concentrations were measured in samples collected predose and at 1, 2.5, 4, 6 and 8 hours on the third day of standard anti-TB therapy. Twelve-week mortality was ascertained for inpatients. Noncompartmental pharmacokinetic analysis was performed.Pharmacokinetic data were collected in 59 hospitalized HIV-TB patients and 48 outpatients. Inpatient 12-week mortality was 11/59 (19%). Rifampicin, isoniazid and pyrazinamide exposure was similar between hospitalized and outpatients (maximum concentration [Cmax ]: 7.4 vs 8.3 μg mL-1 , P = .223; 3.6 vs 3.5 μg mL-1 , P = .569; 50.1 vs 46.8 μg mL-1 , P = .081; area under the concentration-time curve from 0 to 8 hours: 41.0 vs 43.8 mg h L-1 , P = 0.290; 13.5 vs 12.4 mg h L-1 , P = .630; 316.5 vs 292.2 mg h L-1 , P = .164, respectively) and not lower in inpatients who died. Rifampicin and isoniazid Cmax were below recommended ranges in 61% and 39% of inpatients and 44% and 35% of outpatients. Rifampicin exposure was higher in patients with lactate >2.2 mmol L-1 .Mortality in hospitalized HIV-TB patients was high. Early anti-TB drug exposure was similar to outpatients and not lower in inpatients who died. Rifampicin and isoniazid Cmax were suboptimal in 61% and 39% of inpatients and rifampicin exposure was higher in patients with high lactate. Treatment strategies need to be optimized to improve survival." @default.
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• W2998959636 date "2020-02-17" @default.
• W2998959636 modified "2023-10-18" @default.
• W2998959636 title "Early antituberculosis drug exposure in hospitalized patients with human immunodeficiency virus‐associated tuberculosis" @default.
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• W2998959636 doi "https://doi.org/10.1111/bcp.14207" @default.
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