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Symposium 7:Regimen optimization and therapeutic drug monitoring

Mycobacterium tuberculosis complex with resistance against both isoniazid and rifampicin emerges due to the mismanagement of anti-TB treatment and continues to spread through person-to-person transmission. Rifampicin-resistant and multidrug-resistant (MDR) TB were estimated to account for about 4.7% of incident TB cases annually. The course of conventional drug-resistant TB treatment lasts for a long duration (at least 18 months or longer) using highly toxic second-line regimens with a low overall treatment success rate of 61%. The treatment-associated adverse events are the main causes of patients withdrawing from anti-TB treatment. Active surveillance of adverse events during MDR-TB treatment consistently showed an exceeding high prevalence of adverse events ranging from 71.3%-90.7%. The bactericidal and sterilizing activities of the anti-TB agents were dose-dependent. Many of the treatment-associated adverse events were also dose-dependent. However, there were wide variabilities between individuals in drug absorption, distribution, metabolism, and excretion. One-fit-all dose recommendations may not provide optimal drug exposure. To ensure adequate drug efficacy and to avoid toxicities of 2nd-line anti-TB agents, therapeutic drug monitoring (TDM) provides a practical solution to achieve the desired drug exposure for 2nd-line anti-TB agents.

Date: Saturday, April 27, 2024 | Time: 14:50-16:20 (GMT+8)