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Determination of MIC Distribution and Epidemiological Cutoff Values for Bedaquiline and Delamanid in Mycobacterium tuberculosis Using the MGIT 960 System Equipped with TB eXiST

机译:使用配备TB eXiST的MGIT 960系统确定结核分枝杆菌中贝达喹啉和德拉曼尼的MIC分布和流行病学临界值

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摘要

Bedaquiline (Sirturo) and delamanid (Deltyba) have recently been approved by the regulatory authorities for treatment of multidrug-resistant tuberculosis (MDR-TB). Antimicrobial susceptibility testing is not established for either substance. On the basis of the use of the MGIT 960 system equipped with EpiCenter/TB eXiST, we determined a mean bedaquiline MIC for wild-type strains of 0.65 mg/liter (median, 0.4 mg/liter) and an epidemiological cutoff (ECOFF) of 1.6 mg/liter; for delamanid, a mean wild-type drug MIC of 0.013 mg/liter (median, 0.01 mg/liter) and an ECOFF of 0.04 mg/liter were determined.
机译:Bedaquiline(Sirturo)和delamanid(Deltyba)最近已获监管机构批准用于治疗耐多药结核病(MDR-TB)。两种物质均未建立抗药性试验。基于配备EpiCenter / TB eXiST的MGIT 960系统的使用,我们确定了0.65 mg /升(中值,0.4 mg /升)的野生型菌株的贝达喹啉平均MIC,流行病学临界值(ECOFF)为0.6。 1.6毫克/升对于德拉曼尼德,测定的平均野生型药物MIC为0.013 mg / L(中位数为0.01 mg / L),ECOFF为0.04 mg / L。

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