Oral oxaborole MRX-5 exhibits efficacy against pulmonary Mycobacterium abscessus in mouse.

IF 4.1 2区 医学 Q2 MICROBIOLOGY Antimicrobial Agents and Chemotherapy Pub Date : 2024-11-06 Epub Date: 2024-10-03 DOI:10.1128/aac.01351-24
Binayak Rimal, Ruth A Howe, Chandra M Panthi, Wen Wang, Gyanu Lamichhane
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Abstract

Mycobacterium abscessus (Mab) is an opportunistic pathogen common in patients with lung comorbidities and immunosuppression. There are no FDA-approved treatments, and current treatment has a failure rate exceeding 50%. The intravenous oxaborole MRX-6038 is active against Mab. This study evaluated MRX-5, the oral prodrug, against five Mab isolates in a mouse lung infection model. MRX-5 showed dose-dependent efficacy, with 15 and 45 mg/kg doses comparable to the standard of care, supporting progression to clinical trial.

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口服氧硼烷 MRX-5 对小鼠肺脓肿分枝杆菌具有疗效。
脓肿分枝杆菌(Mab)是一种机会性病原体,常见于肺部合并症和免疫抑制患者。目前还没有获得美国食品及药物管理局批准的治疗方法,现有治疗的失败率超过 50%。静脉注射的氧硼烷 MRX-6038 对马布病有活性。这项研究评估了口服原药 MRX-5 在小鼠肺部感染模型中对五种马巴病毒分离物的疗效。MRX-5显示出剂量依赖性疗效,15和45毫克/千克的剂量与标准治疗相当,支持将其推向临床试验。
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来源期刊
CiteScore
10.00
自引率
8.20%
发文量
762
审稿时长
3 months
期刊介绍: Antimicrobial Agents and Chemotherapy (AAC) features interdisciplinary studies that build our understanding of the underlying mechanisms and therapeutic applications of antimicrobial and antiparasitic agents and chemotherapy.
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