夫西地酸 (FA) 是一种强效甾体抗生素,已在欧洲使用了 60 多年,用于治疗由革兰氏阳性病原体引起的各种感染。尽管在临床上取得了成功,但 FA 需要显着增加剂量(第一天 3 g,随后几天 1.2 g)以最小化耐药性,因为 FA 显示出高耐药频率,并且观察到耐药细菌的最小抑制浓度有很大变化。尽管努力在这些方面进行改进,但所有先前构建的 FA 衍生物对革兰氏阳性菌的抗菌活性都比母体天然产物更差。在这里,我们报告了一种新型 FA 类似物的产生,该类似物对金黄色葡萄球菌( S. aureu s) 和金黄色葡萄球菌的临床分离株具有同等效力。与 FA 相比,粪肠球菌( E. faecium ) 以及改进的体外抗性谱。重要的是,这种新化合物在软组织小鼠感染模型中对金黄色葡萄球菌FA 抗性菌株显示出功效。这项工作描绘了有效抗生素活性所必需的 FA 的结构特征,并证明可以改善该支架和靶标的耐药性。
COMPOSITIONS COMPRISING FUSIDIC ACID AND PACKAGES THEREFOR
申请人:Pereira David E.
公开号:US20140088062A1
公开(公告)日:2014-03-27
Described are solid pharmaceutical compositions of fusidic acid, and pharmaceutically acceptable salts thereof, dosage units of the pharmaceutical compositions, and packages for pharmaceutical compositions of fusidic acid, and pharmaceutically acceptable salts thereof, which increase stability against the degradation of the fusidic acid, and pharmaceutically acceptable salts thereof. Also described are uses of the pharmaceutical compositions and dosage units in treating diseases.
[EN] ANTIBIOTICS WITH IMPROVED DRUG RESISTANCE PROFILE<br/>[FR] ANTIBIOTIQUES AYANT UN PROFIL DE RÉSISTANCE AUX MÉDICAMENTS AMÉLIORÉ
申请人:[en]THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
公开号:WO2022155290A1
公开(公告)日:2022-07-21
Novel Fusidic Acid (FA) based compounds that have equivalent potency against clinical isolates ofStaphylococcus aureus (S. aureus)andEnterococcus faecium (E. faecium)as well as an improved resistance profilein vitrowhen compared to FA. Importantly, the new compounds display efficacy against a FA-resistant strain ofStaphylococcus aureusin a soft-tissue murine infection model. This disclosure delineates the structural features of FA necessary for potent antibiotic activity and demonstrates that the resistance profile can be improved for this scaffold and target.
Synthesis of Fusidic Acid Derivatives Yields a Potent Antibiotic with an Improved Resistance Profile
作者:Martin Garcia Chavez、Alfredo Garcia、Hyang Yeon Lee、Gee W. Lau、Erica N. Parker、Kailey E. Komnick、Paul J. Hergenrother
DOI:10.1021/acsinfecdis.0c00869
日期:2021.2.12
Fusidic acid (FA) is a potent steroidal antibiotic that has been used in Europe for more than 60 years to treat a variety of infections caused by Gram-positivepathogens. Despite its clinical success, FA requires significantly elevated dosing (3 g on the first day, 1.2 g on subsequent days) to minimize resistance, as FA displays a high resistance frequency, and a large shift in minimum inhibitory concentration
夫西地酸 (FA) 是一种强效甾体抗生素,已在欧洲使用了 60 多年,用于治疗由革兰氏阳性病原体引起的各种感染。尽管在临床上取得了成功,但 FA 需要显着增加剂量(第一天 3 g,随后几天 1.2 g)以最小化耐药性,因为 FA 显示出高耐药频率,并且观察到耐药细菌的最小抑制浓度有很大变化。尽管努力在这些方面进行改进,但所有先前构建的 FA 衍生物对革兰氏阳性菌的抗菌活性都比母体天然产物更差。在这里,我们报告了一种新型 FA 类似物的产生,该类似物对金黄色葡萄球菌( S. aureu s) 和金黄色葡萄球菌的临床分离株具有同等效力。与 FA 相比,粪肠球菌( E. faecium ) 以及改进的体外抗性谱。重要的是,这种新化合物在软组织小鼠感染模型中对金黄色葡萄球菌FA 抗性菌株显示出功效。这项工作描绘了有效抗生素活性所必需的 FA 的结构特征,并证明可以改善该支架和靶标的耐药性。