Activity of SPR206, a Polymyxin Derivative, Compared to Colistin Alone and in Combination Against Multidrug-Resistant Pseudomonas aeruginosa Strains Posted on October 27, 2020 at 3:46 pm.Written by Spero Therapeutics View Presentation Post navigation SPR720, A Novel Aminobenzimidazole Gyrase Inhibitor, Demonstrates Potent Efficacy Against Mycobacterium avium ATCC 700898 in a Chronic C3HeBFeJ Mouse Infection ModelEmpiric Antimicrobial Prescribing for Urinary Tract Infections in Patients Discharged from the Emergency Department