PMID- 31843995 OWN - NLM STAT- MEDLINE DCOM- 20201214 LR - 20201214 IS - 1098-6596 (Electronic) IS - 0066-4804 (Print) IS - 0066-4804 (Linking) VI - 64 IP - 3 DP - 2020 Feb 21 TI - Pharmacokinetics and Tolerability of Intravenous Sulbactam-Durlobactam with Imipenem-Cilastatin in Hospitalized Adults with Complicated Urinary Tract Infections, Including Acute Pyelonephritis. LID - 10.1128/AAC.01506-19 [doi] LID - e01506-19 AB - Durlobactam (DUR; ETX2514) is a novel beta-lactamase inhibitor with broad-spectrum activity against Ambler class A, C, and D beta-lactamases. Durlobactam restores the in vitro activity of sulbactam (SUL) against members of the Acinetobacter baumannii-A. calcoaceticus complex (ABC). Sulbactam (SUL)-durlobactam (SUL-DUR) is under development for the treatment of ABC infections. Eighty patients with complicated urinary tract infection (cUTI), including acute pyelonephritis (AP), were randomized 2:1 to receive SUL-DUR at 1 g/1 g intravenously (i.v.) or placebo every 6 h (q6h) for 7 days and background therapy with imipenem-cilastatin (IMI) at 500 mg i.v. q6h to evaluate the tolerability of SUL-DUR in hospitalized patients. Patients with bacteremia could receive up to 14 days of therapy. SUL-DUR tolerability and the values of various pharmacokinetic (PK) parameters were determined. Efficacy was recorded at the test-of-cure (TOC) visit. SUL-DUR was well tolerated, with no serious adverse events (AEs) being reported. Headache (5.7%), nausea (3.8%), diarrhea (3.8%), and vascular pain (3.8%) were the most common drug-related AEs with SUL-DUR and were mostly of mild or moderate severity. The PK profile of DUR and SUL in hospitalized patients was consistent with observations in healthy volunteers. Overall success in the microbiological modified intent-to-treat (m-MITT) population was similar between the groups, as would be expected with IMI background therapy in all patients (overall success at the TOC visit, 76.6% [n = 36] with SUL-DUR and 81.0% [n = 17] with placebo). SUL-DUR in combination with IMI was well tolerated in patients with cUTIs. The pharmacokinetics of SUL-DUR observed in hospitalized patients was similar to that observed in healthy volunteers. (This study has been registered at ClinicalTrials.gov under identifier NCT03445195.). CI - Copyright (c) 2020 Sagan et al. FAU - Sagan, Olexiy AU - Sagan O AD - Regional Clinical Hospital of Zaporizhzhia, Zaporizhzhia, Ukraine. FAU - Yakubsevitch, Ruslan AU - Yakubsevitch R AD - Grodno Regional Clinical Hospital, Hrodna, Belarus. FAU - Yanev, Krassimir AU - Yanev K AD - Clinic of Urology, Sofia, Bulgaria. FAU - Fomkin, Roman AU - Fomkin R AD - Saratov State Medical University, Saratov, Russia. FAU - Stone, Emily AU - Stone E AD - Spero Therapeutics, Cambridge, Massachusetts, USA. FAU - Hines, Daniel AU - Hines D AD - Entasis Therapeutics, Inc., Waltham, Massachusetts, USA. FAU - O'Donnell, John AU - O'Donnell J AD - Entasis Therapeutics, Inc., Waltham, Massachusetts, USA. FAU - Miller, Alita AU - Miller A AD - Entasis Therapeutics, Inc., Waltham, Massachusetts, USA. FAU - Isaacs, Robin AU - Isaacs R AD - Entasis Therapeutics, Inc., Waltham, Massachusetts, USA. FAU - Srinivasan, Subasree AU - Srinivasan S AD - Entasis Therapeutics, Inc., Waltham, Massachusetts, USA suba.srinivasan@entasistx.com. LA - eng SI - ClinicalTrials.gov/NCT03445195 PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20200221 PL - United States TA - Antimicrob Agents Chemother JT - Antimicrobial agents and chemotherapy JID - 0315061 RN - 0 (Anti-Bacterial Agents) RN - 92309-29-0 (Cilastatin, Imipenem Drug Combination) RN - S4TF6I2330 (Sulbactam) SB - IM MH - Acute Disease MH - Administration, Intravenous MH - Adult MH - Aged MH - Anti-Bacterial Agents/administration & dosage/*pharmacokinetics/*therapeutic use MH - Cilastatin, Imipenem Drug Combination/administration & dosage/*pharmacokinetics/*therapeutic use MH - Female MH - Humans MH - Male MH - Middle Aged MH - Placebo Effect MH - Pyelonephritis/*drug therapy/*microbiology MH - Sulbactam/administration & dosage/*pharmacokinetics/*therapeutic use MH - Urinary Tract Infections/*drug therapy PMC - PMC7038258 OTO - NOTNLM OT - acute pyelonephritis OT - durlobactam OT - sulbactam OT - urinary tract infection EDAT- 2019/12/18 06:00 MHDA- 2020/12/15 06:00 PMCR- 2020/02/21 CRDT- 2019/12/18 06:00 PHST- 2019/07/24 00:00 [received] PHST- 2019/11/26 00:00 [accepted] PHST- 2019/12/18 06:00 [pubmed] PHST- 2020/12/15 06:00 [medline] PHST- 2019/12/18 06:00 [entrez] PHST- 2020/02/21 00:00 [pmc-release] AID - AAC.01506-19 [pii] AID - 01506-19 [pii] AID - 10.1128/AAC.01506-19 [doi] PST - epublish SO - Antimicrob Agents Chemother. 2020 Feb 21;64(3):e01506-19. doi: 10.1128/AAC.01506-19. Print 2020 Feb 21.