March 19, 2021

#35 – Oral Beta-Lactams, Are We Serious?

1 hour 2 minutes

Dr. Jill Cowper (@jillcowper), and Dr. Jesse Sutton, join host Dr. Zahra Kassamali Escobar (@zkePharmD) to discuss the data behind use of oral beta-lactams as step-down therapy for bacteremia and other serious infections.

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References:

Sutton J, Stevens V, Chang NN et al. Oral β-Lactam Antibiotics vs Fluoroquinolones or Trimethoprim-Sulfamethoxazole for Definitive Treatment of Enterobacterales Bacteremia From a Urine Source. JAMA Netw Open. 2020 Oct 1;3(10):e2020166.

Punjabi C, Tien V, Meng C, et al. Oral Fluoroquinolone or Trimethoprim-Sulfamethoxazole vs ß-Lactams as Step-Down Therapy for Enterobacteriaceae Bacteremia: Systematic Review and Meta-analysis, Open Forum Infect Dis 2019; 6(10):ofz364.

Tamma PD, Conley AT, Cosgrove SE, et al. Association of 30-Day Mortality With Oral Step-Down vs Continued Intravenous Therapy in Patients Hospitalized With Enterobacteriaceae Bacteremia. JAMA Intern Med 2019; 179(3):316-323.

Mercuro NJ, Stogsdill P, Wungwattana M. Retrospective analysis comparing oral stepdown therapy for enterobacteriaceae bloodstream infections: fluoroquinolones versus beta-lactams. Int J Antimicrob Agents 2018;51(5)687-692.

Kutob LF, Justo JA, Bookstaver BA et al. Effectiveness of oral antibiotics for definitive therapy of Gram-negative bloodstream infections. Int J Antimicrob Agents 2016 Nov;48(5):498-503.

Mogle BT, Beccari MV, Steele JM, et al. Clinical considerations for oral beta-lactams as step-down therapy for Enterobacteriaceae bloodstream infections. Expert Opin Pharmacother. 2019 Jun;20(8):903-907.

Migils C, Rhodes NJ, Kuti JL, et al. Defining the impact of severity of illness on time above the MIC threshold for cefepime in Gram-negative bacteraemia: a 'Goldilocks' window. Int J Antimicrob Agents 2017;50(3):487-490.

Sandberg T, Englund G, Lincoln K, Nilsson LG. Randomised double-blind study of norfloxacin and cefadroxil in the treatment of acute pyelonephritis. Eur J Clin Microbiol Infect Dis. 1990;9(5):317-323.

Mahoney MV, Swords KE. Fluoroquinolones: Friends or Foe? Clin Infect Dis. Clin Infect Dis. 2021 Feb 19:ciab150.

Arensman K, Shields M, Beganovic M, et al. Fluoroquinolone versus beta-lactam oral step-down therapy for uncomplicated streptococcal bloodstream infections. Antimicrob Agents Chemother 2020;64(11):e01515-20.

Seaton RA, Ritchie ND, Robb F, et al. From 'OPAT' to 'COpAT': implications of the OVIVA study for ambulatory management of bone and joint infection. J Antimicrob Chemother. 2019 Aug 1;74(8):2119-2121.

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