Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

The Effectiveness of Generic Piperacillin/Tazobactam in Managing Gram-Negative Bacillary Bacteremia in Adult Patients at a Tertiary Care Hospital

Version 1 : Received: 2 June 2024 / Approved: 3 June 2024 / Online: 3 June 2024 (09:00:07 CEST)

How to cite: Álvarez-Moreno, C. A.; Kock, J.; Cely, L.; Montañez Ayala, A.; Salcedo García, O.; Hernandez Quintana, M. A. The Effectiveness of Generic Piperacillin/Tazobactam in Managing Gram-Negative Bacillary Bacteremia in Adult Patients at a Tertiary Care Hospital. Preprints 2024, 2024060045. https://doi.org/10.20944/preprints202406.0045.v1 Álvarez-Moreno, C. A.; Kock, J.; Cely, L.; Montañez Ayala, A.; Salcedo García, O.; Hernandez Quintana, M. A. The Effectiveness of Generic Piperacillin/Tazobactam in Managing Gram-Negative Bacillary Bacteremia in Adult Patients at a Tertiary Care Hospital. Preprints 2024, 2024060045. https://doi.org/10.20944/preprints202406.0045.v1

Abstract

Background: Gram-negative bacteremia, especially from Klebsiella spp., Escherichia coli, and Pseudomonas aeruginosa, poses a significant public health threat due to multidrug resistance and high mortality rates. Cost-effective treatments are essential in low-middle income countries as Colombia. Methods: This descriptive, phase IV study was conducted in a tertiary care hospital in Colombia. Adult patients with Gram-negative bacteremia treated with generic piperacillin/tazobactam (Penibactam®) were evaluated. Clinical and microbiological responses were assessed over 12 months. Results: The study included 30 critically ill patients with an average APACHE II score of 22.12. The clinical response at day 7 was 66% (n = 20), and the microbiological response was 56.7% (n = 17). By the end of follow-up, clinical improvement was observed in 63.3% (n = 19), with a mortality rate of 23% (n = 7). The cardiovascular system was the most common infection site. Conclusions: Generic piperacillin/tazobactam demonstrated effectiveness and safety comparable to existing literature in treating Gram-negative bacteremia, offering a viable, cost-effective alternative for critically ill patients in real-world settings.

Keywords

critically ill patient; bacteremia; piperacillin/tazobactam; real-world evidence

Subject

Medicine and Pharmacology, Epidemiology and Infectious Diseases

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