Controversy about the Role of Rifampin in Biofilm Infections: Is It Justified?

Renz, Nora; Trampuz, Andrej; Zimmerli, Werner (2021). Controversy about the Role of Rifampin in Biofilm Infections: Is It Justified? Antibiotics, 10(2) MDPI 10.3390/antibiotics10020165

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Rifampin is a potent antibiotic against staphylococcal implant-associated infections. In the absence of implants, current data suggest against the use of rifampin combinations. In the past decades, abundant preclinical and clinical evidence has accumulated supporting its role in biofilm-related infections.In the present article, experimental data from animal models of foreign-body infections and clinical trials are reviewed. The risk for emergence of rifampin resistance and multiple drug interactions are emphasized. A recent randomized controlled trial (RCT) showing no beneficial effect of rifampin in patients with acute staphylococcal periprosthetic joint infection treated with prosthesis retention is critically reviewed and data interpreted. Given the existing strong evidence demonstrating the benefit of rifampin, the conduction of an adequately powered RCT with appropriate definitions and interventions would probably not comply with ethical standards.

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