Positive Phase 3 Results for Cefepime-Taniborbactam in NEJM

3 June 2024
In a recent breakthrough, the innovative antibiotic combination of cefepime and taniborbactam has demonstrated superiority over the standard meropenem in treating complicated urinary tract infections (cUTI), including acute pyelonephritis, according to a study published in the New England Journal of Medicine. The research, conducted by Venatorx Pharmaceuticals, a licensing partner of Everest Medicines, highlights the effectiveness of this new agent in tackling infections that are typically resistant to a range of antibiotics.

The study, known as CERTAIN-1, was a comprehensive, randomized, multicenter, double-blind trial that involved 661 hospitalized patients. It compared the new treatment to meropenem, a commonly used antibiotic, at a dosage of 2.5 g every 8 hours for cefepime-taniborbactam and 1 g every 8 hours for meropenem. The primary goal was to evaluate the combined microbiological and clinical response during the Test of Cure visit, which took place between days 19 and 23 post-treatment.

The results were compelling, with cefepime-taniborbactam achieving a 70.6% response rate compared to 58.0% for meropenem, thus meeting the non-inferiority endpoint. More notably, the analysis showed that cefepime-taniborbactam was statistically superior to meropenem, with a 12.6% difference in response rates and a p-value of 0.009, indicating a significant advantage. This superiority was sustained even at the Late Follow-up visit, further validating the drug's efficacy.

In terms of safety, cefepime-taniborbactam's profile was found to be on par with meropenem, with treatment-emergent adverse events occurring in 35.5% of patients treated with the new agent and 29.0% of those treated with meropenem. Serious adverse events were rare, occurring in only 2.0% of patients on cefepime-taniborbactam and 1.8% on meropenem. The most common side effects included headache, diarrhea, and constipation, with a small percentage of patients discontinuing treatment due to these events.

Cefepime-taniborbactam is a promising new therapy that combines a fourth-generation cephalosporin with a novel beta-lactamase inhibitor. This dual-action approach provides broad-spectrum coverage against both serine and metallo-beta-lactamases, offering hope for patients suffering from serious bacterial infections caused by drug-resistant gram-negative pathogens, such as carbapenem-resistant Enterobacterales and Pseudomonas aeruginosa.

Everest Medicines, a biopharmaceutical company dedicated to addressing critical medical needs in Asian markets, is at the forefront of this development. With a strong management team and a portfolio of potentially groundbreaking molecules, Everest Medicines is poised to bring transformative pharmaceutical products to patients in need.

The successful Phase 3 trial and the subsequent publication in a prestigious medical journal underscore the urgent need for new treatments in the face of multidrug-resistant infections. Everest Medicines is committed to advancing this new agent through regulatory processes to make it available to patients worldwide as quickly as possible. The company's first product in the anti-infectious disease space, Xerava, along with the promising cefepime-taniborbactam, represents a significant step forward in the fight against life-threatening infections.

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