PIVOT-PO Phase 3 Data Show Tebipenem HBr’s Potential as the First Oral Carbapenem Antibiotic for Patients with Complicated Urinary Tract Infections (cUTIs)

Core Insights - Spero Therapeutics and GSK announced positive results from the pivotal phase 3 PIVOT-PO trial for tebipenem HBr, an oral treatment for complicated urinary tract infections (cUTIs) [1][5] Industry Overview - Complicated UTIs are a significant health issue, with approximately 2.9 million cases treated annually in the U.S., leading to over $6 billion in healthcare costs each year [2] - These infections are often caused by multidrug-resistant pathogens, resulting in serious health risks such as organ failure and sepsis [2] Trial Results - The PIVOT-PO trial demonstrated non-inferiority of tebipenem HBr compared to intravenous imipenem-cilastatin, with an overall success rate of 58.5% for tebipenem HBr versus 60.2% for imipenem-cilastatin [3][6] - Clinical cure rates were 93.5% for tebipenem HBr compared to 95.2% for imipenem-cilastatin, while microbiological response rates were 60.3% and 61.3%, respectively [6] Regulatory and Market Implications - GSK plans to submit data to U.S. regulatory authorities in Q4 2025, aiming for tebipenem HBr to become the first oral carbapenem antibiotic for cUTIs in the U.S. [7] - The development of tebipenem HBr is supported by federal funds from the U.S. Department of Health and Human Services [8] Company Collaboration - Spero Therapeutics has licensed tebipenem HBr to GSK for development and commercialization, with GSK responsible for regulatory filings [7][9] - The collaboration aims to address the challenges of antimicrobial resistance and expand GSK's anti-infectives portfolio [7]