RT Journal Article T1 PROPHETIC EU: Prospective Identification of Pneumonia in Hospitalized Patients in the Intensive Care Unit in European and United States Cohorts. A1 Bergin, Stephen P A1 Calvert, Sara B A1 Farley, John A1 Sun, Jie-Lena A1 Chiswell, Karen A1 Dieperink, Willem A1 Kluytmans, Jan A1 Lopez-Delgado, Juan Carlos A1 Leon-Lopez, Rafael A1 Zervos, Marcus J A1 Kollef, Marin H A1 Sims, Matthew A1 Kabchi, Badih A A1 Rubin, Daniel A1 Santiago, Jonas A1 Natarajan, Mukil A1 Tenaerts, Pamela A1 Fowler, Vance G A1 Holland, Thomas L A1 Bonten, Marc J A1 Hullegie, Sebastiaan J K1 antibacterial agent K1 bacterial pneumonia K1 health care–associated pneumonia K1 intensive care unit K1 mechanical ventilator AB The prospective identification of patients at high risk for hospital-acquired/ventilator-associated bacterial pneumonia may improve clinical trial feasibility and foster antibacterial development. In a prior study conducted in the United States, clinical criteria were used to prospectively identify these patients; however, these criteria have not been applied in a European population. Adults considered high risk for pneumonia (treatment with ventilation or high levels of supplemental oxygen) in the intensive care units of 7 European hospitals were prospectively enrolled from June 12 to December 27, 2017. We estimated the proportion of high-risk patients developing pneumonia according to US Food and Drug Administration guidance and a subset potentially eligible for antibacterial trial enrollment. We compared patient characteristics, treatment exposures, and pneumonia incidence in a European cohort and a previously described US cohort. Of 888 high-risk patients, 211/888 (24%) were treated for possible pneumonia, and 150/888 (17%) met the Food and Drug Administration definition for hospital-acquired/ventilator-associated bacterial pneumonia. A higher proportion of European patients treated for possible pneumonia met the pneumonia definition (150/211 [71%] vs 537/1464 [37%]; P  Clinical criteria prospectively identified high-risk patients with high rates of pneumonia in the European cohort. Despite higher rates of established risk factors and incident pneumonia, European patients were significantly less likely to receive antibiotics for possible pneumonia than US patients. Different treatment practices may contribute to lower rates of antibacterial trial enrollment in the United States. SN 2328-8957 YR 2022 FD 2022-05-09 LK http://hdl.handle.net/10668/19824 UL http://hdl.handle.net/10668/19824 LA en DS RISalud RD Aug 29, 2025