%0 Journal Article %A Hassoun-Kheir, Nasreen %A van-Werkhoven, C Henri %A Dunning, Jake %A Jaenisch, Thomas %A van-Beek, Janko %A Bielicki, Julia %A Butler, Christopher C %A Francois, Bruno %A Harbarth, Stephan %A Hernandez Padilla, Ana C %A Horby, Peter %A Koopmans, Marion %A Lee, James %A Rodriguez-BaƱo, Jesus %A Tacconelli, Evelina %A Themistocleous, Yrene %A van-der-Velden, Alike W %A Bonten, Marc %A Goossens, Herman %A de-Kraker, Marlieke E A %T Perpetual observational studies: new strategies to support efficient implementation of observational studies and randomized trials in infectious diseases. %D 2022 %U http://hdl.handle.net/10668/22135 %X Emerging infectious diseases are a growing threat, through population growth , increased trade and travel , urbanization , deforestation , and climate change [1]. Clinical research in response to emerging infectious diseases is challenging; selecting and contracting the appropriate study sites for a trial is time consuming, and often too few patients can be timely recruited to acquire high-quality evidence about the best treatment strategies [2]. In 2014, the EU-funded PREPARE project (Platform foR European Preparedness Against (Re-)emerging Epidemics ) was initiated to rapidly respond to severe infectious diseases outbreaks . It initiated two adaptive platform trials, the REMAP-CAP [3] and the ALIC4E trial [4], determining the effectiveness of multiple treatment strategies for a single disease . The REMAP-CAP trial was designed for a pandemic of severe community-acquired pneumonia and expanded globally during the COVID-19 pandemic. It has already delivered 10 important conclusions for better treatment of COVID-19 [3]. %K Antimicrobial resistance %K Emerging infectious diseases %K Perpetual observational studies %K Research network %K Study methodology %~