Real-world evidence refers to data and information that is collected outside of traditional clinical trials, often in real-world settings such as hospitals, clinics, and pharmacies. This type of evidence is used to complement the findings from controlled clinical trials and provide a more holistic understanding of how treatments and interventions work in everyday clinical practice. Real-world evidence can include data from electronic health records, insurance claims, patient registries, and other sources. It is used to generate insights into the effectiveness, safety, and value of medical interventions in diverse patient populations and real-world settings. This type of research is becoming increasingly important in healthcare decision-making and policy development, as it can provide more generalizable and practical evidence than traditional clinical trials.