Aggregate reporting in pharmacovigilance refers to the process of collecting and analyzing data from multiple sources, such as clinical trials, post-marketing surveillance, and spontaneous adverse event reporting, to identify patterns or trends in the safety of a drug or medical product. The goal of aggregate reporting is to provide a comprehensive and accurate overview of the safety profile of a drug or medical product, and to identify any potential safety concerns. Aggregate reports are typically required by regulatory authorities as part of the pharmacovigilance requirements for drug and medical product approval and post-marketing surveillance. These reports are also used by manufacturers to monitor the safety of their products and to make decisions regarding product labeling and risk management. The most common types of aggregate reports in pharmacovigilance include periodic safety update reports (PSURs), which provide a comprehensive overview of the safety profile of a drug or medical product over a specified time period, and signal detection reports, which identify potential safety signals or concerns based on analysis of adverse event data. The process of aggregate reporting typically involves the collection and analysis of data from multiple sources, including clinical trials, post-marketing surveillance, and spontaneous adverse event reporting. This data is then analyzed using statistical methods to identify patterns or trends in the safety of the drug or medical product. The results of this analysis are then compiled into a comprehensive report, which includes a summary of the safety profile of the drug or medical product, any identified safety concerns, and recommendations for further monitoring or risk management.