1. A computer-implemented method comprising: displaying a graphical user interface on one or more display screens, the graphical user interface providing a graphical representation of at least a portion of a clinical trial and comprising a plurality of graphical nodes, the plurality of graphical nodes comprising: a central node; one or more first child nodes directly connected to the central node, each of the child nodes representing aspects of the clinical trial; one or more second child nodes, each of the one or more second child nodes directly connected to one of a first child node or a second child node and indirectly connected to the central node, each of the second child nodes representing a sub-node of the respective directly connected node, and wherein at least one of the first or second child nodes is associated with an editor configured to enable modification of one or more parameters associated with the respective first or second child node; accessing a database to retrieve information associated with the clinical trial; retrieving information from the database, the information associated with the first child nodes and the second child nodes; propagating the information through the child nodes to the central node; and displaying summary information about the clinical trial based on the propagated information.