Clinical trials are widely recognized as expensive and complex projects. Budget discussions usually focus on visible cost elements such as labour fees, investigator grants, site payments, vendor contracts, other passthorough. These costs are clearly documented in study budgets and contracts and are typically tracked through project accounting systems.
However, the real operational cost of clinical trials often extends beyond these visible budget lines. During study execution, additional effort frequently arises from inefficient processes, fragmented systems, and operational challenges that require extra coordination by project teams.
Some of this work eventually appears in project effort reports. Some of it is absorbed by organizations when project budgets are exceeded. And some effort may never be formally recorded at all.
To illustrate this situation, it can be useful to distinguish between four different categories of costs in clinical trial operations: visible costs, hidden costs, absorbed costs, and unaccounted costs.