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A changed recruitment forecast affects more than the completion date. Fixed service fees, site support and supply orders may extend over a different period. Sponsors should translate uncertainty into financial decisions without allowing commercial pressure to distort appropriate participant selection or investigator judgement.
Decision framework
Separate actual recruitment, sites not yet open and assumed future rates in the model. Distinguish fixed charges from per-participant costs to show the consequences of different duration scenarios. Changes to statistical sample size or the scientific objective require appropriate scientific assessment; a budget model cannot replace that process.
Worked example
For example, sites open later than expected and reaching the same target is forecast to take longer. The project team examines licences, storage and support capacity alongside additional monitoring fees. Adding sites is not treated as an automatic solution; start-up time and new fixed costs remain visible in the comparison.
Implementation checks
- Separate observed recruitment, assumed rates and site capacity that has not yet been confirmed in each financial scenario.
- List recurring fees and service-termination dependencies that change when the expected trial duration extends.
- Define and record which forecast changes trigger another management decision in the context of the particular trial.
Acceptance and boundaries
Accept the analysis when the financial difference can be traced to its underlying assumption. Do not present one optimistic trajectory as a guaranteed result. Keep recruitment pressure separate from investigator decisions and do not trade participant protection or scientific integrity against commercial targets.
Frequently asked questions
- Do more sites always reduce total cost?
- No. Additional start-up expenditure and support needs must be assessed alongside any possible time benefit.
- How often should forecasts be refreshed?
- Refresh them when material new information becomes available or defined decision triggers occur.