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How to Identify an Underperforming Clinical Trial Site
An underperforming clinical trial site is rarely the one that fails dramatically in a single visit. It is the site whose recruitment has been "about to start" for two months, whose queries age without an owner, and whose monitoring reports describe the same training gap in different words.
Signals worth trusting
Look at enrolment against the site's own forecast, not against a hopeful country total. Look at time from visit to report, and from report to closed action. Look at protocol deviations that cluster around one procedure. Look at staff changes that were never followed by re-training. Look at whether the investigator is present in the decisions or only on the delegation log.
Clinical site management is the work of acting on those signals: readiness, activation, performance review and issue resolution. Monitoring is often where the signal is first written down. If nobody above the monitor reads for pattern, the site can underperform in plain sight.
The same habit of early pattern-reading is described in five early warning signs a trial is moving off plan.