Timeline Shifts

Watch over setbacks and accelerations in trial completion dates with 6 event types that highlight the varying levels of risk or progression. Link each event type with associating factors like regulatory updates, recruitment activities, and more.

Timeline Reduced Significantly

The primary completion date for this trial has been markedly sped up. Such significant accelerations can be a precursor to potential trial termination. It could imply a fundamental shift in the trial's measurements or outcomes. It might also indicate that the sponsor is contemplating halting the trial without public disclosure. Trials exhibiting this pattern have a heightened risk of termination, possibly due to interim data reviews revealing inadequate efficacy, increased adverse events, or a strategic redirection.

Timeline Reduced

The trial's primary completion date has been adjusted to an earlier timeframe. This could indicate a faster-than-expected enrollment or progression. However, it could also be a red flag that the trial isn't proceeding as planned. While such timeline reductions are often routine, the extent and history of changes can provide more insight. Notably, around 29% of trials conclude earlier than initially projected.

Significant Delay

There has been a substantial postponement in the trial's primary completion date. While not every delay is a cause for concern, extended delays might suggest issues with enrollment, drug performance, or trial execution. Such significant delays are often indicative of a higher likelihood of early trial termination and could affect the subsequent submission and evaluation phases, prolonging the time to market.


The primary completion date of this trial has been deferred. Such delays, often attributed to logistical or other standard issues, may not necessarily affect the trial's end results. However, they typically lead to postponed data readouts, results, or anticipatory commentary. It's noteworthy that 78% of all primary completion date alterations are delays.

Multiple Delays

This trial has faced multiple postponements in its timeline. While delays are not uncommon in clinical trials, recurrent delays can offer insights into the trial's overall health and trajectory. Consistent deferrals might suggest challenges in enrollment, drug efficacy, or trial management. Interestingly, 29% of trials that undergo primary completion date delays experience multiple postponements.

Phase 3 Delay

A significant delay has been observed in the primary completion date of this Phase 3 trial. Such a delay can have ramifications on the subsequent submission and evaluation phases, potentially impacting FDA approval or market entry timelines. It's worth noting that Phase 3 trial delays are relatively rarer, constituting less than 9% of all clinical trial delays.

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