Long-term Safety and Efficacy of Adjunctive Brivaracetam in Chinese Patients With Uncontrolled Focal Epilepsy

Model scores of the 29,894 trials active now.

Model score 13% for any early termination, 1% for termination due to slow enrollment. Past trials like this one (phase, sponsor type and disease area, started 2008–2016) ended terminated 15% of the time (734 trials).

Finished trial that started in 2015 or later: the model never saw it during training.

Cumulative chance of ending terminated (red) or completed (green) by each year from its start; it actually ended on 2025-04-29. The rest of the way to 100% is still running.

From the competing-risks survival model (termination vs completion, still-running trials censored), fit to trials that started 2008–2014 and recalibrated to termination rates over 2022–2024, since termination has become more common. Checked on past years, it still ran a little low when the rise continued.

• Wording of the registration (title, summary, criteria) (raises risk) · Wording Phrases that raised it: long termthe subjectcompletedof studysubjects
  Phrases that lowered it: trialefficacysafety ofdailyday
• Accepts healthy volunteers: No (raises risk) · Who can join
• Phase: 3 (lowers risk) · Design
• Sponsor's past termination rate: 0% (lowers risk) · Sponsor's track record
• Drug's FAERS reports with a death: 5.3% (lowers risk) · Drug's FDA history
• Disease area, neurology: Yes (raises risk) · Disease area
• Design: single group (raises risk) · Design
• Has a data monitoring committee: No (lowers risk) · Design
• Drug's FAERS reports marked serious: 77.4% (lowers risk) · Drug's FDA history
• Disease area, cancer: No (lowers risk) · Disease area
• Trials the sponsor started in the prior 2 years: 9 (raises risk) · Sponsor's track record
• Primary purpose: treatment (raises risk) · Design
• Sponsor type: industry (lowers risk) · Sponsor's track record
• Minimum age: 16 (raises risk) · Who can join
• Number of arms: 1 (raises risk) · Design
• Sponsor's past trials: 3 (raises risk) · Sponsor's track record
• Blinding: none (raises risk) · Design

Every input that moved this score, largest first: SHAP contributions in log-odds, red raising risk and green lowering it. They describe the model, not causes of termination. Phrases are traced from the text features back to this registration's words, approximately.

• Evaluation of Long-term Safety, and Efficacy of Brivaracetam (BRV) Used as Adjunctive Treatment in Subjects With Epilepsy NCT01728077 · started 2012 · scored riskier than 26% of active trials completed
• Brivaracetam Safety and Efficacy Follow-up Study in Subjects With Epilepsy NCT01339559 · started 2011 · scored riskier than 45% of active trials completed
• A Study to Test the Safety/ Efficacy of Brivaracetam (BRV) Used as Adjunctive Treatment in Subjects >=16 Years of Age With Partial Seizures With or Without Secondary Generalization NCT03250377 · started 2017 · scored riskier than 15% of active trials completed
• An Open-label, Multinational, Multicenter, Follow-up Study to Evaluate the Long-term Safety and Efficacy of Brivaracetam NCT00761774 · started 2008 · scored riskier than 60% of active trials completed
• A Study to Test the Long-term Safety, Tolerability and Efficacy of Brivaracetam in Study Participants 2 to 26 Years of Age With Childhood Absence Epilepsy or Juvenile Absence Epilepsy NCT05109234 · started 2022 · scored riskier than 54% of active trials completed

Closest by meaning of the registration text (PubMedBERT embeddings), among finished trials. How they ended is context, not an input to this trial's score.