An Open-label Extension Trial to Evaluate the Long-term Safety of KVD900 (Sebetralstat) for On-Demand Treatment of Angioedema Attacks in Adolescent and Adult Patients With Hereditary Angioedema (HAE)

Model scores of the 29,894 trials active now.

Model score 13% for any early termination, 2% for termination due to slow enrollment. Past trials like this one (phase, sponsor type and disease area, started 2008–2016) ended terminated 14% of the time (493 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 2026-05-27. 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: enrollmentpatientpatients mustable totestosterone
  Phrases that lowered it: trialsafety ofevaluate theto evaluatelong term
• Accepts healthy volunteers: No (raises risk) · Who can join
• Sponsor's past termination rate: 0% (lowers risk) · Sponsor's track record
• Phase: 3 (lowers risk) · Design
• Has a data monitoring committee: not given (lowers risk) · Design
• Design: single group (raises risk) · Design
• Drug's FAERS reports with a death: 0% (lowers risk) · Drug's FDA history
• Trials the sponsor started in the prior 2 years: 2 (raises risk) · Sponsor's track record
• Disease area, cancer: No (lowers risk) · Disease area
• Sponsor type: industry (lowers risk) · Sponsor's track record
• Drug's FAERS reports marked serious: 100% (raises risk) · Drug's FDA history
• Primary purpose: treatment (raises risk) · Design
• Sponsor's past trials: 6 (raises risk) · Sponsor's track record
• Disease area, cardiovascular: Yes (raises risk) · Disease area
• Number of arms: 2 (raises risk) · Design
• Disease area, dermatology: Yes (raises risk) · Disease area

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.

• A Phase III, Crossover Trial Evaluating the Efficacy and Safety of KVD900 (Sebetralstat) for On-Demand Treatment of Angioedema Attacks in Adolescent and Adult Patients With Hereditary Angioedema (HAE) NCT05259917 · started 2022 · scored riskier than 9% of active trials completed
• A Phase II, Cross-over Clinical Trial Evaluating the Efficacy and Safety of KVD900 (Sebetralstat) in the On-demand Treatment of Angioedema Attacks in Adult Subjects With Hereditary Angioedema Type I or II NCT04208412 · started 2019 · scored riskier than 7% of active trials completed
• A Trial to Evaluate the Efficacy and Safety of Different Doses of KVD824 for Prophylactic Treatment of HAE Type I or II NCT05055258 · started 2021 · scored riskier than 22% of active trials terminated
• Open-Label Safety, PK, and Efficacy Trial of Sebetralstat (KVD900) in Pediatric Patients (Ages 2-11) With HAE Type I or II NCT06467084 · started 2024 · scored riskier than 20% of active trials completed
• Long-term Safety and Efficacy Study of DX-2930 (SHP643) to Prevent Acute Angioedema Attacks in Patients With Type I and Type II HAE NCT02741596 · started 2016 · scored riskier than 19% 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.