VTE Prevention Following Total Hip and Knee Arthroplasty
Model scores of the 29,894 trials active now.
Model score 11% for any early termination, 5% for termination due to slow enrollment. Past trials like this one (phase, sponsor type and disease area, started 2008–2016) ended terminated 20% of the time (381 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2026-06-10, after 2021-02-04 start.
The score above never used this outcome: finished trial that started in 2015 or later: the model never saw it during training.
Termination over time, as the model saw it at the start
Cumulative chance of ending terminated (red) or completed (green) by each year from its start; it actually ended on 2026-06-10. 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.
What moved the score
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Accepts healthy volunteers: No (raises risk) · Who can join
-
Wording of the registration (title, summary, criteria) (raises risk) · Wording
Phrases that raised it: metastaticcancerdiseasebreastlife
Phrases that lowered it: kneeinvestigatoraspirinperiodfood -
Sponsor's past termination rate: no earlier finished trials (lowers risk) · Sponsor's track record
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Collaborators: 3 (lowers risk) · Design
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Phase: 3 (lowers risk) · Design
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Primary purpose: prevention (lowers risk) · Design
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Number of arms: 4 (lowers risk) · Design
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Drug's FAERS reports with a death: 10.6% (lowers risk) · Drug's FDA history
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Sponsor type: academic or other (raises risk) · Sponsor's track record
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Responsible party: sponsor investigator (raises risk) · Design
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Trials the sponsor started in the prior 2 years: 0 (raises risk) · Sponsor's track record
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Has a data monitoring committee: Yes (raises risk) · Design
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Disease area, cancer: No (lowers risk) · Disease area
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Blinding: quadruple (lowers risk) · Design
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Drug's FAERS reports in the prior 12 months: 64608 (raises risk) · Drug's FDA history
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Minimum age: 18 (raises risk) · Who can join
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Maximum age: not given (raises risk) · Who can join
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Drug's FAERS reports marked serious: 76.0% (lowers risk) · Drug's FDA history
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Disease area, cardiovascular: 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.
The trial
Design
- Phase
- 3 (typical: 2)
- Number of arms
- 4 (typical: 2)
- Allocation
- randomized
- Design
- sequential (typical: parallel)
- Primary purpose
- prevention (typical: treatment)
- Blinding
- quadruple (typical: none)
- Has a data monitoring committee
- Yes (typical: 56% yes)
- Responsible party
- sponsor investigator (typical: sponsor)
- Collaborators
- 3 (typical: 0)
- Keywords listed
- 1
Who can join
- Minimum age
- 18
- Maximum age
- not given (typical: 71)
- Sex
- all
- Accepts healthy volunteers
- No (typical: 9% yes)
Sponsor's track record
- Sponsor type
- academic or other
- Sponsor's past trials
- 0 (typical: 32)
- Sponsor's past termination rate
- no earlier finished trials (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 0 (typical: 19)
Drug's FDA history
- Drugs with FDA adverse-event history
- 2 (typical: 1)
- Drug has FAERS history
- Yes (typical: 64% yes)
- Drug's FAERS reports before start
- 702786 (typical: 2148)
- Drug's FAERS reports in the prior 12 months
- 64608 (typical: 412.5)
- Drug's FAERS reports marked serious
- 76.0% (typical: 85.6%)
- Drug's FAERS reports with a death
- 10.6% (typical: 15.9%)
Disease area and drugs
- Disease areas
- cardiovascular
- Drugs matched to FDA substances
- aspirin, rivaroxaban
Typical values are among the trials active now. Sponsor and drug history are counted only up to this trial's start date.
Similar finished trials
- Extended Venous Thromboembolism Prophylaxis Comparing Rivaroxaban to Aspirin Following Total Hip and Knee Arthroplasty NCT01720108 · started 2013 · scored riskier than 48% of active trials completed
- Evaluation of AVE5026 as Compared to Enoxaparin for the Prevention of Thromboembolism in Patients Undergoing Total Hip Replacement Surgery NCT00697099 · started 2008 · scored riskier than 17% of active trials completed
- Comparative Study of Prophylactic Agent for Venous Thromboembolism After Total Knee Arthroplasty NCT02271399 · started 2014 · scored riskier than 10% of active trials completed
- Dabigatran Etexilate Compared With Enoxaparin in Prevention of Venous Thromboembolism (VTE) Following Total Hip Arthroplasty NCT00657150 · started 2008 · scored riskier than 12% of active trials completed
- Efficacy of RIvaroxaban for Prevention of Venous Thromboembolism After Knee Arthroscopy NCT01629381 · started 2012 · scored riskier than 66% 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.